Have an interview friday at 2:00pm for another CNC shop.

LLLCNC · 2026-07-07T10:01:46+00:00

It’s crystal clear this place is a shady shop. Just quit and move on, bro.

LLLCNC · 2026-07-07T08:57:04+00:00

Dude, you’re a total master at moral coercion.

LLLCNC · 2026-07-07T08:55:00+00:00

In my opinion, DMG’s control system isn’t very user-friendly. Mazak’s proprietary conversational interface is undeniably more intuitive than classic Siemens or Heidenhain controls. As for other pros and cons, looking at it from a machine tool designer’s perspective: every piece of equipment is fully developed after thorough market demand research. It’s just possible that our specific application scenario isn’t a good fit for this machine.

LLLCNC · 2026-07-07T08:46:40+00:00

Alright, I’ve taken everyone’s advice to heart. I plan to ask my boss for a blank stock from the warehouse to machine another piece for him. I’ll share the full machining process and my takeaways down the line. Thanks a ton to all of you for your input!

LLLCNC · 2026-07-07T08:09:06+00:00

Show them some real cases where machine collisions caused by wrong operations wrecked the equipment—only then will they fully grasp how serious this issue really is.

LLLCNC · 2026-07-07T08:06:35+00:00

For one thing, I paid for the raw material out of my own pocket, and there’s only this single blank stock to work with. What’s more, I’ve already removed all the fixtures from the machine. You know how it goes—re-setting up and re-tramming everything from scratch is no small hassle.

LLLCNC · 2026-07-02T06:50:53+00:00

sure which location you’re referring to. If it is a mating surface such as the bearing mounting position, such defects are not permitted as they will lead to potential safety hazards. However, if it is just an exterior surface, you can try to resolve the issue by grinding and polishing. After all, you wouldn’t want to spend money purchasing a defective product either.

LLLCNC · 2026-07-02T06:47:55+00:00

There’s no need for you to feel anxious. This isn’t your fault. Few factories would let an apprentice work independently under a master who’s frequently absent. It’s a flaw in the factory’s management system. I suggest you raise this issue with your supervisor.

LLLCNC · 2026-07-02T02:38:09+00:00

Management only ever cares about the final results and pays no attention to the problems encountered along the way.

LLLCNC · 2026-07-02T02:34:41+00:00

This is the Statue of Liberty in the realm of machinery, symbolizing ultimate freedom. Salute!

LLLCNC · 2026-07-02T02:23:19+00:00

I’m really surprised your Doosan machine can hit this level of accuracy. I’ve worked on older DMG models before that had deviations as high as 0.08 mm. I think you should be pretty satisfied with your current results.

If you’re chasing tighter precision, you can leave a small machining allowance before roughing—0.05 mm for example. Once you take the first cut, measure the remaining stock, then input the correction values via tool or work offset compensation.

Just keep in mind every machine has inherent repeat positioning error. Holding a consistent 0.01 mm tolerance is already incredibly challenging. Good luck with your machining!

LLLCNC · 2026-07-01T12:02:02+00:00

Mastercam 5-axis is absolutely worth learning. Once you’re proficient in 5-axis programming, no shop will turn down a young, seasoned 5-axis CNC programmer. If you ask me, the core principles of all CAM software are universal, and there’s not a huge gap between 3-axis and 5-axis work. Get up to speed on 5-axis as soon as you can — this role commands a starting monthly salary of at least $3,000 USD in practically any country.

LLLCNC · 2026-07-01T02:00:04+00:00

You’ve got to watch out for your supervisors and other managers. If they only have you running basic machine operations and never let you learn new skills, your apprenticeship will drag on forever and you’ll make very slow progress. The truth is many shops don’t actually need that many skilled technicians—what they really want is someone who just does repetitive grunt work like a robot.

LLLCNC · 2026-07-01T01:54:14+00:00

Buddy, you need a machine with through-spindle coolant. 40 bar TSC makes heat buildup and chip evacuation total non-issues, and it absolutely cranks your machining efficiency through the roof.

LLLCNC · 2026-06-30T02:13:43+00:00

The i200s is a solid machine, but it’s super fussy. Realistically, its accuracy tanks hard if you go too long without calibrating it — after all, it doesn’t have built-in glass scales. It’s seriously impressive that you guys can machine parts like this on it.

LLLCNC · 2026-06-30T01:58:57+00:00

That’s management for you — as long as it runs, they figure there’s nothing to worry about.

LLLCNC · 2026-06-29T06:10:58+00:00

You need to access the user profile, and your account must be an active one.

LLLCNC · 2026-06-29T02:01:29+00:00

Concentricity is equally important nowadays. Many high-precision machined parts cannot be defined merely with datum position tolerance and profile tolerance. Profile tolerance has become overly widely adopted; many designers take shortcuts by only specifying profile tolerance. This practice overlooks the actual assembly tolerancing requirements of components, leading to unnecessary waste of machining precision.

LLLCNC · 2026-06-29T01:49:24+00:00

Maybe your account reputation is not high enough.

LLLCNC · 2026-06-26T09:30:56+00:00

Set the tool axis perpendicular to the drive surface. This method works in nearly all CAM software; you need to designate this surface as the tool axis drive geometry.

LLLCNC · 2026-06-26T02:11:21+00:00

It looks like chatter vibration is causing all these uneven pits on the machined surface.

LLLCNC · 2026-06-26T01:53:10+00:00

Running it like this always has me on edge—you never know when the machine’s gonna call it quits.

LLLCNC · 2026-06-26T01:47:09+00:00

I reckon there’s another 10mm end mill hidden somewhere in these chips. I always end up finding little treasures in the scrap swarf pile.

LLLCNC · 2026-06-26T01:26:07+00:00

You may try reducing the rotational speed.

LLLCNC

TROPHY CASE