tips on a steady turning table for a diy lathe project
Hi everybody,
I am trying to build a DIY lathe. I made some experiments, thanks to the information I could find on this blog. I managed to emboss some audio on a cd. However I have still a lot of improvment to make. I still have to find a way to make the arm move regurlarly toward the center of the cd, until now I have been moving it by hand.
But first I would like to build a turning table with variable speed. I found out that using a regular turntable, the speed is not steady, it varies when you press the embossing end onto it.
So I come towards you for advice about what motor and device I should use for this. I tried to use a motor from a reel to reel machine with a variator from a halogen lamp but it didn't work, the motor just has one speed.
Do you have any tip ? or maybe could you redirect me toward a post where this issue has been evoked ?
thank you
I am trying to build a DIY lathe. I made some experiments, thanks to the information I could find on this blog. I managed to emboss some audio on a cd. However I have still a lot of improvment to make. I still have to find a way to make the arm move regurlarly toward the center of the cd, until now I have been moving it by hand.
But first I would like to build a turning table with variable speed. I found out that using a regular turntable, the speed is not steady, it varies when you press the embossing end onto it.
So I come towards you for advice about what motor and device I should use for this. I tried to use a motor from a reel to reel machine with a variator from a halogen lamp but it didn't work, the motor just has one speed.
Do you have any tip ? or maybe could you redirect me toward a post where this issue has been evoked ?
thank you
- concretecowboy71
- Posts: 569
- Joined: Mon Mar 08, 2010 10:13 am
- Location: Cleveland, Ohio, USA
- Contact:
Re: tips on a steady turning table for a diy lathe project
Look into old rim drive turntables. Rekokut made quite a few. They have the torque needed to maintain speed while pressure is applied to the cutting/embossing substrate. There is a certain degree of rumble that you will get however.
Cutting Masters in Bristol,Virginia, USA
Well Made Music / Gotta Groove Records
Well Made Music / Gotta Groove Records
- fredbissnette
- Posts: 383
- Joined: Tue Oct 11, 2016 5:38 pm
Re: tips on a steady turning table for a diy lathe project
i got some mccurdy ch 12 broadcast decks and they pull like trucks there is a tiny amount of motor noise but they are really well built and have great motor isolation
Instagram @styluspressurerecords
- grooveguy
- Posts: 430
- Joined: Thu Jun 22, 2006 5:49 pm
- Location: Brea, California (a few miles from Disneyland)
- Contact:
Re: tips on a steady turning table for a diy lathe project
Hey, I'm making something similar and am going to belt-drive a table with a stepper motor. I know, 'horrors, not a stepper,' but I found a motor driver that delivers pretty much a sine wave drive to the windings, which greatly reduces the cogging and motor noise. It's several times the price of an eBay/Chinese stepper driver, but if it works it'll be worth it. It's the R-213 from:
http://www.testra.com.
If you are smart and know how to program an Arduino, you could probably do the same a lot cheaper. Beyond me though. Found a source for welded polyurethane belting, too:
http://ebelting.com/index.php?main_page=index&cPath=10_21
I'm using 1/2" wide, 1/32" thick. You give them the total length (measure a string wrapped around the belt path), and they whip one out for you. Pretty reasonaable. They have round O-ring material too, so if you have an old Universal lathe, they're your guy.
http://www.testra.com.
If you are smart and know how to program an Arduino, you could probably do the same a lot cheaper. Beyond me though. Found a source for welded polyurethane belting, too:
http://ebelting.com/index.php?main_page=index&cPath=10_21
I'm using 1/2" wide, 1/32" thick. You give them the total length (measure a string wrapped around the belt path), and they whip one out for you. Pretty reasonaable. They have round O-ring material too, so if you have an old Universal lathe, they're your guy.