Machinists

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The current community is at [email protected]

Break out your Gerstner and get to work. Just remember to wash your hands before and after you go to the bathroom.

For anything tooling related, from belt grinders to Bridgeports to CNC programming.

The /c/ machinists code of conduct

Be polite. You don't have to like the way that someone else drills a hole, but there is absolutely no reason to personally attack, harass or insult another user. If you see this behavior taking place in a thread, please report it so that the moderation team can remove the offending posts.

Posting gory or gruesome pictures is totally fine. Be it machine gore or how you sliced your finger off on a bandsaw. Please tag the Post as NSFW. We are, by default an adult community but plenty of adults are squeamish. Keep the ER pics tagged guys.

If you are looking to post a job opening, our only requirement is that you post the salary or hourly wage of the job posting.___##

founded 1 year ago
MODERATORS
curiousPJ
listing: all - local
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Until further notice, We'll unify under.... (self.machinists)
submitted 7 months ago* (last edited 7 months ago) by curiousPJ to c/machinists
4 comments fedilink
 
 

[email protected]

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The Pucker Factor (www.youtube.com)
submitted 7 months ago by curiousPJ to c/machinists
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Understanding the effect of Temperature in machine geometry (www.youtube.com)
submitted 8 months ago by curiousPJ to c/machinists
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Makino makes very informative presentations

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When you know how but not why (www.youtube.com)
submitted 9 months ago by curiousPJ to c/machinists
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Madlad I say. Crazy.

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When you only need camshafts and lots of them (www.youtube.com)
submitted 9 months ago by curiousPJ to c/machinists
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Hyper-specialized machines to drive those cycles times down.

That 'ring' cutter is crazy mad. https://youtu.be/xPxpuna-GuM?t=278

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"precision predicates perfectionism" (self.machinists)
submitted 10 months ago* (last edited 10 months ago) by curiousPJ to c/machinists
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I love the statement because it's true but in context it's rather absurd...

context: Elon calls for crazy tight standard tolerance of 10 micron (±.0002") because if everything is perfect then the assembly will be perfect...

"All parts for this vehicle, whether internal or from suppliers, need to be designed and built to sub 10 micron accuracy.​"

https://www.thedrive.com/news/musk-demands-sub-10-micron-accuracy-for-tesla-cybertruck-build-quality-in-leaked-email

It's significantly easier hitting that tolerance on small parts... Try making the same lego that's bigger than a hand and you'll be going home tail tucked.

And I can't wait for the cost burden to skyrocket. Perfectly functional parts being thrown part for small dimensional imperfections. Entire cars being scrapped because thermal expansion wasn't accounted during manufacturing/assembly. And the opportunities for malicious compliance... oh jolly...

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If you're ever curious what the tool and die side looks like (i.ibb.co)
submitted 10 months ago by Wogi to c/machinists
5 comments fedilink
 
 

It looks like operators pointing sensors at the shoe instead of the part, pressing go and walking away.

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Never a good day when you chip a tooth. (lemmy.world)
submitted 11 months ago by curiousPJ to c/machinists
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cross-posted from: https://lemmy.world/post/2226387

Mount Meeker - MastCam-Z - Sol 864

Thankfully they have a bunch of spares drill bits...

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Shaft Metalizing (Abom79) (youtu.be)
submitted 11 months ago by [email protected] to c/machinists
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Part 1: https://youtu.be/X43SJakLTA8

Part 2: https://youtu.be/1j2qJozFWXA

In this two part video, I do a metalizing metal spray repair on a pinion shaft that belongs to Tom Lipton of Ox Tool Co. The shaft is out of a newly acquired Roll-In band saw that he is repairing, and this shaft is very expensive to replace. It has some wear along where it rides inside of some bronze bushings, so I use the metalizing technique to bring life back to this old shaft. In this one, I show setting the shaft up, masking, undercutting, and then the actual spray welding. \added card links to some of my older videos containing spray welding. It's worth a peek for all of my newer subscribers that havn't watch any of my older videos.

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Functional Prototype: Rotary Fixture Plate Dovetail Squaring Guides (youtu.be)
submitted 11 months ago by [email protected] to c/machinists
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"So the rotary fixture plate is done, right? WRONG. I’ve got just one more feature to add to it. A set of material squaring guides. I have an idea for a dovetail clamp that allows for adjustability, but is also self-squaring. I’ve never seen anything quite like it which could either be a good thing or a bad thing. It’s one of those weird things where the mechanism makes sense, but at the same time… doesn’t. So let’s find out, and build a functional prototype!"

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In The Loupe, Harvey Tools has a youtube series all about cutting tools (www.youtube.com)
submitted 11 months ago* (last edited 11 months ago) by curiousPJ to c/machinists
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It's very informative material in a digestible format and pacing.

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Everyone's got a variant of AlTIN/TiAlN...What else is new? (self.machinists)
submitted 1 year ago by curiousPJ to c/machinists
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Anything new these days have proprietary names and it's super frustrating tying to find comparisons between modern high performance endmill for crappy materials.

AlTiSiN, I hear is the new good stuff but every brand that seems to carry them obfuscate it like harvey's "tPlus" or Fullerton's "FC-20", SGS's Ti-Namite-M. So you don't really know what you're buying.

Then there's AlCrN. How good is that vs the other coatings?

What kinds of weird and wacky coatings have you found great success in your crappy materials?