Better view of the parts
Was the worm a single print?
@Dale_Dunn Yes, upright and with support. Support cleaned up well with a utility razor blade. It was slightly fused, and a pain to remove, but still looks clean. Used Cura and .25mm layer
I believe it could benefit from vapor smoothing
Is that an OpenSCAD thing?
@Dale_Dunn It was double sized and has been moded. I don’t know which file on thingiverse. Been a while. I took the stl in sw and doubled the bore size and nut tap dimensions then printed at 50%.solid works couldn’t recognize the features. And I do not know the maths to custom make a set. 9th grade dropout. But have ged and military background and a semester in college. I can provide my file if you need/want it or look up worm gear on the cursed thingi, lol. I also added the nut trap area to the helix gear (it was just flat). Even though sw makes then in a snap. I wanted what was already a set
Thanks for the offer, but I was mainly just curious for now.
The math can be pretty gruesome, depending on the sophistication of the worm design. Even with the simplest forms, modeling it would be tricky. Even in SolidWorks it’s a bear, because the tools used to make the gears interact with the material in a way that the tools in CAD software don’t reproduce well. SolidWorks does have the cut with a solid sweep tool, but I don’t think there’s a way to set that up to make a proper worm wheel. If I were to do something like this, I think I would find a gear supplier that offers STEP file downloads of their worm gear sets. Find a set that’s roughly what you want, import it into SolidWorks, and modify it as necessary. Scaling an imported STEP file should be OK, since the BREP model is usually smooth, unlike the faceted STL. SDP/SI has downloadable models with realistic worm tooth profiles if I recall correctly.
Thanks. @Dale_Dunn sw also has in the sw toolbox a helix gear wizard which would work for the worm wheel in the transmission section in all types of standards. (On a Side note that’s how I made me herringbonexy drive gears create the desired helix gear, mirror it, and add the structure for the nut trap worked really well)
You could probably fake it pretty well with a helical cut like a thread for the worm, and a helical gear for the worm wheel (If they have one with a suitable angle).
We didn’t pay for toolbox when we started with SW. All those years ago it didn’t seem worth it for what was then a so-so 3rd party add-on.
So anyway, I can’t really test the idea of faking it with helical gears.