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HomeMini CNC MachineBuilding a Mini CNC Milling Machine from Scratch

Building a Mini CNC Milling Machine from Scratch


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DIY/ Homemade Servo driven CNC Milling Machine with Automatic Tool Changer. It’s capable of machining various metals like aluminium, steel, titanium.
The overall build took about 2 year to this point – along work and university.
Every part of this build (development/design and manufacturing) was done by myself with the help of basic tools (angle grinder, Drill press …) and a bench top lathe.
Besides the servo drive and spindle motor, it was a build on a budget. Most of the components are from industry sales. The spindle motor was sponsored by one of the companies I was working for during my bachelor studies (innospiring).

The overall plan of building a CNC Mill evolved during the process. The further I got and the more I learned, the more I wanted to achieve with this. Now it is usable and capable for building small complex prototypes of “high“ precision.

The Automatic Tool Changer was build with a friend of mine, as part of a semester project in university. A 4th and 5th Axis were also developed in the following semester (unfortunately not build yet..).

Some Specs of the Machine:
– X Travel: 240 mm
– Y Travel: 170 mm
– Z Travel: 210 mm

– max. G0 (X,Y): 14 m/min
– max. G0 (Z): 7 m/min
– Servo Power: 170 W (max.)
– Spindle Power: 2,2 kW (i = 2.5)
– Tool Holders: SK20 (max. D12 mm)

– total weight: about 80 kg
– outer dimensions: 500x500x700 mm

If you have any questions: leave a comment or feel free to contact me:
E-Mail: [email protected]
Insta: @engineeringsparetime



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