Timing Belts

[JAZZCNC]

Within reason - using too small pulleys can stress the belt too much or risk leaving not enough belt teeth engaged with the pulley. I avoid using less than 15T pulleys for this reason.i

If you look I said any belt that "suits" and obviously too small giving wrong tooth engagement wouldn't suit would it.?

Am I missing something but, isn't it possible to locate the motor between the two lead screws and fit two pulleys to the motor to drive two belts?

Yes it is and that's how I did it first time but found it hard to get even tension on each belt.! It also means having the screws offset or one machined longer or like in my case where I hadn't allowed for this when machined due to originally going to use slaved motors screw extensions needed making.

The way I have it now isn't pretty but it works very very good and super reliable and easy to swap ratios.!