Hi there

I want upgrade my belt drive 4x4 CNC with drive gearing to give me 4:1 ratio all round.
I'm just designing the reduction units now and I'll use a 15T pulley onto a 60T at 90mm centres. I'm opting for HTD belt but cant decide if I need 10mm or 15mm wide belt and if I should go with 3m or 5m.

Any links or thoughs welcome