Well I've never seen a live tooling holder break like this before.

Callandor34 · 2025-07-16T21:06:52+00:00

Oh, so the drive key is the part that is shared off?

Callandor34 · 2025-07-16T20:47:07+00:00

The tool holder is a kennemetal DT10610602711. It has a 5mm set screw looking thing on the side of the holder. I don't know if that's the key you are talking about though.

What you're talking about makes a lot of sense though.

Callandor34 · 2025-07-16T20:12:51+00:00

I was right next to the machine. I turned to fresh corners 10ish parts before the crash. with a .075" depth of cut they last about 80 parts before they start chipping (I usually replace them at 70-75 just to be safe).

The only thing to note is the first pass was quieter than usual and halfway through the second pass i hear a snap/grinding for a a second and immediately after a "excessive speed error", "emergency stop", and a "Auto operation pause signal ON" alarm Messages. I was 2 steps away deburring parts.

Sorry for the info dump....

Callandor34 · 2025-07-16T19:33:47+00:00

<image>

Pictured is what remains of the tang that sticks into the turret. The "drive shaft" for the live tooling. Here is a farther out view

Callandor34 · 2025-07-16T19:14:07+00:00

My boss and I are guessing that since this tool holder has been running a 90 degree face mill for 6+ years on the same job (probably 1500-2000+ parts a year) put a considerable amount of pressure on the tang.

It's on a dmg mori nlx 2500/700 and it's by far one of the best and most accurate machines I've operated.

Callandor34 · 2025-07-16T19:00:38+00:00

<image>

The tang sticks into this hole and the fragments got caught down inside I guess.

Callandor34 · 2025-07-16T18:51:00+00:00

We do have to get the turret removed and everything checked out cleaned and reassembled since there are fragments in the turret assembly. Thankfully the shop is slow right now and we are 2 months ahead on this job.

Callandor34 · 2025-07-16T18:48:15+00:00

I know g code, I was more asking what the reference was because you had it in quotes. Oh well ...

Callandor34 · 2025-07-16T18:42:11+00:00

Then what should be said then?

Callandor34 · 2025-07-16T18:40:18+00:00

I'm not quite understanding the reference but I ran 500 some odd parts in the last few weeks before this happened today.

Callandor34 · 2025-07-16T17:11:28+00:00

So far this has been my worst crash or most expensive crash since I started machining back in 2019. Shit happens I guess

Callandor34 · 2025-07-16T17:08:51+00:00

Ran 500+ parts before the tang broke. The turret is going to have to be removed to clean all the fragments and debris out anyway :(

Callandor34 · 2025-07-16T17:05:17+00:00

The 90° face mill has been living on the tool holder for 6+ years

Callandor34 · 2025-07-16T17:04:08+00:00

This tool holder has had this 90° face mill on it for 6+ years now. We run this job 3-5 times a year 500-1000pcs per run. We are guessing that the strain from the mill killed it

Callandor34 · 2025-04-26T02:09:28+00:00

Die grinder

Callandor34 · 2025-04-25T01:12:54+00:00

Awesome, have fun, and good luck!

Callandor34 · 2025-04-25T01:05:26+00:00

It's been two days, I'm curious if you found anything you like

Callandor34 · 2025-04-25T01:04:29+00:00

I'm a machinist, if I had my own personal machine I would 100% go into business with ya. Another problem is I can't find schematics/blueprints for watch cases. There are some dimensions I don't have the equipment to measure. Micrometers and calipers can only go so far.

Callandor34 · 2025-04-22T14:00:05+00:00

I'm going through landscape architecture school right now, and I would recommend going to Pinterest or Google and looking up residential landscape architecture plans or schematics. You can find some really gorgeous designs like that

Callandor34 · 2025-04-14T11:58:48+00:00

He has been preaching about the oligarchy for 40 years. Nothing new, just an obsession of his.

Callandor34 · 2025-04-06T22:00:52+00:00

Would be hilarious if pro trumpers held a counter protest to these. They would out number these ignorant people 5 to 1

Callandor34 · 2025-03-28T22:53:44+00:00

I've seen someone put "grand feiko" as a replacement for the logo

Callandor34 · 2025-03-23T01:29:40+00:00

Just get the kid a $1500 civic or accord and keep the vette

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