Extruder Screw Designing software

Can anyone suggest me the right software to design extruder screws, currently i’m using Solidworks 2018. I face a lot of issues in that.I wanted to know any specialized software for that purpose.

I was doing some Dywidag details for some rock anchors and had posted my details in a cad forum. A week later I was looking for some additional coupler details and came across my details on a Czech site… they wouldn’t allow me access.

Go figure.

I’m not sure what you want. Can you draw an end with a ‘fixed length’ and draw a segment also with a fixed length and copy the segment multiple times to the end using lisp, or something. I don’t do 3D other than for simple images. You can even include the centreline.

Dik