Anti Backlash Nut Kit


This modification kit increases your Mill One’s precision, perfect for high precision applications such as PCB milling and model making. Each kit comes with three sets of anti-backlash nuts.


  • x3 Spring-loaded anti-backlash nuts
  • x3 ACME nut mounts
  • x12 M3-12mm socket head cap screws
  • x12 M3 nuts

Instructions for assembly are on the package, as pictured.

*ACME leadscrew in photo not included.

*Color of 3D printed parts may vary

In stock



This kit provides a drop-in replacement to standard ACME nuts on the Mill One V1 and V2 machines. Using a spring-loaded, dual-nut system removes backlash due to wear in the machine’s linear motion system and ensures long-term machine precision. This upgrade is recommended for users who use their Mill One for high precision applications.

Additional information

Weight 0.1 lbs
Dimensions 4 x 6 x 0.5 in