The Secret Society of Lathe Trolls

Can you record the noise and post it so I can hear it?

When testing real-world response, I tend to record an impulse (one sample) and measure the response with EQ matching... that way you don't get all the surface noise and TT rumble skewing the result.

If it's the stock 1200 turntable, I'd guess it's a torque issue. I have never noticed torque creating stability issues (other than wow and flutter) so I would be surprised if that's the cause. In any case, you need to do the resistor mod to get good results with a Technics 1200 / 1210 so I would lo...

Audio is also ok because it happens even when I cut silent groove. Ok this is an important bit of information which helps to narrow down the list of potential causes.. it's definitely mechanical. Temperature should be probably ok, I cut around 40-42 celsius of disk temperature. This could be the ca...

Hm, its quite common for that to happen, and it shouldn't damage the clutch. It's more likely to be an issue with the lead screw itself. When you wind it back, the screw has to lock back onto the nut, so perhaps its cross threaded, or there is some grit / swarf stuck in there. I would try running it...

Rochester wrote: ↑

Mon Mar 25, 2024 1:03 pm

Does anyone have advice / instructions on the dis assembly of the overhead motor / worm drive for the T560? I'm having clutch issues and wondering whether to change the clutch bearing or just tighten the screw tighter. TIA.

What issues are you having?

BTW the above answer covers all the possible causes of low frequency skipping that I can think of at the time of writing... but looking at the picture it looks like its mainly a disc temperature issue.

This could be chatter, “humping”, subsonic frequencies, too much stereo width.. the list goes on. Without seeing the lathe set up, inspecting the disc, and hearing the audio, it's hard to say. But here are some pointers: When the stylus hits a warp in the disc, like a car hitting a hump in the road,...

boryo wrote: ↑

Fri Feb 02, 2024 2:05 am

I was using sp15 and was cutting heavy boom bap hip-hop without any issues, it worked perfectly. Switched to sp10mk2 just because I had good deal on it.

Thanks for the info How deep were you cutting?

Interesting... strobe sdturggling how in what sense? It's not 100% solid. It moves a tiny bit back and forth (by a tiny margin ), but the rotation of the platter is stable as hell according to the RPM app (wow and flutter values are also low)... This could be my SP too. I have a recapped BBC versio...

this seems to be obsessing with what lacquers are called...this paper might have some interest back in the 70's ,but I don't think now... Yes the discussion got derailed, and it became about semantics instead of content, but that doesn't mean the paper itself is at fault. As with a lot of content o...

Interesting... strobe sdturggling how in what sense?

Amazing! Thanks EpicenterBryan!

I wonder if I could ask where the photo of the 14-B came from? Is there any more info out there about it? Larger res photo?

@Dub Studio - I am currently cutting with SP15. It has been freshly serviced. It can withstand around 70 g of weight. I also have a sp10mk2 and this can withstand easily around 500g.. Did a very non-scientific test. I bought myself a digital scale spoon (for spices and such). Placed a phone with a ...

Thanks Steve

@Dub Studio - Besides the MK2 with the resistor mod to get up to 2kg, what do you think about the Technics SP-15 with 3kg starting torque for use with a VR and the precision platter? I'm researching all the available options on there and was thinking that would be a decent torque vs money unit...? ...

maybe try numark ttx, has lots of torque and older version is cheaper Additional note: As far as I know, the Numark TT-500 has the same motor as the TTX, but can be found used more often and cheaper. Torque: 4.5 kgf.cm (temporary); 3.5 kgf.cm (stable) Unfortunately, the torque of a motor (published...

Anyone know where this is now? Neither of these links seem to work. Thanks

For what it is worth, ran into this passage on https://www.rarerecords.net/record-info/acetates-and-test-pressings/ : "While acetate pressings are usually referred to by record sellers and collectors as 'acetates,' the term used to describe them within the industry is 'lacquers.' That term makes mo...

We should be wary of calling words “correct” and “incorrect”. It is perhaps more useful to think of words as having “currency” or lack thereof. Neologisms are created all the time, either by accident or design, and if they are used enough, they become part of our language, whether we like it or not....