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I use a bunch of HSS, but my work is primarily hobby and prototyping work. Some of it could also be that American machinists tend to skew pretty old or are basically running on oral tradition, as evidenced by other elements of Practical Machinist*  *And capital taking the vast majority of manufacturing jobs abroad in the 70s.
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Feb 1, 2023 23:27
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Depends on the tradesman and engineer, too
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Feb 2, 2023 05:04
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After you’re done grinding, regular vacuuming this stuff up is fine though, right? Just getting to be a nervous nelly as I expand my home workshop which also is my WFH office.
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Feb 11, 2023 18:51
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ZincBoy posted:It is a terrible idea to do any significant metal grinding in a space you use for anything else. The dust gets everywhere and the sparks produced will ignite anything flammable. Noted! It’s really only for occasional deburring, thankfully. Just a tiny 4” disc. I’ll just take it outside when I really need to grind. Thanks for saving me a project to hook it up to dust collection
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Feb 15, 2023 00:01
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Metal additive manufacturing is loving wild. I’ve played with a few Desktop Metal parts they were always garbage. I’ve gotten to do a few case studies with Velo3D parts and that stuff is very cool. Always needs finish machining and it takes forever, but you can do some crazy stuff with it. You can get super super clever about it, I’m curious that I haven’t seen foundries pick them up. But I guess polymer additive can do a lot of what they’d need most. E: has anyone played with Markforged metal parts? I’m pretty curious, but the last time I was at a trade show with one of their booths it was a shitshow and I didn’t want to stick around for something that was a fun visit, not a work visit.
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Feb 21, 2023 05:57
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tylertfb posted:I kept ties with the dental printing place after I moved on, and had them print the odd part for me that couldn’t be machined (I had to make a pair of grippers for a robot to pick up DIMM chips that needed square inside corners and a wierd lead-in that I couldn’t do with my setup, etc). My riding buddy and erstwhile forum poster Oz Fox made himself a road bike frame from titanium tubes connected by 3D printed titanium lugs /head tube/bottom bracket. It’s ~almost~ straight and only about 2x as expensive as a nice custom welded TI frame would be! I think he had Markforged do it. Oh that rules! I imagine the tubes are the primary source of wobble of titanium ones are anything like all other tubes.
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Feb 21, 2023 15:58
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CarForumPoster posted:He said wearing oily coveralls and smoking a cigarette while sweating over his Bridgeport Mom said you’re not allowed to make fun of me on the internet anymore >=(
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Mar 15, 2023 13:12
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FWIW people look at me like I’m the weirdo when I wear a respirator while running MDF/wood jobs so there’s plenty of unsafe folks out there still!
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Mar 20, 2023 15:27
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Does air assist on a lathe get you as much mileage as it does on mills? Could be a decent compromise.
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Apr 10, 2023 23:50
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Yooper posted:Has anyone here done a Stuart unmachined kit before? I'm looking at doing one of these with the kiddo, https://www.stuartmodels.com/product/stuart-s50-unmachined/ and I'm curious how everything arrives and what the plans look like. I don’t know if it’s exactly the same, but it looks an awful lot like the Blondihacks engine from this playlist. No clue if they’re the same size or scale but this might give you an idea of what you’re getting into: https://youtube.com/playlist?list=PLY67-4BrEae-XWDD_Bd8Fj823Jarqofbw
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Apr 30, 2023 15:52
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Dance Officer posted:Does anyone in this thread know anything about cad/cam and cnc machining in orthopedics? Having finished machinist school recently I've started to think about how I want to develop professionally and what I'd like to end up doing. I like machining but I'd like to focus a bit more on helping and interacting with people, and I'd like to end up doing complex and challenging machining work. I’m a CAM specialist at my SOLIDWORKS reseller; I know some of my colleagues were in orthopedic design but that was back in the 80s I think. Let me know if I can help, I’ve been around the block on a handful of CAM packages and am happy to help if I can!
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Jun 18, 2023 14:49
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Dance Officer posted:I currently work at a job shop (it was an apprenticeship thing where I work 3 days and go to school for 2), and while I have a lot left to learn there I'm probably going to hit a wall at some point. We make a lot of pretty difficult but not really difficult parts, usually a lot of repeat products in small batches as well. The shop isn't very modern in terms of machines, the people doing the programming, the level of automation involved or the tooling used. Only half joking, join up with a MasterCAM reseller or something and jump ship to a customer. What software package have you worked with? Oftentimes there are certifications for particular software packages and using that in my keywords is how I found my current job. Actual machinist school + software certification + apprenticeship is probably pretty tempting to anyone looking for it.
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Jun 18, 2023 23:25
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Karia posted:I'm curious, what do you think would need to be included to build a tool maker training curriculum to try to get some younger people in? Most job shops aren't going to have the resources/foresight to train in-house, so having an accreditation available seems like the right option. Obviously a fresh graduate would need a lot of on-the-job practice to get really good, it's no replacement for experience. But do you think there's some way to get people the right skillset to at least get started more quickly? Is it even possible to get the required combination of manufacturing/engineering/systems thinking without a decade+ of experience? Or do you really just need to have the right person who's capable of spanning all those different fields? First semester is learning every version of “the old ball bearing trick.” First time I used trig IRL I realized how bad my math curricula were.
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Jun 19, 2023 14:18
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leper khan posted:Is there something obvious I'm missing i could do to keep the gear in place? Is the join metal on plastic? If it’s metal on metal you’ve got loads of options from Loctite. If not, you might be stuck with hitting the drill press and hand tap to get a set screw in there. quote:And if I want/need to get a brass replacement, where do I go to get that fabricated? The answer varies on whether it’s a custom gear or not. If you can figure out the diameter and number of teeth that’ll answer whether you can get something off the shelf from McMaster or need to get it made elsewhere. On that note, has anyone here used a fiber laser cut or water jet cut gear? If the material is thin enough and it’s an uncommon gear, Send Cut Send could probably make you one pretty cheap. I just don’t know if they’re too sloppy coming off a hot process like lasers for precision use. Plenty of folks here know more than me so I’m just spitballing with where I’d start.
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Jun 20, 2023 21:21
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Anyone have a favorite enamel spray paint and primer? I’m gonna strip and repaint this vintage coffee grinder. I haven’t taken it apart to figure it out if the body is like cast zinc or sheet metal, if that matters. Definitely keeping it black and white.
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Jul 9, 2023 00:25
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Two votes works for me, thanks friends!
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Jul 9, 2023 05:03
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Nerobro posted:Everything is Jazz if your mind is open enough. It’s more about the joins you don’t make.
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Jul 13, 2023 15:37
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Shop aprons rule! I forgot to take my impact prescription glasses off yesterday so I’ve been wearing my pair with the little side protection wings for a day. Protective gear is cool.
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Jul 22, 2023 14:28
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Kaiser Schnitzel posted:Side shields on glasses say 'I don't gently caress, but I can rebuild modern society if needed' NewFatSpouse says we need water based lube because it’s not “that kind” of tap magic.
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Jul 22, 2023 17:27
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Yooper posted:Anyone going to FabTech in Chicago? Aiming for it, work should get me in for free
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Aug 22, 2023 15:49
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Kaiser Schnitzel posted:Is SendCutSend usually reasonably competitive on pricing for basic 'piece of plate with some holes in it' stuff or is it worth shopping around? They will do the 9"x9" 1/4" plate with a 1" hole in the middle I need for like $50, and it doesn't seem worth bothering my local waterjet shop about it to save $5 but might be worth it to save $25. My experience has been that it’s competitive, but adding bending and finishing starts to really make it less appealing, but also  it’s all coming from one place.
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Oct 17, 2023 04:18
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Kinda related, can you use a rotary broach in a drill press? I’ve only ever seen them on lathes and mills, but intuitively I can’t really see why not.
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Dec 12, 2023 02:51
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Sagebrush posted:why in god's name does the thickness of a given gauge of sheet metal depend on what kind of metal it is Because there is a just God who punishes Americans for using imperial.
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Jan 2, 2024 01:40
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That was my reaction when I saw letter sizes in imperial drill charts for the first time.
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Jan 2, 2024 03:47
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Vevor make pretty decent kit, or they put their name on alright stuff at least. Luckily we Americans are just as capable of making overpriced garbage as anyone in any country 
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Jan 23, 2024 00:28
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Oh hell yeah because I have a bunch of metric tooling and those various drawers are gonna need new labels.
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Jan 23, 2024 02:22
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Hadlock posted:I've been seeing a lot of "Wen" branded stuff, seems... Ok? Maybe half of quarter step down from Bauer Wen’s benchtop drill presses (and likely some other stuff I haven’t noticed) are pit mainstays in combat robotics. A buddy of mine loves his. The only reason I don’t have one is because I wanted grizzly green in my shop.
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Jan 26, 2024 14:12
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meowmeowmeowmeow posted:The people who think Titan is cool and good, guy is a massive tool. I hate that dude so goddamn much. He’s completely unavoidable for 3DEXPERIENCE WORLD.
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Feb 17, 2024 04:23
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Yooper posted:On the plus side we're seeing some some folks do a "pricing scorecard" where they balance actual $$$ price, with modifiers for quality and delivery. So suddenly that $2 part looks expensive compared to our $3 part. I haven’t seen this methodology before. Do you basically get someone’s part or drawings and say “doing it right and this week costs $X; if you have only 2 critical callouts it costs $X-Y, if you can receive it next month it costs $X-Z, if you can do both it costs $X-Y-Z”?
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Feb 17, 2024 15:03
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Ohh gotcha that’s the opposite side of the equation I was thinking of. Also I was going to say that it sounds dumb as hell that it isn’t standard but I’ve interacted with purchasers before so
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Feb 17, 2024 20:02
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| # ¿ May 13, 2024 11:19 |
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That’s pretty fucken dope
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Mar 15, 2024 07:19
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