I own a Teres table with wooden platter. Over the years, the platter developed a minor wobble attributable to shifting or shrinkage of the wood itself. I've spoken to Chris Brady about this, and we both agree that its sonically insignificant if less than 2 or 3 mm.
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?