Retro fit core drill for motorised z axis suggestions

[magicniner]

Do you need fixed feed speed or fixed cutting pressure?

[Fivetide]

Do you need fixed feed speed or fixed cutting pressure?

I was thinking fixed cutting pressure , cutting speed would depend on material and also help tool life I think.. not sure lol

I had thought of putting a wide pulley on and fixed weight on a chain, seen this done for other things

[magicniner]

I had thought of putting a wide pulley on and fixed weight on a chain,

My thoughts too, if fixed force.
For fixed speed a stepper, stepper driver, variable frequency pulse generator and toothed pulleys & belts.

[Fivetide]

My thoughts too, if fixed force.
For fixed speed a stepper, stepper driver, variable frequency pulse generator and toothed pulleys & belts.

Yes agreed.. I think ill try that.. keep it simple rule. Thanks magicniner