First Build 5 x 12 Steel Frame CNC router

[Scott Damman]

The fact you even considered 5mm pitch screws and Steppers on such large machine shows you need to do much more research.

Sometimes I forget about the speed of the screw also being an important factor. I put together a little table for resolution based on ballscrew, based on my calculations I need to go with a higher pitch or up the gear ratio to keep the speed ~80% max. Upping the ratio of course hurts resolution so Im looking for a 20 pitch screw. Higher pitch also helps keep the ballscrew speed down, but of course hurts resolution per mm.



Thoughts on this?