2. analog
  3. 1261442675

Ever so slight platter wobble

I have a bix DIY table that I got from a friend. I noticed that when I look at the bottom of the platter or actually put a solid object underneath the edge of a spinning platter, every revolution the platter will touch the object. You can hear it. The wobble is tiny less than 1/2 mm at the edge. I dont have an arm for this table yet so I do not know how it sounds and I am wondering if I should even keep it. Will 1/2 mm impact sonic performance. Scientifically speaking it should not, right? Since whenever the platter dips, so will the tonearm. Do non diy or high end turntables also have tiny amounts of wobble?
malammik
malammik OP
10 posts
 
Thanks Bob. I will try that.
dougdeacon
3,338 posts
 
This may sound idiotic, but are you sure you don't have the platter installed upside-down?

A slightly tapered bearing spindle matched to a slightly tapered hole in the platter (both narrower at the top) would provide an inherently stable fit, assuming good machining of course.

And/or what Bob said...
malammik OP
10 posts
 
This does not sound idiotic at all. I do not know much about this table so I am not even sure which side is top and which is bottom and I tried it both ways. I will wait to get home tonight and try Bob's suggestion of various positions to see of there is one that reduces or eliminates wobble.
malammik OP
10 posts
 
Here is a video of the wobble http://vimeo.com/8338593
unsound
6,115 posts
 
This is a common problem, that usually occurs when the user plays too many records consisting of Rock and Roll :).
More to discover