How can I increase the feed rate of my machine?

[ahren]

Unfortunately, you need a multi-start nut (with the same number of starts and pitch as your screw) if you switch to a multi-start screw -- you cannot use the original nut. It will not physically fit.

That being said, I highly recommend multi-start screws. My machine went from ~110 IPM to 300 when I went from single start ACME to 5 start ACME. There are two big advantage of multi-start screws for stepper applications. 1 is the increased linear speed at the same RPM, as stepper motors produce more torque at lower RPMS. 2 is the increased efficiency of higher lead screws. This is just an inherent reduction in frictional losses due to the higher contact angle of the threads.

Hope that helps,

Ahren
www.cncrouterparts.com

[Ranscon]

Thanks, Ill check into the multi starts.
Jeff