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Boxford 260 VMC CNC Milling Machine

This tool requires induction
Owing to it's dangerous nature, delicate nature, or expense, this tool requires that you be inducted on it's proper handling before use.


The Boxford 260 VMC Milling machine

The Boxford 260 VMC is an educational model cnc mill that has been upgraded with a modern controller and electronics. The CNC milling machine has a maximum travel of 240mm x 130mm and a vertical travel of 130mm, the spindle is speed controlled from 0-3000rpm. It's suitable for use with Aluminium, Brass, Mild steel (with caution), stainless steel (very, very slowly) and most Plastics. The Boxford mill requires induction before you can use it as it is a complex and challenging to use tool.

Current status

Date Status Comment
16th January 2020 Functional/Testing The Boxford is undergoing a program of upgrades and improvements, it may be taken out of service at any time with no notice. Currently the boxford is operational.

Machine Details

  • Controller: Custom built smoothieboard
  • Spindle Driver: RS Motor Controller


The spindle motor controller has been replaced with an RS speed controller.

The DC output from the spindle controller is fed to a Yaskawa contactor configured to control forward or reverse motion. The contactor is mechanically and electrically configured to prevent simultaneous forward and reverse. The DC motor output is fed from the contactor to the spindle motor with a large 10mH inductor in series, presumably to compensate for the low inductance of the motor.

The motor is a Lenke 18V DC motor. An optical encoder is mounted on the spindle (50 Pulse/rev).

Limit Switches

Product Number: IS-3002-ANOG

Boxford Caretakers


The following people offer induction for the Boxford.

Name/Contact Notes


None yet, would you like to start a workshop?


Name/Contact Notes

Recent Changes

  • Phase-1 rewire completed, boxford returned to service. Stever (talk) 02:12, 25 August 2019 (UTC)
  • Rewire continues but we lost a driver and the bridge rectifier to an unexpected ground-return loop. Stever (talk) 02:58, 19 August 2019 (UTC)
  • The stepper driver has been repaired, boxford is functional again. Stever (talk) 10:55, 27 September 2018 (UTC)
  • The x-axis stepper driver has failed under test, is being investigated to determine if it can be repaired or replaced Stever (talk) 20:11, 23 September 2018 (UTC)

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