Cylindrical Slide Rule
by Mortimer, published
A printed version of a brass slide rule (that I keep in my car to calculate gas mileage) I made previously. I'm having trouble coming up with a good way to join them. Ideally, I'd like the joining to be done with one piece that still allows for a hole in the middle, like with the brass version, but I didn't like any of the ideas I came up with. Please help / derive.
Update: I came up with a center piece that I'm happy with. As I am currently CAD-less, my friend J. Ferrari did the CAD work for the center piece.
The center piece is bent to fit in the center hole. The ends of that piece won't bend as easily by themselves, so I had to bend them a little with pliers. Also, it's designed to be printed with 0.25 mm layers.
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Cylindrical Slide Rule by Mortimer is licensed under the Creative Commons - Attribution license.
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