Question: turntable

rweigel

Member
Joined
Dec 22, 2017
Messages
72
Location
France (north of Alsace, close to Germany)
Hi,

I made myself a turntable two years ago, starting with a 9“ thrust bearing used for rotating parts of furniture and heavy TV sets.

It works, but...

Made from Aluminum with steel ball bearings, the precision of the bearing is not comparable with thrust bearings for machines or vehicules. It also got a lot of friction and some spots where it turns rougher. The friction was reduced when I replaced half of the steel balls by slightly smaller Nylon balls. Still far from perfect, sometimes a cut is jarred when I turn over a rough spot.

The turntable can change height on a 2“ square aluminum profile, the black lever locks it there.

So, altough it works, I would not make it a second time like this, nor recommend this design to anybody. When I get round to built another one with real thrust bearings, this will be replaced.

Ralf
 

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jerrywh

~ Elite 1000 Member ~
Joined
Jun 7, 2007
Messages
1,032
Location
Baker City , Oregon
I never buy anything because it is cheap. I have had at least three turn tables and the late GRS is better than anything I ever had. I haven't heard anybody brag about the others.
 

rweigel

Member
Joined
Dec 22, 2017
Messages
72
Location
France (north of Alsace, close to Germany)
As I said a month ago, I‘ll replace my high-friction turntable. Did it saturday. It‘s a small potters wheelwith two 6062 ball bearings.

47BC1EDC-BB0B-4D0F-89F1-87BA305561C8.jpeg

It’s got a M10 thread which comes in handy to fix it onto my height-change rail. Cutting curves works much better now.
 

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