Hello- This page is to document my project for converting a Sieg X2 mini mill into a CNC mill. I already have manual machining equipment but can't justify an out of the box legit CNC mill so I decided to try building a small one. What I'm going to do can be purchased for about 4k but I figure I'll be able to do it for a little less and more importantly it will be built the way I want and it's a learning opportunity and excuse to justify more tools that I will need to complete it DIY. I purchased the Mini Mill from Harbor Freight. I'll start from the beginning with it arriving at my front door in a crate. From there I un box it, turn it on to make sure it works. Try it out a little and then start the teardown
After much thought and research here are some of the main aspects of the project I've decided to do. This will be a buy as I go project. Since this is a blog I will document what I'm doing and sometimes show how I'm doing it.
- Improve the axis motion to be more smooth and consistent than what can be expected froma low cost import mill by "blueprinting" everything. Also planning to stiffen the column mounting and possible the column itself.
- convert to ball screws including fabricate all mounting hardware.
- use Nema 23 stepper motors on the X and Y and a Nema 34 on the Z axis.
- Motion Controll Breakout board AXBB-E
- Post processor UCCNC
- CAD/CAM: Fusion 360
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