Modeling Screw Threads

[burkar0615]

Greetings all.

I'm having a difficult time figuring out how to properly model a screw thread around the point of the screw.

I have gotten the coil to taper to the point, however, I'm unable to get thread to terminate properly. 

Essentially, the pitch remains the same as it moves down the taper, but the major/minor is diminishing until it terminates cleanly at the point.

Any help or direction would be greatly appreciated.

[kelly.young]

@burkar0615 If you are doing a single diameter shaft with a standard 135° drill point it is easy to accomplish with the coil command and setup your groove to cut. If you have complex geometry for something like an auger, propeller, or cement mixer (there are a few cool examples of these in the forum discussions) using surfaces to prepare helps. Attached is a quick attempt to give you a better idea of commands you may want to use.

[mcgyvr]

@kelly.young

That post was from 5+ years ago..

krazykiwi whatever necroposted this thread..

[kelly.young]

Maybe @burkar0615 will be enticed to come back and let us know if he figured out his iLogic screw setup! @1krazykiwi keeping the "thread" alive. 

[danmachen]

Perhaps this was developed after the original post, but this tool from coolOrange is a dream for thread modelling (if you need to model any threads in the first place).

https://apps.autodesk.com/INVNTOR/en/Detail/Index?id=2540506896683021779

Its available for for free on the Autodesk App Exchange!