Drawing a thread in AutoCAD

[chrisinleedsuk]

Hi,

Does anyone have a routine for drawing a screw thread in AutoCAD? I have an AutoLISP routine for a coil but it won't draw a true thread shape easily.

Cheers in advance,

Chris.

 

[ajack1]

Chris, are you working in 2D? If so why not just draw the OD and ID to show a thread, it is the industry standard and how most (if not all) 3D packages show threads as 2D drawings?

 

[Pressed]

[URL unfurl="true"]http://new.cadalyst.com/code/browseyear.cfm?fullyear=1993[/URL]
[URL unfurl="true"]http://discussion.autodesk.com/thread.jspa?messageID=279217[/URL]
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Many more available if you use a search engine.

But I agree the plain jane 4-dashed line 2D version is the best all around way to draw a thread.

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