Diy Turntable

[Rob042]

Hello All
I'm looking at building my own turntable (again) and was after some pointers and tips.
am going to use the floppy motor drive idea from - http://www.audioorigami.co.uk/Floppy...pyDIYMotor.htm

while looking at a thorens platter on ebay -
http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA%3AIT&rd=1

thanks
Rob

[pre65]

hi-what are you using to support the platter (main bearing) ?

regards Philip

[Rob042]

Philip
first thoughts are to use a large heavy wooden 'block' which will also have the arm on it.
The motor I was going to place in another block.
Have seen some nice butchers blocks which may be up to the job,what do you think.

Rob

[pre65]

hi-the thorens platter you refer to only seems to have the bearing spindle.
the platter bearing is a VERY important part and normally is a PRECISION engineered part way beyond diy manufacture.
that was what i meant in my last post.

regards Philip

[Greg.]

........and I thought belt drives were out of vogue

[Rob042]

ah - having looked here http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA%3AIT&rd=1

I was thinking I could use a valve guide with another ball bearing at the bottom.

said who Greg :-)
I dont mind if it the fashion or not, its easier to build ;-)

Rob

[pre65]

hi-you will need to engineer for a perfect fit,best not to alter the spindle diameter.bearing surfaces are normally ground to size-not machined.
you could find a valve guide slightly undersize and use an adjustable reamer to open it up ,best of luck.
how are you going to mount the valve guide ?

i used the platter and bearing from a logic dm101 which i bought cheaply.the bearing bolts to the platter support,in my case a sheet of delrin.

regards Philip

[Rob042]

update -
may have access to a thorens platter and bearing! will find out tomorrow.

do you have any pictures of your deck?

Rob

[pre65]

hi-not sure how to post pictures.
send me an e-mail or pm with your e-mail address and i'll send you a photo.

regards Philip

[Bizzie]

I thought that you might like to see the TT I made before I got the Lenco.
http://www.theanalogdept.com/alec_byrom.htm

The system has all changed now to an all valve setup and i selling off the Origin Live power supply on ebay but this sounded amazing until i heard the lenco then it was consigned to the loft.