Table of Contents
Tormach Settings
Author: Ethan Nowery, Email: nowery@unlv.nevada.edu
Date: 08/15/2025
Keywords: Tormach PCNC 1100M, CNC
Motivation and Audience
The purpose of this page is to pass on the knowledge that I have gained from using the Tormach to the next person to help them get started.
Generic Settings
The Tormach's max RPM is 5100 rpm. Mainly I always ran the Tormach at a max of 5000 rpm.
Endmill Specific Settings
I found these settings to work the best for their respective endmill. These settings reduced chatter (for a better surface finish), and lightened the wear and tear of the machine and endmill.
1/4 in. Flat Endmill
- RPM: 5000
- Flutes: 4
- Feed per Tooth: 0.0015 in.
- Cutting Feedrate: max 30in/min (this was decreased down to ~20in./min for the finishing feedrate)
- Maximum Roughing Stepdown: 0.06in (1/2 the radius)
- Maximum Stepover: 0.125in (1/2 the diameter)
1.5 in. Face Mill
Note: Face Mills must be run at a slower RPM.
- RPM: 3000
- Flutes: 4
- Feed per Tooth: 0.0015 in.
- Cutting Feedrate: 20 in./min (Finshing feedrate dropped to 18 in./min)
- Maximum Roughing Stepdown: 0.02 in.
- Maximum Stepover: 0.75 in. (1/2 the diameter)
1/8 in. Flat Endmill
- RPM: 5000
- Flutes: 2
- Feed per Tooth: 0.0015 in.
- Cutting Feedrate: 15 in./min
- Maximum Roughing Stepdown: 0.03125 in. (1/2 the radius)
- Maximum Stepover: 0.0625 in. (1/2 the diameter)