by whowhatwhere, published
The vice head could be shod with metal (using a couple of metal strips and a few drops of glue) to improve the usefulness of the tool.
I designed it around a long metal bolt I have in my junk draw, but the design could be modified to use a commodity bolt available at a hardware store or preferably a printable threaded bolt (still trying to figure out how to make threads in Sketchup - any advice on this would be appreciated).
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Managed to find a script for building threads in Sketchup and used it in another design, I just got my bot delivered so I'm going to be assembling it for a while before I can test how well threads work and what kind of resolutions are viable. I will put my findings up when I do.
Cool, I found a sketchup plugin that can make a helix (but it didn't work to well for me) I did however find a tutorial for making threads.
I think given that it's a single use in this design, the pitch and depth etc should be determined by what a makerbot can best print.
I'll post back after a little more research.
I'm not sure how you can do it in sketchup but Solidworks has an automatic function that draws out the helix and then you can cut along the path of the helix the exact thread profile you want. I'll try and draw one up soon. If you post some dimensions such as pitch size, depth and length i can try and make it according to those dimensions.
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The two main vice halves fit together as shown in the diagram, the crank fits on the end of the bolt which then goes through the first vice half (where a loose fitting nut is placed on the bolt with some loctite to hold it in place. (NOTE the printed halves have no thread in their hold and the bolt is meant to free spin in them when first inserted).
A single nut is glued to the second half inside the slot provided to act as a thread to push and pull the second half of the vice.
Finally the crank is attached to the head of the bolt.
3 STLs + the SKP
Plate 1 = The first half of the vice
Plate 2 = The Second half of the vice
Plate 3 = The crank in two pieces
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