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How to make a mini milling machine- manual or CNC!

Step 6Make the rails

Make the rails
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Take the cut Aluminum channel and drill three 4mm holes in each one. One hole 1/2" from each end and one hole in the center along its length. If you use a center drill first then the drill bit won't move around on you when you try drilling the holes.

Deburr the holes using a deburring tool- this will get rid of any rough edges left by drilling. You could also use a file but it's not quite as clean.
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Author:Honus(Multi-Bot)
I'm a former bicycle industry designer turned professional jeweler. I like working with my hands and am happiest when I'm in the shop building my creations. If you need help with your project just let...
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