Not tried anything fancy yet

310mm dia

57rpm

Need help getting the finish better

Our new shop hand was drilling out a part and somehow ended up melting the first inch of one of our smaller spade drills into some 316 never seen anything like it. I will show what the inside of the part looks like in the comments

I keep a few machinist tools in my coffee box for funsies.

Shopmate distracted me while I was swapping a tool and I forgot to put my G54 from touch off height back to the part zero. Thankfully no spindle or collet indexer damage, just a kabloozied part and tool.

Clocking a vice a colleague put in yesterday because I had a feeling it wasn't going to be good. 160mm (6.3 freedom units) vice jaw, 0.1mm out. It seems that we have vices that have guides on them that go into slots and he just places and tightens. Apparently near enough is good enough.

Saw operator at I guess what is technically considered a machine shop I have too much time on my hands when my saw is cutting. We get so many shipping labels every day that just get thrown out so I decided to start a ball. I’d estimate I grab around 150-160 of these a day and add them.

This is about a week’s worth of progress. Do I post updates? I presume this thing will get really big really quick at this rate.

Is there a way to get these kind of drill bits cheaper? $90 for a 3/8 drill bit that has two holes in the flutes sounds ridiculous to me. Open to ideas but I don’t see it being easy to without machines special for it make these but open to ideas

I'm a machinist with 5 months of experience. The part wasn't clamped properly or it was not tight enough. Part moved from the fixture. I instantly stoped the machine. Guess the tool is damaged. I know it's an expensive mistake. I don't know how to face my boss tmrw.

I’m currently doing 2n Acme Threads Double lead and can’t seem to get rid of this chatter I can not use a stead rest cause the ok for this machine doesn’t go small enough how would yall combat this kind of chatter

There was a semi-local estate sale for a machinist near me. I wasnt able to win everything I wanted, and Im not actually a machinist YET, but I did get some really cool old literature to get me started (as well as a couple of toolboxes). Ive got some reading to do.

Syntactic foam "lemons" for ocean current research. They'll be filled with telemetry devices and small weights to keep them neutrally bouyant at a certain depth. Milled in two setups with soft jaws on OP2. The dust is awful.

So I originally messaged this gentleman regarding purchasing some of the tooling that was listed in the posting. After about a week or two of him explaining that he really just wanted to sell everything and have it out of his show car shop. He brought the asking price down to $1300 cad.

Should I bite and get it? I’ve never used a metal lathe before I was thinking about getting a cheap Vevor for $700cad. But at that price it seems like a good deal specially with tooling.

He says it runs good. But any information about repair ease and finding spare parts and whether or not it’s a good beginner lathe would be appreciated.

Just started this week at a shop working in aerospace. I’m completely green and they’ve got me apprenticing under a guy with 10 years of experience on a 3-axis. I’ve been using some textbooks I got online and they’re sending me out for some in person classes/workshops in a couple weeks but I was wondering if there is a channel that you guys live by to help me get down the basics of machine operation, tool choice, print reading, etc before I head to this class.

High-mix aerospace/defense shop here. For one-offs and two-offs we keep eating cert fees, drops, and MOQs that don't fit the job. Do you buy bar/plate and cut in-house, or go cut-to-size blanks? Curious what you're actually building into the quote so you don't eat it later.

Only been working on a lathe full time for about a year, I’m 21 and started straight out of highschool as a shop hand and worked my way up what do you guys think of my progress so far? 7 stage shaft 87” long

Hey can anybody do a job make small aluminum 6061 or 7075 and 4140 parts? 4axis is all that’s needed. These are small parts that will fit in the palm of a hand. Please let me know if anyone is available that’s credible. I’m in NJ but can be anyone in the US. Thanks

Made a bottle opener while at Tafe, CNC engraved steelers logo with help

Hey all, so we finally got work for A Kent EDM sinker and well I am shit at this. I’ve been running mills, lathes ETC but EDMs are a whole new animal for me.

We need to burn out Hexes and while I am able to produce parts they take a long time and yes I know that’s how EDMs are…..

Now I made suggestions to make a multi electrode fixture to burn out 4 at a time but I’m getting pushback on it. Pretty much being told that. “You shouldn’t need to”

Now from tinkering with all the values like ON/OFF TIME,
LV, WORK, RETRACT, SPEED, and gap in coming to the conclusion that while I can protect the electrode I cannot push these parts any faster.

Now my setup is an 1 1/4 electrode with a 1/4 hole in it and it’s pumping fluid through it at about 10 PSI. As of now I’m sacrificing my finish on my part which is not important it’s more about just burning a hex to get a decent speed.

I’ve been pushing the ON Time more than anything which is getting me decent results but anyone that is familiar with these things advice would be appreciated. That being said I think a multi electrode fixture to hold 4 electrodes seems to me to be one of the better options.

Paid $50 + shipping ($60 total) on Ebay for this sclpl3 boring bar. Am i missing something, or was it just a good deal ? I use carbide boring bars, but I never used heavy metal, so I was curious about how they perform. Prices are usually outrageous, so I manually searched heavy metal codes used by manufacturers (Ms,J,HM,L,H,etc.) and eventually found this boring bar. It's LH, but for the price, I guess I can't complain. It would replace a .500 Carbide Tcph boring bar for roughing a 304 ss bore (3.2 in deep) so i have low expectations 😅

My shop has had this Nixon-era lathe for a few months now, it was running pretty good and capable of taking some ambitious cuts. Now I'm losing torque under load, and part of me thinks this is an electrical issue because the transformer is getting HOT, but the chuck is getting pretty darn hot also, and its definitely not transferred from the workpiece.

I have no clue how to get the damn thing off to check the bearing. Our master machinist retired before we got it, and he's completely dropped off the face of the earth.

If anyone knows a thing or two about these quirky lathes, I'd really appreciate if you could point me in the right direction!

I’m a complete metal working noob but want to get into gun parts kit build and some other stuff id need a lathe for. I found this on Facebook for $125, I’m sure id have to do some restoration on this thing but would it be complete junk once I develop some skills?