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

[routercnc]

I agree with the above. My current machine uses
1:1 belt drive on Z (to hide the motor)
Direct drive on Y through spring coupler (although I had plans for belt drive to hide the motor, but never implemented them)
Direct drive on X and A through spring couplers

My comments:
Choice of which to use on DIY machines is mainly to hide motors, mounting simplicity, and if you want options to gear the drive train up/down
Not noticed errors due to belt play or stretch so don't think that is a factor on DIY machines (commercial machines I've seen are all direct drive though)
Have had those spring couplers break (I don't think they are a good idea on a cnc machine), and next machine will use 'oldham style' couplers which look more robust (although cost a little more)