Warco WM16 CNC Conversion.

[noyloj]

I'm hoping to keep the motors and drivers for my next project... But at the risk of sounding dumb, why should the larger motors affect top speed? Surely not through inertia?

[noyloj]

I suppose that the higher power means that current switching will be slower... but not to any degree that will matter considering the maximum velocity these motors are rated at and the application that they are being used in?

[noyloj]

If I run them at plenty high voltage this should offset switching rates through the windings...

[noyloj]

The motors will never be under any real load and should never get warm either which will reduce internal resistance after extended periods and again offset speed at which current flow can be changed though the windings over smaller motors..

[Clive S]

Well you seem to have it sorted then. I have a WM18 mill with nema 23s with 2:1 reduction at 68V and am882 drives and it is fine.

You will need to do some more research if you think nema 34 8.5Nm are correct.

[noyloj]

I'll use what I've got and hope that it's adequate. I want to use the motors and drives for a much bigger CNC router project later... it's not really that important that this machine runs super fast it's not for production more for fun! But thanks for the input, I'll consider it when I build my next mill.

This mill is more to enable me to play with these drives and whatever controller before my router build.

Incidentally, I'm going to direct drive the Z axis... belts are just another link in a chain imo.

[noyloj]

I'll keep you posted as to how this pans out!

[JAZZCNC]

Incidentally, I'm going to direct drive the Z axis... belts are just another link in a chain imo.

You have lot to learn Mr.!! . . And your not going to learn anything except how to waste money if your going to ignore advise from VERY VERY VERY experienced builders.

Motor size isn't all about speed and Belts are in no way weak link.!! . . . . Now suggest if your not prepared to listen then you go away quitely and research out why two experienced builders have used Smaller motor and Belts on larger machines.?