"Twist" a part

robin_van_gijseghem

Hello,

I have just transferred from using Autodesk Inventor.

I am used to creating a 3D sketch, in which a Helix line was drawn.
Then using sweep I would extrude the part in a twisted way.

Any clue as to how I would do this in OnShape?

Sory if this is a duplicate, I couldn't find much about it.

noa

@robin_van_gijseghem you can learn how to use our helix feature here and our sweep feature here. If you have any questions about how to use these tools, please post again here!

Jake_Rosenfeld

Hi Robin,

Are you trying to do something like this?

https://cad.onshape.com/documents/5d6636d3681a75c0991a40e8/w/1948a9dde57f8e046f053ae3/e/fefdbb6b38356cd70385eea3

Onshape has helix and sweep features so you should be able to accomplish what you are trying to do.  If this is not what you mean by "Twisting" a part please post a screenshot of your old work or some other example of your goal.

https://cad.onshape.com/help/Content/helix.htm
https://cad.onshape.com/help/Content/sweep.htm

If a helix was just an example and you want more fine control of your sweep path, we also have curve features such as Bridging Curve, Projected Curve, and 3D Fit Spline which should help in your modeling.

https://cad.onshape.com/help/Content/bridgingcurve.htm
https://cad.onshape.com/help/Content/projectedcurve.htm
https://cad.onshape.com/help/Content/3d_fit_spline.htm

Hope this helps!

mahir

In case this is closer to what you mean by "twist", here's another example.

https://cad.onshape.com/documents/57acdfaae4b005c413ed9b6f/w/3fd585a46d3af1b3ba413c53/e/f813cd6a214525be95f7ea75

philip_thomas

I love going last!
@robin_van_gijseghem - sweep (or loft) along a helix with twist is doable using the public Custom Feature 'Helix^2"

https://cad.onshape.com/documents/f437577a13ebbc350129b4a0/w/1873523e917e24872187e57a/e/02b23d7313b3a5f3279b31f7

WARNING - ONLY FOR THE SERIOUSLY "TWISTED"

philip_thomas

@mahir - Your "sandbox" document is awesome!

mahir

Thanks, Phil I

brian_jordan

philip_thomas said:

@mahir - Your "sandbox" document is awesome!

@mahir I second that. I am relatively new to this and am working on a fairly ambitious (motorsports related) project alongside a bit of 'fun' 3D printing stuff. Following your method and logic as shown in the help you have given on these forums has been enormously helpful; and now I find it's all in one, easy reference, document. Thank you.

mahir

Very kind, @brian_jordan. Happy to help.