Mill-it-Mini-Tech-Features

Watch the video of the Mill-it-Mini CNC milling machine to see actual drive performance without any backash software compensation.

• Watch the video here to see actual drive performance
• Each axis is cycled through a 9mm stroke
• No backlash compensation settings were used
• The axes were calibrated and then tested
• The video shows actual mechanical drive performance
• All three axes are shown to be within 0,01mm
• Read below to see how to achieve this performance

We offer the Mill-it-Mini CNC milling machine system with 1NM and 2NM NEMA 23 motors

• Motor removal is hassle free and fast
• The motors are IP54 rated with fitted cable-glands
• Significantly improved cable management and motor protection
• Motor replacement takes 2 minutes
• Future upgrades to closed loop systems made easy

The motor mounts that couple the stepper motors to the ballscrews in the Mill-it-Mini CNC milling machine are custom cast LM25 parts and precision CNC machined before installation. All Datum surfaces are made on CNC machining centre

• A vertical machining centre (VMC) machines all datum surfaces
• The motor mount holes, motor seating profile, structural mounting holes and thrust bearing insert pocket are all machined in one operation on the VMC
• This ensures precision alignment between the motor, coupler, ballscrew and slides.
• The motor seating profile machining ensures radial motor alignment

The Mill-it-Mini CNC milling machine’s core carcass is an LM 25 cast base with a Steel spine.

• Custom designed LM25 cast base
• All mounting surfaces precision machined
• Welded steel spine – optimally welded for symmetrical cooling of weld joints
• Steel spine and cast base form a rigit core machine structure

In order to generate high milling forces you must lock the ballscrew in the direction of movement. The Mill-it-Mini CNC milling machine has two double angle contact bearings on each axis.

• Ballscrew is custom machined to sit in a double angle contact thrust bearing
• The outer race is held with a preload in the custom cast mount
• The result is a very rigid end condition
• 100% isolation of the motor from the feed force during machining
• Thrust setup ensures no unwanted play or mechanical movement whatsoever in the direction of movement

• The spindle mount is a 43mm mounting collar
• Aluminium collar can be moved to change the height position of the spindle on the Z axis
• Allows long cutters and work pieces to be accommodated
• compatible with most 43mm mountable CNC accessories

A ballscrew is the best method for drive performance in a CNC milling machine and the Mill-it-Mini has a ballscrew on each axis.

• The Mill-it-Mini is driven in all three axes by ballscews and ballnuts
• A ballscrew drive is the most effective, efficient, and accurate way to drive a CNC system
• The results is a drive system able to maintain positional accuracy when under machining loads down to 20 microns (0.02mm)
• Ballscrews are very sensitive to alignment and setup. All the mounting surfaces are machined as datum surfaces on a precision vertical milling machine.
• Therefore all alignment surfaces are made to very tight tolerances ensuring the ballscrews and ballnuts are perfectly aligned
• Please Click Here click here and see the section on ballscrews for more information

The control system controlling and driving the Mill-it-Mini Desktop CNC milling system is a very high spec industry standard controller.

• These controllers and drives are industry standard and have been in our systems for years
• The controller has a no volt release safety circuit – required for CE
• EMC mains AC filter and industrial standard connectors fitted as standard
• You can use the same control system as we use in the Mill-it-Mini to run a half sheet sized CNC router system

We supply the Mill-it-Mini CNC milling machine with very robust and easy to use control software.

• The video here shows the machine operation tutorial under UCCCNC control
• The UCCNC controller is a fully windows compatible USB controller
• We use the UCCNC controller on all our systems
• Reliable, robust, and symmetrical pulse train generation for the motor amplifiers
• The UCCNC software, USB 2.0 controller, and the industrial drive electronics give the Mill-it-Mini commercial production spec performance