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Hey @kenn_sebesta167,

Thanks for the comment and recommendations. I'm sorry I didn’t get back to you sooner. I haven’t looked at the forums in a little while.

I changed the layer thickness error to show up as a tooltip and to show the “correct” layer thickness. Of course, by “correct” layer thickness I mean the layer thickness ensuring that a single layer captures the flat section of the thread profile. This is an estimation of what would work and in my experience, it prevents tiny threads from printing with too little detail/resolution.

The error you are getting with the cone removing geometry from your part is an oversight on my part in testing. That is the chamfer cone cutting the chamfer on the threads at the exit of the hole. The chamfer cone should scale with the pitch of the threads to not interfere with the rest of the part but in that circumstance, it was not scaling correctly. I have fixed the error so you can thread the hole without it cutting into any other section of the part.

I also updated the script to allow for many hole and stud selections. The main reason for holding off before was to prevent users from creating 10+ threaded holes/studs and then lagging the part studio until it is unusable. I realize now that kind of “hand-holding” really isn’t necessary and everyone is smart enough to figure out that this is a pretty heavy feature script to run if you have multiple starts or really fine pitch threads. The script is actually quite optimized but the predominant bottleneck for performance is the sweep and union functions which each can take hundreds of milliseconds to solve (When you add up ten 200 ms sweeps you're waiting for 2 seconds just for the part studio to load).

One last thing, in the picture you uploaded you selected a threaded M3 hole and I wanted to let you know that this script was not designed to interface with any standardized threads. If you want to, the hole/stud size needs to be the same diameter as the external thread of the corresponding bolt. So for an M3 screw to thread in, the hole would need to be 3 mm and the pitch 0.5 mm. External threads act like a die and cut into the cylinder while internal threads add material to match the external threads given the same diameter. This means that internal and external threads from the same diameter cylinders match and thread together.

With these changes, I updated the UI so it is easier to see how the more advanced features expand the functionality. I hope you can finally use this feature script how you initially desired. Let me know if you have any more issues so I can resolve them.

You can find the new version here (Plastic Thread) or you can just update the feature in your tool bar in any part studio.