Wire spool including Tie Fighter mode, OpenSCAD parametric
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Fully parametric model can create any reasonable dimension of wire spool
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I had some left-over wire taking up space on really large spools. I looked for a smaller wire spool to print, but didn't find one to my liking. I created the OpenSCAD model to be able to make any size spool you could want, within the limitations of your printer. Halfway through I noticed the similarity to a Tie Fighter, and thought that's too cool!
I'm uploading a few sample STLs, but you want to run OpenSCAD with the Customizer. You will need a very recent (Feb 23) download of BOSL2 https://github.com/revarbat/BOSL2/wiki. Parameter names should be self-explanatory.
The gray Tie Fighter in the photos is at default dimensions, 75mm outer diameter, 40 mm wide. “spool_width” is the usable spool length, not including the spool faces. Note that “spool_outer_diam” is the diameter across the points, not the flats. My experience with PETG: “spool_cyl_thickness” can be 1 to 1.5mm. “spool_wall_thickness” can be 1.5 to 2.5 mm, on the thicker side with “honeycomb_Boolean” on.
This is a 1-piece model that requires supports. You'll want to print in the default orientation of the STL to minimize support requirements.