Nottingham spacedeck motor - driving me crazy

I just got a Nottingham Ace Space which is basically the Space Deck with a pre-set tonearm and cartridge. How far away should the motor be from the back right leg of the table? Should it touch? Does moving it further away change the speed? Sometime it sound just a little bit slow. Anyone else notice this?

No it shouldn't touch, I think Nottingham recommends 6 cm from the edge of the pulley to that of the platter? In any case, in mine, it never really made a difference where it was placed. The best just have to be stretched enough, and not too much.
For the record, the AceSpace is not a Spacedeck preset with tonearm and cartridge, it's a Spacedeck with improved bearing if I'm not mistaken. The fact that you got it preset has nothing to do with it.

It's 6mm not cm. Yeah, somewhat different bearing, improved or not I don't know, didn't compare.