Fractal Vise Fully printedT
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Rehash of an old idea someone had to make a vise that would change the jaw shape to fit the object being clamped
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This is a fully printed Fractal Vise. I printed mine out of PLA CF with a .6 nozzle and .12 layer height
Most of the parts have a very tight tolerances/gaps so I would suggest starting small and making sure parts will fit together with your printer settings. I did include step files so that you can make adjustments if needed.
All parts will print without support except for the dovetailed jaws. I included the supports that I made for these jaws if you want to use them. I usually make the z gap for supports equal to 1 layer for easy removal. The main body of the vise also requires one support for the dovetail. Again, I mad the z gap for top and bottom of the support equal to 1 layer.
The Vise back that holds the slidding jaws is best printed upside down with suplied support for dovetail.
The drive screw and nut have very tight tolerances. I sliced them in cura with the “Slicing Tolerance” under experimental set to “Inclusive.” This gave me the result I was looking for in the fit of the threads. Again, I would suggest printing samples until you can find settings that will print your parts with little slop and still move freely. The drive screw is printed with the Cog or drive wheel sitting flat on build plate. The treads will print with no support. The Nut should be printed with the larger bevels on the build plate. Small layer heights on these parts is definitely better for the fit and finish of the parts.
For assembly I put the nuts with retaining pins in the moving vise back. I then threaded in the drive screw until they were flush with the back side of the nut. I then placed the large cog between the small cogs and then slid the whole assembly into the body of the vise until the Large cog’s spindle inserted into the vise body. You can then rotate the drive cog until the assembly is fully seated. Caution, because of the gear/cog shape the gears will not slide past each other and must be assembled this way.
Many of the parts will need duplicates or even multiples printed.
Have fun