Parametric standoff/spacer generator
Description
I needed some plastic spacers to finish off assembly of a Pi case and needed the kind of spacer into which the screw can thread itself. Found these, but unfortunately they were the “pass through” kind … so I decided to make my own spacers, in open OpenSCAD format. It's one simple module with pre-defined parameters which you can override: * `spacer_type` is the “roundness” of the spacer; setting it to 6 gives you a nice hex, more than 120 gives you a nicely shaped cylinder * `spacer_height` is how tall the spacer is * `screw_diameter` is the diameter of the screw; the inner hole size is adjusted using the `plastic_coefficient` parameter, depending on the material you're printing with (the rigid plastic works OK for ABS/ASA/PETG too, but it will be much more difficult to thread the screw into the plastic; however, the spacer will be reusable, unlike the “loose” ones which are pretty much single use) * `screw_length` is the length of the screw; making `spacer_height` equal to 2*screw_length will give you a hollow spacer * `num_lines` defines how thick the spacer will be. There are some predefined sizes in both types, in case you don't wanna fiddle with OpenSCAD (you really should, however, it's fun). Hope you find this useful!
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