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Projects
Turner’s cube
The turner’s cube is a traditional project for an apprentice or student learning lathe work who would be given one and told to reproduce it. I made this one on a CNC mill. Getting the diameters and depths correct for an aesthetically pleasing cube is more difficult than it would seem so I after an initial attempt doing it off the cuff on a 1″ cube I did some computer drawing before starting this 1-1/2″ cube. Thanks to Bob Warfield for...
read moreTiming Pulley
I had heard of DIY timing pulleys made by drilling a circle of holes in a piece of material and then turning down the piece to form the teeth. SDP/SI has some great info on pulleys including a chart of tooth profiles (http://www.sdp-si.com/D265/HTML/D265T015.html) and a center-to-center distance calculator (http://www.sdp-si.com/cd/default.htm). The HTD series of belts looks like it has the roundest teeth so it is most appropriate for this machining method. The calculator will tell you center-to-center distance for two timing pulleys but...
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