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CAD tip CAD tip # 6537:

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Q - question

How to model a 3D thread (screw) in AutoCAD?

A - answer Although 3D threads (nut/bold) are usually not modelled in detail and CAD applications like Inventor have internal functions for representing threads, sometimes you may need to really model a true 3D thread in AutoCAD.

The easiest way is to use a combination of the HELIX and SWEEP modelling commands.

First prepare a profile of a single thread (e.g. a filleted triangle), 3DROTATE it to be perpendicular to the sweep path, and then sweep this profile along a 3D spiral created by the Helix command.

In older versions of AutoCAD you can also use the 3DSPIRAL Lisp utility (see the Download section).

You can also use of the threaded blocks in our CAD blocks library.

ACAD
100% *  CAD 
13.2.2009    25406x  
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applies to: AutoCAD ·

See also:
Tip 10219:Can Autodesk Fusion 360 make use of multicore CPUs?
Tip 10208:How to model a 3D thread in Inventor?
Tip 9937:Preset displaying of thread features in Inventor 2015 drawing views.
Tip 9518:How to model a true 3D thread in Fusion 360?
Tip 8276:Excel 2010 compatibility with Inventor 2011/2012.


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