The Secret Society of Lathe Trolls

cool!!! x-ray!

http://youtu.be/BXEzpdEFsPc

concretecowboy71 wrote:Check out Welcome to 1979. Cameron is on this board sometimes. Great guys and great studio!

yes, great studio! the have vinyl parties every now and then.
you can also go to the site (welcomero1979.com) and get in touch with Chris Mara.
nice guy!

thanks! actually i meant the link to hysteresis controller link. couldn'T find it anywhere....

Hi! If the power supply is a PC type switched one, Is usually operated with error amplifiers, I mean, comparing the voltage supplyed with a reference voltage,and altering the PWM rate to adjust output. the way the spsu senses its output can be altered to sense a device providing voltage proportiona...

other option i have is to use an ashland hysteresis motor with a frequency inverter and belt drive the platter.
it would be goo as i already have a stash of these motors from my old ampexes.
thoughts

i saw flo's circuit. i am more inclined to use an opamp design. someone told me today that i could do that regulation in the psu instead of the driver. clues?

pics soon!

hello trolls, i am in the process of building a turntable to my lathe. i need now some tips on a speed regulation circuit. i am working with a dc motor and a pwm driver based on ne555. i can go easily from 16 to 78 without loosing torque. my platter is around 12kg aluminum (with a car flywheel added...

Hi, welcome in forum. First answer : with a lathe you can use too polycarbonate, not only acetates. Polyc. is a good material for start to do experiments with your lathe. Second : about the source, depend of which blank you speak : if pc ( polyc. ) is easy; if acetate is more difficult and not chea...

great! i was just reading it!

helllo trolls, i just finished an album i am producing and client needs 200 copies pressed with by 8 of july delivered in london. he has already tried mobineko and record industry in NE but none can put up with this deadline. someone??? 200 copies 12" one side white and other black full color double...

great! curious now to listen to the record. how does it sound?

jtransition wrote:How much do you guys think would be a reasonable price to charge for this ?

hmm don't have a clue.
are you interested in giving me(us) some lessons?
if so, pm me your contacts, please.

Hey Trolls, I am going to spend a couple months in Europe in june this year and would like to take some cutting lessons. My fairchild is almost ready to go but i feel i need some guidance and definately won't find that in my country (Brazil). It could be in Amsterdam, Paris or London. Any tips? Chee...

A channel out of phase! Maybe on the playback system? Try to invert one of the playback speakers...

Great replys fellows! I have lots of experimenting to do! Found some pics online that is probably somewhere around here already, but i tought i should post'em in this thread for future reference... http://i426.photobucket.com/albums/pp344/freakmedula/image_zpse602795d.jpg http://i426.photobucket.com...

The tube torque receive the vibrations from togheter the channels, left and right, and transfer the music with the cutting stylus to disc surface in a groove. The best material for build it (I think) is aluminium. Thanks Raffaello, got it, But how is it supposed to be linked to the armature. It has...

Great advice Mark,

I have been reading a lot on the subject, although i am not a native english speaker...
One thing that still remains a mistery to me is the torque tube, how is it suposed to behave and what is the best material to use?

Thanks for the tips!

It's important to note before you do this that if the signal is out of phase at a nominal test frequency (say 1 kHz), it's not necessarily going to stay that way once you approach and exceed the secondary resonance frequency. At some point the moving mass (coils, torque tube, et cetera) is going to...

Cool , has someone experimented something like that ? I'm still not convinced why a piezo disc glued to the torque tube could not be used as feedback... I use a piezo disc in my diy plate reverb with very good results. I've done some experimentation using a ceramic stereo pickup coupled to my DIY h...

Cool , has someone experimented something like that ?
I'm still not convinced why a piezo disc glued to the torque tube could not be used as feedback...
I use a piezo disc in my diy plate reverb with very good results.