The Secret Society of Lathe Trolls

Thanks for the close up on the suspension box ! You make me want to try this kind of "real neumann lathe" type of carriage and suspension. I asked because I chip diamonds too fast, and I'm wondering what people use in their suspension mecanisms. Lately I was putting the blame on my head drop/lift me...

Really nice work !
May I ask how your lever to drop or lift the cutterhead works ?

Nice, thanks for this experiment and for providing infos and measurements ! What's the weight on those torque tubes and the rest of the moving elements ? What kind of suspension for the moving coils did you chose ? And lastly, how did you manage the electromagnetic properties of most elements (mainl...

Could you post an audio sample of that noise on the record ? Did you test with no suction tube connected but pump on ? (to see if it's decoupled properly) I see that you have a vacuum platter, did you try without the vacuum platter applying suction ? Did you try with different nozzle sizes and diffe...

Hey everyone, I've been trying to figure out how the neumann suspension boxes work. This thread explained the main concepts nicely : https://www.lathetrolls.com/viewtopic.php?f=1&t=4828&p=29370&hilit=depth+solenoid#p29370 But to go a little further, I was curious about the cutterhead dropping lever ...

There are many elements in a cutterhead, and the least you have, the easier you can test every component separately. A v-spring like that is hard to do because there are many parameters at play : its shape, the material, the material thickness, how it's connected, does it need to be dampened... Also...

As usual incredible stuff ! I'm wondering, you don't have a vacuum platter, do you ? I'm asking because my lathe is lacking a lot of the features you have (automatic groove distance, automatic heating, lights...) but the only thing I feel like I really miss that would make a big difference is a vacu...

Podorvanov wrote: ↑

Wed Nov 05, 2025 4:29 pm

This is just brutal. I'm shocked by this result. Why is this? I thought it was just me. So it's not the lathe.

what do you mean ? Could you elaborate please ?

A guy named ruben rubio was posting on fb groups that he made replacement drivers for the t560 cutterhead. I have no idea if it's true or what quality to expect. He got banned from the t560 users group because he spammed them a lot. So he was kind of problematic but his advices helped me solve an is...

I'm having a similar issue, but only on one side of the record. I don't have a vacuum platter, so I usually get records that are far from flat, and it seems to me like those issues only appear on the "bent" side of the record. I'm using a stanton st-150 turntable, my theory is that it has a bearing ...

When cutting into plastic your needle should be "digging" into the plastic because plastic has a spring back effect (it will want to go back to its original shape after cut, in the opposite direction of the cut) To counter that you need to cut with a "digging" tilt, so once the spring back effect ta...

what do you mean by music removed ?

As of today, I’ve started to reproducing the Presto microscope arm, which is a rare beast if you don’t have one. The first batch should be ready in the next four weeks. Depending on what you want, I can modify to have a modern microscope fitted like the ones from China that you see with the screen,...

Nice ! Do you plan on selling the cutting heads alone ?

By the way, seeing that cutting head so close to the edge of the table gave me chills haha

Actually there are some test cuts on yt :

https://www.youtube.com/watch?v=Ho5WjTEocW4
https://www.youtube.com/watch?v=vHmSof20cQQ
https://www.youtube.com/watch?v=bJloBojUlDs

Hard to judge without knowing anything about the cutting process.

1600€ for this is pretty wild. Can't wait to hear some test cuts

Nice, cheers for the detailled reply ! It's knop's and the lockdown lathe that motivated me to do this aswell. But I had a hard time sourcing many parts needed for the lockdown lathe, and I wanted an automatic head drop feature so I ended up designing my own lathe. I should have used fusion 360 aswe...

Again, really nice build ! What's your experience and inspiration for the 3D printing designs ? You seem to have chosen nice manufacturing technics that fit 3d printing nicely. I ended up buying way too many parts that I could have printed myself, or going with connection methods (with classic blots...

Now that's a shitty logo
Are the admins allowing this kind of nazi glorifying bs on their website ?

Cheers for this thread, really interesting read ! I was thinking what would be the most appropriate regular machining gear that could be adapted for this use ? Surely the cheap diamond polishing machines available on aliexpress are far from suitable for this work ? Would adapting a lathe spindle hor...