Vagulus Posted May 28, 2014 Share Posted May 28, 2014 I am attempting to draw an internal Archimedes' Screw in Inventor 2015. Internal Screw.ipt 3D-Sketch --> Sweep --> Type=Path & Guide Rail --> Output=Surface --> Vertical line as profile All OK Cannot select construction line as Path. What have I done, or what am I doing, wrong? Quote Link to comment Share on other sites More sharing options...
JD Mather Posted May 29, 2014 Share Posted May 29, 2014 Delete the 3D sketch. Select the Coil command and set the output to Surface. Select the Coil construction line as the axis. Set the desired Height and Pitch (turns). I would never ever use the 3D sketch helix - I don't understand why it even exists since it is difficult to fully constrain/edit. Quote Link to comment Share on other sites More sharing options...
Vagulus Posted May 29, 2014 Author Share Posted May 29, 2014 Bingo! Thanks JD Quote Link to comment Share on other sites More sharing options...
JD Mather Posted May 29, 2014 Share Posted May 29, 2014 You only need 1 simple sketch to define the coil. Coil_jd.ipt Quote Link to comment Share on other sites More sharing options...
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