PFG Live

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)

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_...

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)

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...

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)

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)

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)

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)

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 th...

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)

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)

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

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.co...

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=...

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. @ROB...

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: ht...

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...

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)

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/...

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/3I...

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 v...

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 Sto...

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)

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...

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.