Belt drive vs direct coupling pro's and cons, Poll

[Boyan Silyavski]

It was done long ago to eliminate vibration when drives were crappy. Now drives are digital so that will not matter so much. Now is done for the sake of hiding the motor, gearing it and so on. And yeah, for the sake of alignment and simplicity, as 2 things bolted to the same plate/plane is easier to align than 2 thing bolted on a same axis.

Anyway i don't like spring couplings and having in mind the cheap price of ball screw mounts, i would always use both sides angular contact bearings. The so called rigid mounting, or scenario D.

At the end of the day machines look more tidy and all is more rigid when you don't see the motors. Protruding motors will need a good mount, not just 4 bolts and spacers, so its up to you.