Adrian Rideout Posted September 12, 2008 Share Posted September 12, 2008 Can anyone help with the modeling of a Uniform deceleration helix with a decreasing width. Attached is the drawing of a customers part. I am having some difficulty modeling the helix. Any help would be appreciated. ACCC_D_48.pdf Quote Link to comment Share on other sites More sharing options...
Guest EricFoy Posted September 12, 2008 Share Posted September 12, 2008 My approach would be to use three helices: one to form the leading face of the groove, one for the trailing face, and one down the middle just to clear out any leftover material. You may not need the third one, but it looks like you will -just my quick guess. Use a custom cross section (this requires a little trial and error, but is doable). All three helices can use the same cross section, so once you get it producing the desired ID/OD, you can then just adjust the pitch parameters for each one to get the right fit. Use "Variable Pitch" and "Uniform Radius." I would start with the basic cylinder modeled, then drop the helix tool onto it, and select "Use Helix to Remove Material" on the Helix dialog. Get your first one working, then use the triball on it to copy the second and third ones. Quote Link to comment Share on other sites More sharing options...
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