A Copernican View of the Turntable System

thuchan
the screws can be 140mm long. if you counterbore the 5 holes in the bottom to fit the screw heads to a depth of appx 3/8" that will allow 3/8" penetration into the sp10 thread sockets, which is more than enough. c/b the holes to allow for a washer as well, so 3/8 deep x 3/4 to 1" dia. should work fine.
don

Thuchan, I assume you know this, but in case not, thread size is M5. What material(s) are you using to build your plinth?

Dear Ct0517, got it, sorry i did not think of my ET-2 cause this is such a perfect installation on the Naka I will not change it anyway. My plinth at the moment is not designed for a linear tracker and I do have so many other tonearms lying around - also need some clearance now...
of course this could be agood match!!!

Best & Fun Only - Thuchan

Dear Corby, many thanks for this good hint. Will follow your suggestion

Best & Fun Only - Thuchan

Dear Lewm, yes - I bought a very good MK II motor unit in a very modest plinth. I would not say it is a master piece. I will let build a new one made of plywood, not a very extravagant solution but carefully handcrafted.

Best & Fun Only - Thuchan