Aluminium Framed Router

[JAZZCNC]

Why would you go with 2:1 ratio on 5mm pitch screw. This will be far too slow for router.

Also to make matters worse your only running 36V which means your your steppers are under performing by far margin, even with 48Vdc they will be running slower than they are capable of doing.

With 36v you'll be lucky to get 1000rpm and have any torque left. With 5mm pitch screw at 1:1 ratio that would only give Max feed rate of 5000mm/min. This halfs with 2:1 ratio. 2500mm/min is way to slow and this is Rapid speeds. Your actual cutting feeds will be in the 2000mm/min range which is way to slow for router.

Dump the ratio or better still swap the Pulleys around and go with 1:2 ratio. Up the voltage to 48v ASAP.