PFG Live

PFG.Live 2024-0908: Peel Grinding Success for Lapzetti Plates! Sep 08, 2024

EINSTAR Scanning And Object Replication - We used the EINSTAR to scan and replicate a Thumb CMC Splint. It's a very organic shape and it weren't easy. Peel Grinding Success for Lapzetti Plates - Peel Grinding is an interesting technique introduced to us by Adam Demuth ( @adamthemachinist ). It was a win for an application we did not predict. Ford Lightning 20K report... and More! - 20,000 electric miles, and... spoilers!... it's been great. Referenced videos: Robin Renzetti ( @ROBRENZ ), on "The Magic Sanding Plate": https://youtu.be/0PzCie9pgPk Adam Demuth ( @adamthemachinist ), on peel grinding: https://youtu.be/gS65Fb4M2wY ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0825: Bambu Filaments Shakeup! PETG-HF? Aug 25, 2024

Bambu Filaments Shakeup! PETG-HF? - TWO of our favorite filaments are discontinued, forcing us to evaluate replacements. Inventory is good for a few months while we do that, but initial experiments indicate a possible overall winner. Pining For The Fjell - A Grimsmo Visit - We had a nice social visit from John Grimsmo ( @JohnGrimsmo ) and his kiddos. Pizza was consumed. Knives were discussed. More importantly, I was bequeathed a Norseman, and got to fondle the Fjell. They are BOTH awesome. PETG information: https://store.bambulab.com/products/petg-hf Grimsmo's Fjess: https://grimsmoknives.com/collections/fjell This is my BIG ultrasonic cleaner: https://amzn.to/3H3ZGvV This is my LITTLE ultrasonic cleaner: https://amzn.to/3ZxnPSJ ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0818: Two Guys and a Pencil Aug 18, 2024

Tom Lipton ( @oxtoolco ) and Robin Renzetti ( @ROBRENZ ) collaborate on a tight-tolerance design of a rotary grinding attachment. Each has different requirements, and the cross-pollination of knowledge is of huge value. Notes will be taken. Knowledge will be gained. ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0811: Not-So-Free Willy - with John Saunders Aug 11, 2024

PFG.Live 2024-0804: Fanuc, Haas, and Batteries... Oh My! Aug 04, 2024

FormLabs Rigid 10K... It is! - This resin is highly glass-filled, and it's amazingly dense and stiff. I am testing it for it's electrical properties at RF frequencies! https://formlabs.com/store/materials/rigid-10k-resin/ Fanuc, Haas, and Batteries... Oh My! - I use a product from Haas to solve a Fanuc problem. But, the origin story of this product has a twist. Links discussed: https://www.practicalmachinist.com/forum/threads/haas-tl-1-dead-why.299570/ https://www.youtube.com/watch?v=m__CSCT6Wnw Cubic Clutter Credits! Volumetric Value. - We talked about Clutter Credits to help understand the clutter problem and motivate some cleaning, but let's talk about it in 3D! And more... ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0728: Special Guest - James Clough Jul 28, 2024

PFG.Live 2024-0714: Prototyping Precision Paper Punchers with Adam Demuth Jul 14, 2024

Guest: Adam Demuth! - We catch up with one of our favorite toolmakers and learn of his recent exploits. Recent projects include some fun ceramics projects. Prototyping Precision Paper Punchers - Precision paper punching at a distance is an interest shared by many machinists, and Adam and Spencer are no exceptions. We discuss Adam's designs and implementations. His innovative use of his grinder in precision "shaping" is unique! The Artwork of John Moses Browning - putting things in perspective, in particular some of Browning's work from 1911. It is reported that he is responsible for some long-playing 45's, which have still not been replaced by CDs or DVDs. And, of course, more... Check out Adam's channel at @adamthemachinist ! ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0630: Killing the Elephant's Foot Jun 30, 2024

Direct to Build-Plate SLA - We are so used to seeing SLA (resin) prints on supports, we forget that direct-to-buildplate is possible. The DAMTEE and DAMKEEZ projects were examples of parts that take advantage of no-supports. Lessons were learned in failed prints when we made the MOLY-2 holders. We're getting the hang of it. Killing the Elephant's Foot on the Form 4 - When you print direct to the build plate, there is an "elephant's foot" at the bottom of the print. This is there for good reason, as it is in FDM printing, sometimes. The mechanism is investigated, and a mitigation is tested... successfully. Hearing Protection in the Shop - Please! - We look at specific recommendations, both Bluetooth-enabled and not. Costs range from 20 cents to about 20,000 cents. ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0623: Solopreneurship: Stay On Target! Jun 23, 2024

Solopreneurship: Stay On Target! - It is not easy recognizing when you are drifting off course. The gifts of collaborative on-line tools. Making hard decisions. I Really Need to Vent! - Putting an electronics enclosure into a harsh, marine environment. 'Tain't easy. To vent or not to vent an enclosure... that is the question. 3D Scanning: Non-Trivial - We have an intern starting from zero, trying to use our Einstar 3D Scanner to produce a good solid model. Ehhh.... not quite there yet. ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0616: Housing Design for Extreme Environments Jun 16, 2024

Solvents in the Shop! - Some are benign, some are downright dangerous. Choose wisely and use them safely. Three-Step SLA Support Recipe? - I have come up with a recipe which may be useful in many SLA situations. The speed of the Form 4 printer caused me to rethink my recipe with good results. Housing Design For Extreme Environments - I am in the middle of a design for a client, and it's got me thinking about the rules for making equipment housings in different environments. From beneath the sea to space and everywhere in between. OK... mostly between. ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0609: DAMTEE and DAMKEEZ: A Study In P1 Jun 09, 2024

DAMTEE and DAMKEEZ: A Study In P1 - What started as a joke with my wife (alleging that I keep losing my tea between shop, truck, office and kitchen) became a design exercise and a successful one at that. It also highlights the important of the Way of P1! 3DP Plastics in Hi-Temp Applications - A chat with John Saunders @nyccnc about the threat of part damage leads to considering different materials in FDM and SLA additive manufacturing. Tired While Machining: CHECKLISTS! - I had a (minor) checklist failure, so let's learn from it. Continuous improvement of the checklist process. What's a "flow checklist"? ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0602: Catching Up With Tom Lipton Jun 02, 2024

Catching Up With Tom Lipton - He's been a busy guy, and we miss him. Let's see what's happening in the wilds of California. Who Wouldn't Want More Moore? - Holy Surface Plate, Batman!! Tom hints at a new find, and it looks awesome! A Five-Block Test On The Form 4 - Printing directly to the build plate has been a challenge. We found ... a problem?? A surprising update. ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0526: Kish and Moly: A True Story May 26, 2024

Form 4 Arrives: One Software Glitch - It's up and running and the first prints are spectacular. But, getting started was not trivial, and it took some doing. It's always software, ain't it?! Kish and Moly: A True Story - We revisit the classic story to celebrate the availability of Moly Sticks for diamond wheel dressing on the KP Store. And, y'know, knowledge. Grinding Wheel Uniformity - A gedanken experiment leads to a scary result in grinding. An unsolvable problem? ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0519: Printing Grimsmo Bearing Cages: P11 Wins! May 19, 2024

FormLabs 4: Second Visit Followup - In which I asked FormLabs to print some samples on the new Form 4, and I got to do further investigating. And, boy, did I find out some things. :-) Printing Grimsmo Bearing Cages: P11 Wins! - John asked if we could try SLA-printing his bearing cages. It only took until P11, but it seems to be skookum. Self-Checking Gages - We discuss two useful examples of self-checking gages, and several cases that are not! Source for small quantities of pitch: https://firsthanddiscovery.com/ ----- Save $500 at FormLabs by using my referral code at the Links page, below. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0505: Over-automation in the Small Shop May 05, 2024

Upgrade to Form 4 Printer? - We've been making the family of NOZ products on the @Formlabs Form 3+ printer. How do we react to the new Form 4? Productize 6-inch Lapping Plates? - As we build out out hand-lapping system, requests for the 6-inch lapping plates are coming in. Do we add it to the KP product list? Over-automation in the Small Shop - Can you have too much automation? Yes! When do you know it's time? Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0428: The Joy Of Unnecessary Precision Apr 28, 2024

Lapping From Ra to Rz - I was challenged by @proteummachining to start looking at Rz rather than Ra for surface roughness. Let's see why. Wireless Devices In The Shop - In which I cross the streams. Inspired by @JohnGrimsmo having issues with his Bluetooth probe, I find it necessary to talk antennas. Again. The Joy Of Unnecessary Precision - We love to chase it, but at what cost? If you're doing it as a business, know your limits. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0421: The Expensive Stuff Is Cheaper Apr 21, 2024

3-inch ToolMakers Flat: First Lapping! - After all the preparation, I finally do the first lapping... and it rocks. Process improvements will, of course, ensue. The Expensive Stuff Is Cheaper... Again. - In which I buy a carbide tool which was cheaper, and end up breaking it. Then buying what I should have bought in the first place. Buying Stuff To Take Apart And Learn - My son, Jared, asks if we can buy a thing to take apart. Because he wants to design a better one. Correct parental answer?? "OF COURSE!!". And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0414: P1 is Life Apr 14, 2024

P1 is Life - Making the first prototype, and noting how long it lasts. It's a metaphor for ... everything. Making a Lapping Station - Fixin' to get ready to lap, specifically the ToolMakers Flat TMF-3 What's All The Fuss About An Ellipse?? - A report from the Eclipse, and why Ellipses are interesting. And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision) Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

PFG.Live 2024-0407: Storms, Blackouts, Earthquakes, Eclipses! Apr 07, 2024

Storms, Blackouts, Earthquakes, Eclipses! - I wish we were kidding. All this happened in the last week, or will tomorrow. Success Hand-Tapping, Next Hand-Lapping - We got the 4142 Pre-hard part tapped, and the ToolMakers Flat is ready for hand lapping. What's the plans? Will A.I. Design and Machine Your Parts? - It's starting to be a question. And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0331: ToolMakers Flat Followup Mar 31, 2024

Followup on the ToolMakers Flat in 52100 Steel... Quicken The Quench: Heat The Oil? - A casual question from Tom Lipton set me on a course... does heating the quenching oil quicken the quench. Does the Temper Negate The Cryo? - Spoiler: No. They do different things. Crappy Tapping In 4142 Pre-Hard - I am not having fun with this operation. There are reasons. And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0317: Of Clock Springs And Toolmakers Flats Mar 17, 2024

Of Clock Springs And Toolmakers Flats: Turning the 52100 steel produced some pretty evil chips. Some of them broke. 52100 Steel: Planning The Heat Treatment: We are ALMOST running the recipe recommended by the NBS (now NIST) many years ago. Will our minor deviations matter? We'll see. A Box Of Grinding Gems From Tom: Books and goodies from Tom Lipton. Very neat stuff, and the knowledge was hard-earned by our ancients. And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0310: Crash Recovery: Just Breathe Mar 10, 2024

Rotary OD Lapping: Sine Rolls - We make a soft lap from scrap. We struggle with three different compound choices, and end up where we should have in the first place. Evaluating Round, Straight, Size - It's not trivial down in the Tenths. Crash Recovery: Just Breathe - It happened. Nobody died. Nothing broke. We'll do laundry later... And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0303: I Didn't Expect The Backlash! Mar 03, 2024

Successful Sidewheeling - We learn about "forming" the wheel, and finally nailing the dimenensions. I Didn't Expect The Backlash! - Would have been fine in a mill, not so much in a surface grinder. But, we overcame. Sine Right Here: Charles W. Sullivan - His signature is preserved, and we thank him for a cool tool. We went deep on side-wheeling with Robin Renzetti @ROBRENZ . And more... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0218: Restoring and Using Tools Feb 18, 2024

Restoring and Using Tools: Getting old tools, especially shop-made tools, back to working order and using them productively. Tighten Your Hub: Staying concentric, stable, true and dressed. Oh, and also in your grinding... Helping Non-Machinists: There Is No Sketch: We make brackets. But, we need to become communicators with those that don't have the technical skills, but still have stuff they need. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0211: Decluttering with Mental Money Feb 11, 2024

Grinder Therapy: We discuss "grinding in" two cast iron instruments for our friend UnixCarbide Autocollimated Boring: Unix completes the supply chain by delivering bagels... and some goodies from across the planet Decluttering With Mental Money: How Two Bucks is going to save your shop Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0204: The MIT LMP Shop: A Student's First Chips Feb 04, 2024

The MIT LMP Shop: A Student's First Chips Guest: Dan Gilbert, Instructor ! McMaster Drawing, Your Queries, and More... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0128: Chattering About Damping And Resonance Jan 28, 2024

McMaster Catalog Giveaway Visiting Two University Shops Chattering About Damping And Resonance We're giving away a McMaster-Carr Catalog!! 1) Be subscribed to the YouTube channel 2) Comment on the YouTube video as directed in this podcast! We will randomly draw a winner next week. Deadline is midnight Saturday. (Award is at our sole direction. No purchase required. Not endorsed by YouTube.) Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0121: The Many Aluminum Alloys Jan 21, 2024

Euphamistics: Precision Hole Punching The Many Aluminum Alloys Restoration Of Others' Shop-Made Tools Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0114: Tom Lipton Jan 14, 2024

Guest: Tom Lipton! Lessons From Moving Into A New Shop Attracting Talent To Our National Labs And, of course, more! Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2024-0107: What Is The Ideal CNC Cycle Time? Jan 07, 2024

Happy New Year 2024! Pinch of Copper? What is the Ideal CNC Cycle Time? Tools, Food, Earthquakes, Oh My! Preparing resin-bonded diamond wheels... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1217: At Home With 460-Volt Machines Dec 17, 2023

USA to Canada Shipping: What's DDP?!... and why does it save a bunch of costs for send PFG Stones Northward? Preparing For SLicing Ruby Stone... Which blade? What procedure? At Home With 460-Volt Machines... What Adam ( @adamthemachinist ) learned and what Aaron needs to know. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1210: Self-Employment with Stefan Gotteswinter Dec 10, 2023

Guest: Stefan Gotteswinter Self-Employment: How and When What gear do you need first? Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1203: Good First Effort Dec 03, 2023

Diamond Saw Blade On My Grinder: Crazy? - As the old "saw" goes: if it's crazy and it works, then it's not crazy. Spoiler: I ordered a blade for modifying. Machine Shop Tables and Workbenches - A hot topic in our Discord server. What works, and what doesn't Rotary Blades: "Good First Effort" - So says Mom. But, I make several improvements and get ready to test again. This is Engineering. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1119: Undercomplicationalism Nov 26, 2023

Undercomplicationalism - How to get Mom's rotary blades sharpened in less time than it takes to justify buying new ones. Machinist Every-Day Carry - What's in your pockets? Data Wrangling - How I am learning to gather and deliver useful data from inside my shop and out. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1119: Tolerance is Money, Friend! Nov 19, 2023

Tolerance is Money, Friend! - Chasing tight tolerances which are not needed is a disservice to your client... and to you. The Tool Your Grinder's Hydraulic Table Needs - Have a grinder with an automatic hydraulic table? Here is a tools which I have been using for years, which improves process reliability and consistency. Web(b)hooks, AIO and Discord: A Dev Story - Ever file a ticket with tech support? How'd that go? How about finding a bug in the service you are paying for, and getting it fixed in less than an hour? Yes, it did happen. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1112: Very Flat ... Magnet?! Nov 12, 2023

Very Flat ... Magnet?! - I respond to a client request for a flat surface on a magnet. There were some surprises. Mandatory Grinding Tools - What tools should be within arm's length whilst working on your surface grinder. Besides your tea. HackRH Update - We're slowly improving battery life even further, and using Adafruit IO to good advantage. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1105: Non-linear Rails Nov 05, 2023

Breaking News! -- a report from the New York City Marathon, LIVE! Instant Kiki Collab - A fast collaboration on 3D printing happened. It illustrates the power of the 'net. Linear Rails: $12 or $450? Yes. - An unexpectedly rich lesson, from unannounced guest Robin Renzetti ( @ROBRENZ ), in bearings, linear and otherwise. Get your notebook. --- https://www.printables.com/model/419247-calibration-kiki https://www.malloywind.com/articles/what-is-heathcote-slip https://www.amazon.com/Introduction-Tribology-Bharat-Bhushan/dp/1119944538/ --- Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1029: Make 'em Think Oct 30, 2023

Trebuchet Week: Make 'em Think - The kids design, build and test a trebuchet. The goal? Hit their Physics Teacher in the face with a water balloon at 35 meters. We are joined by that teacher, Mr. Pat Kaplow of Windham High School. A Surface Grinder Finish Puzzle - I worked with John Saunders @nyccnc to noodle out a weird surface finish puzzle. I consulted with @ROBRENZ , and we had the epiphany. Another 3D Printed Grinding Jig - holding gage pins for end grinding... to use as a cutting tool?!??! We are joined by Ike IG: @unixcarbide, and @unixcarbide6724 . Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1022: I Wood If I Must Oct 22, 2023

I Wood If I Must: I help a team of young'uns from the HS Physics class to build a trebuchet. Outside the shop. Learning From Pythonistas - The RH Sensor project hits new milestones, and is ready for polish and packaging, thanks to the contributions of other software pros. Sensors Now Publishing to AdaFruit IO - The sensors are now publishing via MQTT (?!) and we can bring up graphs, charts, and real-time data!! Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1015: The One Year Sensor Oct 15, 2023

RH/Temp Sensor Reports On-line For a Year On a Battery! - A software/hardware breakthrough and a hardware guy learns Python. Current measurements say we have arrived at the goal. Boring Tool Breakage Analysis - I broke my boring tool. May as well learn from it. 3DP: Prototype Fast and Smart - My tricks for empirical prototyping of features of larger projects. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1008: Fixturing Weird Grinding Jobs Oct 08, 2023

Cardboard Aided Design (CAD) - Prototype #1 needs to be right now! Fixturing Weird Grinding Jobs - You want me to grind WHAT?!??! Sensor Update: More Betterer - We have smoothed out our software, and are getting great battery life. How I learned to love error traps. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-1001: Surface Grinder Workflow with Adam Demuth Oct 01, 2023

Guest: Adam Demuth! - A magnificent Toolmaker and teacher, Adam brings his wisdom. Surface Grinder Workflow - By request by a watcher/listener... consumer? Feather/SHT4x Battery Life: Unlocked! - We lost some hair figuring this one out, but we may have achieved 60-day battery life versus 18-hours. We explain how. Ford F-150 Lightning: 10K Report - Yep, it's going in for it's first checkup. See what my squawks are, and how the electric life has been. Adam Demuth on YT: @adamthemachinist , and on Instagram: "adam_the_machinist" The powder coating tape for the top of the demagnetizer: https://www.mcmaster.com/7630A23/ Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-0924: Further Feather Fiddling Sep 24, 2023

Feather Development Stand - The STL files are in the links page. Super useful for desktop development. Sensing: Temp, RH, Battery - getting the most out of the SHT4x, and the onboard battery conditioning chip. Notifications, Network Time, more! - We learn about ntfy.sh and use it for notifications from Feather to Phone. We use the NTP protocol to synchronize the time in the Feather. This is going to be a super useful tool all around the shop. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-0917: Talking SHT4x: Secrets revealed! Sep 17, 2023

Talking SHT4x: Secrets revealed! - The Sensirion has a heater in it for a reason. We uncover the reasons as well as a total lack of suggestions as to how to use it. Hardware Guy Learns Software? - Adafruit endeavors to make it easy, but it's a bit of a labyrinth. I get help. Prepping a Very Small Well - I need help. I am fixing a broken spoon. A very expensive scientific spoon. And I have been procrastinating masterfully. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-0910: Out With The Old! Sep 10, 2023

New 1st Layer Graphics Hack - This is why we have a Discord server: Colaboration!! Thanks, Dylan at Proteum Machining. @proteummachining7039 Advanced Sensors Capability - We unlock the Adafruit cloud solution with no coding, and we start learning how to code for the next step. New Dessicant Procedures - Just when you thought we had dessicants and their use figured out... I change my mind. You'll like it. Kiridashi Thoughts - I have been wanting to make a Kiridashi for a while. I think I have my recipe. And.... We say good-bye to the PRUSAs, add styli to the Bambus, and put some goodies in stock. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-0903: Adam Balogh - Crushing It In Precision Machining Education Sep 03, 2023

Adam Balogh - Crushing It In Precision Machining Education (98%) Relative Humidity Remote Data Collection Unlocked - Adafruit has some nice tech, and we are testing it. (2%) Yeah, we went down the rabbit hole with Adam Balogh of Laney Machine Tech. We'll get back to data collection next week. The book that was referenced: Precision Machine Design, by Alexander H. Slocum. (ISBN-10: 0872634922) Amazon link: https://amzn.to/3sIdl7m Link to MIT Open Courseware of same name: https://ocw.mit.edu/courses/2-75-precision-machine-design-fall-2001/ Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG.Live 2023-0827: Registered Trademark! Why? Aug 29, 2023

Improving the Products - we discuss small improvements which is a never-ending process Registered Trademark! Why? - over a year of waiting... why it's valuable. B-200 Production Wrap-up - lessons learned on batch number three. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones®" is a registered trademark of Kinetic Precision)

PFG Live 2023-0820: Twisted Concentricity Aug 20, 2023

Software is Hard? Where? - We take the dive into Adafruit Feathers and our favorite humidity sensor. Torque Your Gripper - Wrapping up the 2023 B-200 Balancing Ring production run - Lessons Learned Twisted Concentricity - We collect data on the BS-8 Balancing Stands, and find surprises. Good ones. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0813: If it's crazy, and it works, then it's not crazy Aug 13, 2023

BS-8 3DP TIR... So Far, So Good If it's crazy, and it works, then it's not crazy. Finalizing Our RH Standard - $30 for 1.8% RH accuracy down to 0% SLA Printing a Haimer tip for Saunders Machine Works ( @nyccnc ) Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0806: Calibrate The Elbow Aug 06, 2023

Balancing Stand Calibration - How do you know that it's as good as one costing 5X? We're gathering data. Hygrometer Calibration - How to get 2% accuracy for $30, and keep your filament dry. Bambu Calibration - They release new software and firmware, and we get a calibration gift. ErgoWedge - Fighting to Save The Elbow... and attached stuff. Grinding Red Alert.... and more..... Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0730: Getting Balanced... Finally Jul 30, 2023

Getting Balanced... Finally. I release the KP Model BS-8 Balancing Stand, so you can stop yelling. Packaging is not Trivial - How you ship something is surprisingly important. Duh! Process Reliability Beats Speed - I learn something about turning off a cool feature in my Bambu X1C Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0723: Does Anybody Really Know the RH? Jul 23, 2023

Does Anybody Really Know the RH? - A person with two watches never knows the time. We discuss the $3 hygrometer, and dealing with its inaccuracies. There's a possible product development in there. Downhole Deburring - some new tools for an old problem. The NOGA RC1000, RC2000, and RC2200. A Better Balancer Thanks to My Wife - She moved it off the table, and I saw something. This led to a design improvement for the new BS-8. And a discussion about what you do with customers of an existing product you just improved. [ERRATA: when I said "Nova Scotia", I meant "Newfoundland". Sorry.] Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0716: The Required Epiphany Jul 16, 2023

Achieving Balance: The Required Epiphany! What is the WLPC and how does it apply to Balancing Stands? You're going to like the answer. Polymer Hydrolysis: perhaps harder than we thought, but still important. Calibrated Hygrometers? My fellow engineer takes our three-dollar hygrometers for a spin down calibration lane. We are only slightly surprised. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0709: Shipping, Drying and Heating Jul 09, 2023

Shipping: C'mon CANADA! Sheesh... Balancing Stand Update: I had the Required Epiphany! And it is good. Bambu PETG Basic: I get it, I try it, I have some things to say about it. Filament Drying Chemistry: It's not a sponge, there is some chemistry involved, and we need to grok it. All about HEAT: Conductivity vs. Capacity Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0625: A Tale of Two Lids Jun 26, 2023

A Tale of Two Lids: Should I change from PETG to PLA+ Minimize Inventory: Superb 3DP reliability means minimum inventory... with a good spreadsheet PVA: Release Stick, NOT Glue Stick RSI: Maximize Automation. Seriously, don't wear yourself out. NOTE: My laser is a "fiber laser" (short wavelength), NOT a CO2 laser (long wavelength) which would interact with the plastic MUCH more. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0618: Of Damping and Dampness Jun 19, 2023

Two is One. One is None. - Redundancy is your friend Of Damping and Dampness - Most problems go away with dry filament and chicken soup. Desiccant? Yes We Can - An end-to-end system for repeatable, predictable 3DP results. NOTE: When I talk about using IPA (isopropyl alcohol), I am referring to 99% IPA. Not 91%, and certainly not 70% as may be found in the local shop. Links for products/designs mentioned are at pfg.gg/links Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0611: Going Mobile! A Special Edition Jun 11, 2023

I can't be in the office, so this is a mobile edition of PFG Live. Same incisive analysis. Fewer snacks. Bambu update. 5000 Mile Lightning Report. Damping the Grinding. And more... Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0604: Does the Bambu X1C Solve a Problem? Jun 04, 2023

Special Guests: Robin Renzetti ( @ROBRENZ , IG: robinrenzetti), and Bill Schongar of MakeIt Labs, Nashua NH. Does the Bambu X1C Solve a Problem - well, it sorta does. But I have questions. Why I'm not selling my PRUSAs... yet. ProtoMax Water Jet... My makerspace got one, and I got my hands on it. But, we run out of time... a future episode will dive (!) into it. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0528: 3DP Abhors a Vacuum May 28, 2023

3DP Abhors a Vacuum: A PRUSA goes down for repair, and the territory is primed for change. Damping Followers: The Benelli Pin project raises some interesting questions. Why Verified?: Spencer goes Verified on Instagram - Why he did it, and why you might shouldn't. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0521: Are 3D Printers a Necessity Now? May 21, 2023

Special Guest: John Saunders of Saunders Machine Works and @nyccnc ! Are 3D Printers a Necessity Now?: We make the case. We go deeep on the Bambu printer, and John's recent experience with his. Does he make Spencer get out the checkbook? Failure is Noisy Progress: Changing the plan on the Benelli Pin Project. We need damping. Sowing the Seeds of ... Discord: The KP Discord server is up. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0507: Aaron's New Majestic Tool May 07, 2023

Spencer Grinding Benelli pins: How am I going to hold it? Aaron Walla's new Parker Majestic grinder and Adam Demuth's vast experience... together! Generally starting trouble and watching it unfold. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0430: 3D Printing for Machinists Apr 30, 2023

3D Printing for Machinists: It's another tool you need. Really. Balancing: Important for your car tires... REALLY important for your grinding wheels. Heat-Treat Experiment: When the data sheets are approximate. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0423: Contradictory Heat-Treating Apr 23, 2023

Unwanted Growth: Oxide, Martensite or Both? (Lathe operator runs and hides...) Holding Lasagna Noodles... for grinding. Contradictory Heat-Treating: The datasheets disagree with each other, and the research. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0416: Boring Tools Aren't Apr 17, 2023

Boring Tools Aren't. My pins are too strong? Plane, Line, Point. PRUSA Mk4 or Bambu? The audio portion of this video is published as a podcast! Search for "PFG Live" on your favorite podcatcher. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0402: Insufficient Adequacy Apr 02, 2023

In which we discuss using coolant on grinders. Spencer reviews three generations of grinders and what coolant solutions were used on each. We report a new country for PFG Stones exports, and a new company in the US. We followup on the toolpost improvements, including a calculation of how much power is delivered into the cut using the cutoff tool on titanium as show in a recent video. We discuss the next step in the Entirely Adequate toolpost modifications. The Bambu 3D printer has arrived on the market with some fanfare, and we discuss the reports we are hearing about it. We learn from Kevin that a new PRUSA has also been announced.

PFG Live 2023-0326: Spindles Shall, Toolposts Shant Mar 26, 2023

The audio portion of the PFG Live! from YouTube. The weekly exploration of machining, toolmaking and engineering. Brought to you by Kinetic Precision, makers of PFG Stones (tm). Learn more at PFGStones.com. Watch Wood Creek Workshop for Yuchol's PFG Stone shoutout: @woodscreekworkshop9939 Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0319: Titanium Tutelage Mar 19, 2023

Watch Wood Creek Workshop for Yuchol's PFG Stone shoutout: @woodscreekworkshop9939

Follow me on Instagram at "spencer_webb_nh".

("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0312: Cylinders are Square Mar 12, 2023

Cylinders are Square? Measure the Right Thing. Expensive Tolerance.

PFG Live 2023-0226: Lapping Under Control Feb 26, 2023

Lapping Under Control? Feedback vs. Feedbag. Better Resin Printing on Form 3+. 1000 Electric Miles! All this and more... NOZ information at: https://www.kineticprecision.com/noz or NOZ.GG PFG Stone information at: https://www.kineticprecision.com/all-about-pfg-stones1 or PFG.GG All my links at: https://www.kineticprecision.com/links or PFG.GG/links I love my Kaeser compressor: https://us.kaeser.com/ #notsponsored Thanks again to Tom Lipton @oxtoolco , Robin Renzetti @ROBRENZ , and Adam Balogh @machinetechvideoblog801 for being such good teachers. Follow me on Instagram at "spencer_webb_nh". ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0219: Lipton. Renzetti. Strap in. Feb 19, 2023

Machining, toolmaking, precision. Can you afford not to watch this? Yah, we didn't think so. We went long, very long, but it was worth it. Many thanks to Tom and Robin for sharing their wisdom and good humor. Here are the links to the interviews on Within Tolerance Podcast: Episode 71 - Robin Renzetti: https://podcasts.apple.com/us/podcast/within-tolerance-episode-71-robin-renzetti/id1474857063?i=1000497233902 Episode 35 - Tom Lipton: https://podcasts.apple.com/us/podcast/within-tolerance-episode-35-tom-lipton/id1474857063?i=1000466789305 Episode 97 - Spencer Webb: https://podcasts.apple.com/us/podcast/within-tolerance-episode-97-spencer-webb/id1474857063?i=1000525186451 ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0212: Portable Heat Treating? Feb 13, 2023

Am I really heat-treating at 65 MPH? Can a shop be too organized? How to counteract the attractive force of a surface plate? These answers and more... Mentions: @KnifeSteelNerds - A great education on tool steels and treatments @AdamBrunette - Thanks, buddy! Adam is building a HUGE 3D printer! @JohnGrimsmo - The knife man, knife myth, knife legend. @oxtoolco - Author, Teacher, Man of Mystery. @ROBRENZ - Toolmaker, teacher, Doctor of Precisionology. https://www.mcmaster.com/ - The Good Yellow Book https://www.ford.com/trucks/f150/f150-lightning/ - The Ford Lightning @ford https://www.americanrotary.com/product-category/hot-shot-ovens/ - Hot Shot Ovens @Americanrotary Links for the bakers' racks and everything else I buy are in my links page: pfg.gg/links (or https://www.kineticprecision.com/links) ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0205: Lapping Up Electrons Feb 06, 2023

In which we talk about Spencer's new Ford F-150 Lightning EV. We discuss some details of Lapping Disease, and lament the lack of progress this past week. And we announce.... On February 19th we will have TWO simultaneous guests on the PFG Live, none other than Tom Lipton (@oxtoolco) and Robin Renzetti (@robrenz). Spencer's job is to start trouble. See ya there. For all the links to stuff I use: https://PFG.GG/links The Monochromatic Rabbit Hole: https://kineticprecision.com/monochromatic McMaster-Carr: https://www.mcmaster.com/ ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0129: The Eye of Flatosity Jan 30, 2023

In which Spencer takes the plunge and starts lapping, enjoys some initial success followed by frustration. And then followed by an epiphany, which led to Flatosity. And then screws it up. Excellent input from the Chat Room, much to learn there. How do you start controlling flattness at the tens-of-nanometers scale? Join us on the journey. ...and don't call me Shirley. ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0122: Tom Lipton Jan 23, 2023

In which Tom Lipton catches us up on his shop developments, which include, but are not limited to: Lapping EDM (electronic dance music, or if you prefer, Electrical Discharge Machining) Carne Asada with marinated skirt steak. The Abernathy patent for lapping plates: https://patents.google.com/patent/US3287862A/en ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0115: Lapping with Adam Jan 16, 2023

Guest Adam Balogh joins us to discuss lapping and his exploits in telescope mirror making. We draw parallels (!) between lapping mirrors and lapping in precision machining. Much is learned. Things mentioned: Adam's Instagram: https://www.instagram.com/laneymachinetech/ ABLAP: https://ablap.com/ Cerium Oxide: https://en.wikipedia.org/wiki/Cerium(IV)_oxide Surplus Shed: https://www.surplusshed.com/ Zerodur: https://en.wikipedia.org/wiki/Zerodur Caswell Plating: https://caswellplating.com/ Telescope mirror blanks: http://www.telescopemirrorblanks.com/mirror_blanks.html Newport Glass: http://www.newportglass.com/angwcat.htm Advanced Glass: https://www.advancedglass.net/index.cfm?Page=Telescope-Mirror-Blanks The guy who did all the mirrors for John Dobson and the sidewalk astronomers: http://www.alcoat.net/ Majestic Coatings: http://www.majestic-coatings.com/ Spectrum Coatings: https://www.spectrum-coatings.com/ Observatories with telescope making workshops: https://chabotspace.org https://stellafane.org/ Source for the spray-on silvering solution for front surface mirrors: https://angelgilding.com/pump-spray-silver-kit.html Links to more stuff is at https://pfg.gg/links ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2023-0108: Cool Grinding, Hot Coolant Jan 09, 2023

Aaron Walla joins Spencer to discuss some new topics and follow-up on his search for a grinder in his home shop We talk coolant, thermal control of coolant, tools and toys. Follow Aaron on Instagram at "@walla.tool" Follow me on Instagram: "@spencer_webb_NH" 200-Watt magnet heater: https://amzn.to/3Xx4e38 800-Watt submerged heater: https://amzn.to/3QCku0y Temperature controller: https://amzn.to/3IJDxEv Lutron Caseta remote controlled outlet: https://amzn.to/3H50l0j Qualichem 250C data sheet: http://backend.qualichem.com/product_docs/df183_Xtreme%20Cut%20250C%20(1.12.15).pds.pdf ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2022-1218: Buying a new Surface Grinder Dec 19, 2022

With guest Aaron Walla of Walla Tool (@walla.tool on IG), in which we discuss choosing and purchasing a surface grinder to fit the requirements of the shop. And offer Aaron Walla unwanted advice to "help" him with his decision. And the usual stuff. (Apologies for the technical quality of this live production. I was troubleshooting issues right up to launch time, and decided to proceed with lower video quality rather than delay. I vow to solve these issues for the next one. -SW) Follow me on Instagram: "@spencer_webb_NH" ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2022-1211: Thermal Battleaxes Dec 12, 2022

In which we report on the effectiveness of heating the coolant to make up for winter. Thermal growth in the grinding is calculated. The supply chain is repaired. The Hive-Mind helps design battleaxes for me, per the request of conjette.art. Really. Follow me on Instagram: "@spencer_webb_NH" 800-Watt submerged heater: https://amzn.to/3QCku0y Temperature controller: https://amzn.to/3IJDxEv ("PFG Stones" is a trademark of Kinetic Precision)

PFG Live 2022-1204: Thermal Control? Dec 05, 2022

The YT switchover. Mom's 167 boxes. Making a coolant cozy. The surprising thermal mass of 30 gallons of coolant. Bubbler Stone: https://www.amazon.com/gp/product/B08B3MX4BP/ Oil Pan Heater: https://www.amazon.com/gp/product/B0076DUV2Q/ Heater Controller: https://www.amazon.com/gp/product/B01486LZ50/ Follow me on Instagram: "@spencer_webb_NH" ("PFG Stones" is a trademark of Kinetic Precision)

PFG IG Live 2022-0501: Stefan Gotteswinter May 02, 2022

Special Guest: Stefan Gotteswinter (@stefan_gtwr on IG, Stefan Gotteswinter on YT). Precision Cordless Drill Balancing. Side-saddle Grinding. What a pair of stones! Learning to be, and not to be precise. Legal beer. 0:00 Welcome and housekeeping 4:00 Stefan Gotteswinter joins 5:25 Has Stefan been following Spencer's interest in lapping? 5:50 Stefan's recent video about drilling on the lathe using the carriage instead of the tailstock. 8:00 Giving away a McMaster-Carr catalog 11:05 Any tips on making Annular Cutters 12:30 Favorite or preferred brand of lapping compound? 15:30 Follow up on annular cutter, to use on a lathe 17:00 Silver Steel is a term used in the UK for Drill Rod; it's Silberstahl in German 17:55 What German Ginger Beer does Stefan recommend? 18:55 If Ginger Beer is illegal in Germany, how do you Justify Radler? 20:30 What is the smallest part Stefan has made in his shop? 21:18 How difficult is it for Stefan to get parts Nitrided 22:13 If you had Elon Musk's money, which Mill or Lathe do you buy? 23:50 What is your favorite way to "Clock Out" a headstock? 26:55 For M1.2 Tapped hole what type of Tap do you recommend? 28:15 Adam B says he has a way to align a Headstock with the Cross Slide using a Special Tool that has a Gauge Ball on it. Details to Follow. 29:10 How to prevent M3 Taps breaking in stainless steel on a CNC lathe? 34:20 Marvin Groeb @marvgro recommends Zirconia nanoparticles as a lubricant 30:45 How to improve the rigidity between the head and vertical column of an RF-45 32:20 Do you use IPA (isopropyl alcohol) on steel in the CNC router? How do you prevent it catching fire? 35:05 Stefan is asked for his opinion on Adam Demuth's (@adamthemachinist) 3D printed Vee blocks 36:55 Stefan is asked for drawings of his addendum to Robin Renzetti's D-Bit Grinder modifications 38:05 Adam B (@Laneymachinetech) ask for Stefan's comments on Cylindrical Grinding and Lapping to optimize geometry and surface finish. 42:05 Spencer asks Stefan about his new Grinder 51:30 What do people need to learn to do more precise work. 53:50 Stefan is asked to regrind precision ground stones that he mad for a customer. 57:45 When grinding a radius on the D-Bit, how do you indicate the offset of the work? 59:10 What is the spindle speed of the D-Bit? 59:50 What projects does Stefan most enjoy? 1:01:30 What is missing from Stefan's tool collection?

PFG Live 2022-0424: Adam Balogh - Optical Measurements for Peanuts Apr 25, 2022

Flat is where it’s at. Adam B. From Laney Machine Tech joins us, and we nerd out. Optical flats, monochromatic light sources, and how to get set up to make measurements for peanuts.

PFG Live 2022-0410: Lapping With Robin Renzetti Apr 11, 2022

Forget three plates. Top is concave, bottom is convex. Tumbled? Charged?

PFG Live 2022-0306: Marv Groeb Mar 07, 2022

PFG Stone Bevel progress update, melting of the snow, awesome solar electric days. NOZ update. Special guest @marvgro from Kern!!

PFG IG Live 2022-0227: Adam Demuth Feb 28, 2022

Solar panel opinions. Balancing news, brief bevel update (excuses). Great Guest: Adam Demuth. T-shirt updates with Conjette. Art meets Grinding.