Any good resources on designing threaded parts?

[azstinger11]

I wan to make some 3d printed versions of these AK Cable clamp set . However i'm not so sure about how to go about designing the threads.

 

[The Chairman]

I haven't done it, as I prefer my threads to be cut, but there's this:

 

[James79]

I wan to make some 3d printed versions of these AK Cable clamp set . However i'm not so sure about how to go about designing the threads.

Largely depends on what CAD software you use. At the simplest end of things, tinkercad has a thread generator... But tinkercad has many other limitations I don't like. I work mostly in FreeCAD, and with that I do threads by sketching the profile of the thread and loft a long a helix.
Key thing is that different CAD software have different work flows for things. If you're using FreeCAD shoot me a message and I can talk you through an example.

Respectfully,

James

 

[lairdb]

McMaster Carr has CAD models of nearly everything they sell (and they sell nearly everything.) Find a thing with the threading you need, merge it into your part (or subtract it from your part, as appropriate), and you're done.

(*Not really, but close. Also, insert a step where you scale it by a few percent in the X and Y dimensions (but not in the Z dimension) to account for FDM tolerances. Experimentally determine the value of "few".)

Here's an example:

I needed a 3/8-16 threaded piece on the end of the hex shaft. So, I pulled a 3/8-16 2 inch threaded rod from MMC, scaled it down 3% in the X and Y dimensions, and boolean merged it with the solid shaft.