![]() Once your nut prints fine, print a short threaded rod, try to change the resolution of the thread, infill,… use your imagination. (* – Depending on how old/new is your OpenSCAD you may need to change the line where the library is included, replace “include” by “use”)īecause this thing is made without much science, you’ll need to tweak a little bit, sorry…įirst print a nut (high res, see comments above), tweak the infill and/or the degrees for the shape of the thread. Use polytests.scad (*) as a user’s guide, refference, whatever. ![]() I’ve printed the threads with a very low infill (0.2) but for the nuts, setting up this value (I’ve used 0.45) helped a lot with the overhang issue.ĭo not use “polyScrewThread.scad”, in contains some bugs! Instead…ĭrop “polyScrewThread_r1.scad” into your OpenSCAD library folder or the folder where you are writing your OpenSCAD script.I’ve found that a resolution of something like 1.5mm (PI/2 is what I use the most) works very well for threads that will be used with nuts made with a resolution of 0.5mm.Just a couple of comments to help using this thing: Instead of rotate polyhedrons, this thing draws the polyhedron in a new set of points. Instead of functions, this thing uses loops. This is my humble take on a screw library to be used in your OpenSCAD scripts.Īnyway, I had this thing for months in the lost projects folder suffering from some serious issues, well some of them remain (it doesn’t render) and once the dust has been shaken it compiles quite nice and printable things. Thanks a lot to mechadense for reporting the bugs! Due to some bugs in the initial version, a revision of the OpenSCAD library has been uploaded, please use “polyScrewThread_r1.scad”.
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