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TinyMill — Part 1
I’ve been thinking about building a more accurate CNC router/mill/cutting device for a while. My router is alright, but the fact that it’s about as rigid as a business card doesn’t do it any favors....
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TinyMill — Part 2
Today is my last day before I go back to school. So today makes a good day for an all-day machining blitz. My first order of business was finishing the lead screw. I pressed on the other bushing,...
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TinyMill — Part 3
My day-long machining blitz is done. And the total part count…. is dismal. I started out by preparing lead nut blank. I began with the giant bar of black delrin. Which I promptly cut up. I cut it,...
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TinyMill — Part 4
The benefit of having a partial week of school during which I couldn’t work in the shop was that it gave me a chance to order (and receive) a set of telescoping bore gauges. Now I have no excuses for...
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TinyMill — Part 5
And after more school, I have more progress. Not a lot, but something significant. This is an anti-backlash nut. Specifically, it’s an EvaNut pressed into an aluminum block. It took me far too many...
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TinyMill — Part 6
And I’ve hit a milestone. The Y-axis is more or less done. Yay! I had to build a base for everything to sit on. so I cut out a piece of 8″x8″ aluminum plate that I’ve had sitting around for some years,...
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An Aside — Making Counterbores
Over the course of designing some more parts for TinyMill, I realized that I needed to counterbore some holes. I could easily fake it with an end mill or drill bit, but one of my design goals was to...
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