Ask machining questions, post machining failures.CAD CAM talkSpeeds and feeds guessingG-Code, M-Code, Bro-CodeFanuc vs HaasBitch about payIgnore SiegWhine about spline shaftsButton pushers who think they're machinistsPrevious: >>2849288
giwtwm
>>2872376The fact that her hair isn't tied up induces rage in me.I'm probably going to be working in an EDM shop soon, so if anyone has info on machining graphite or using jig and surface grinders, I'd appreciate it.
>>2872376There is more than fanuc and haas, Mitsubishi also is in the game and siemans is like top dawg Fanuc and haas are beta boy tier
>>2872601>machining graphiteI've done a little machining of it over the years, it's dirty and abrasive as hell on tooling, it does machine nice though
>2872674>Fanuc and haas are beta boy tier
>>2872601>>2872690I live in an overwhelmingly agricultural area and over the years I have found a few large (like 1.25" diameter) chunks of graphite 6-8 inches long. Some of them just turned up on the farm in random places (usually where one of several old homestead used to be located.) One of them even looked like a 6 spline PTO shaft. WTF were they using them for? I know these fuckers weren't EDM machining!
>>2872674>siemans is like top dawgEvery Siemens controller I've ever used has been a giant piece of shit that doesn't work properly.>Fanuc and haas are beta boy tierBig talk from someone with shit experience that has to dig through a regrind box for tools.
>>2872779>implying those were reground They were dull just less dull than the shit we had a available in the ER collets
picked this up to learn on what should I expect?
>>2872881Expect to disassemble a lot of shit and clean it up...
>>2872881Did you pull that out of the ocean?
>>2872888out of someones yard
>>2872889I see a lot of penetrating oil and scotchbrite in your future, good luck.
>>2872881Our work had a lathe in that condition. It wasn’t worth repair and we would do Mickey Mouse shit like bypassing relays/step down transformers and hard wiring it to a 480v to get it to run a bit longer
>>2872881>>2872889Did the guy who sold/gave you that lathe live in a pineapple shaped house by any chance?Better hope the evaporust pool isn't closed.
>>2873294it was under a tarp its mostly surface rustI also cant find a manual for it online sharp still makes several 1640 models but they look different
>>2873420>I also cant find a manual for it onlineYou don't really need them except for parts diagrams. Engine lathes all work 99% the same, couple handles for RPM, couple handles for feedrate/TPI, forward/reverse for the feed, handle to activate feed or if you're lucky, two, one to throw the half nut for threading. Only time you're fucked is if the chart plaques are gone/scrubbed down.
>>2873420>manual Manuals are valuable worth several hundred dollars each, I use them all the time to look up manufacturer part numbers rather than pay machine builder up charges for work a lot It’s not a Nintendo switch they aren’t just going to give you manuals for free
>>2873490>It’s not a Nintendo switch they aren’t just going to give you manuals for freeThey literally do though. Any half reputable machine builder will email you a PDF manual if they have it, if you give them a serial number.
>>2873294>Better hope the evaporust pool isn't closed.This is supposed to be a recipe for evaporust... Haven't tried it myself yet, but I did make this picture in paint and saved it to my computer for future reference... Should probably print it out, laminate it, and stick it on a wall in the shop sometime so I can find it easily when I do inevitably need it.
>>2873494The only ones that are free are like fanuc operator control books The electrical diags, parts codes and all the good shit costs money. We paid dmg mori for books just the other day
>>2873498That's basically saying "use partially neutralized citric acid". Which is functionally just a weak acid. Could get away with using concentrated vinegar, as it would probably lead to a comparable pH.
>>2873517Why do you just constantly make shit up?
>>2873545Costs money to download it dumbfuck Next you’re going to say cnc parts are cheap when it says “call us for price quote” on a switchIt’s literally my job to call these places and pay them for books when machines go down and we dk t have them for whatever reason
>>2873580It's a free account, retard.
>>2873545This is in the OP, you will save yourself a lot of frustration by following it.
>>2873627Download it then
>>2873498IIRC weak acids can be harmful because while they'll remove rust, once the rust is gone they'll remove metals. If you forget to fish a small spring out a couple weeks later it might be gone.https://youtu.be/fVYZmeReKKY?si=nZYW16w3bq6aggXW This Italian gunsmith claims his mixture is a cheating agent, similar to evaporust, which will remove rust but not metal.I should try this out, I've always been hesitant to bathe cast Iron tools, since cast iron is supposed to be slightly porous I worry it might absorb acids and become brittle over time or something.
Did any of you guys learn CAD on your own time or was it something you went to school for or learned on the job?
>>2873912I learned CAD in my free time. In my experience, the basic principles of how to use CAD are actually pretty easy, it's mostly just learning how to use your software. I was able to make reasonably complex models after about a week of watching tutorials and messing around in my afternoons.
>>2873912I learned it in college however, I am not an engineer. CAD is less than 1% of my job. I’m mostly on CAM software, editing code, rewriting some ducked up bullshit that some kid before me wrote, or setting up machines And since newbie kids don’t want to enter this trade for minimum wage when McDonald’s pays more I have to operate the parts I programmed Back in the day there would be 2-3 guys in my position and like 10 button pressing part loading operators
>get associates degree of arts>enjoy the machining and welding course I took>pursue a career in machining>start a new job a month ago>machining 2000lb parts into pieces of an excavator >create the cad models and programs too>people ask me all the time if I went to school for machining >tell them I have an AA degree>they look at me like I'm a faggot
>>2874321I have a Bachelors of Arts and people in machine shops go “oh shut why are you here” Ugh because literally everyone under 40 has one and it’s basically a high school diploma now???
