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how to model that in onshape ?

sergeserge Member Posts: 6
Hello,

I couldn't find out how to build this in onshape. 
Note : the draft won't work because the side of each tooth is parallel.

Thank you

Serge

Best Answers

Answers

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    sergeserge Member Posts: 6
    thank you very much DaVicki :)  It does the trick indeed ( I will have to make 4 rotate face) .
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    sergeserge Member Posts: 6
    ha yes ! i'm impressed :) thank you . I'm still a little new to onshape and can't find good strategies with some models. Even we did the all smartrapcore here ( I'm smartfriendz guy ) , there is still a lot to learn with this wonderful tool. 
    Thanks
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    andrew_troupandrew_troup Member, Mentor Posts: 1,584 ✭✭✭✭✭
    edited October 2015
    Actually, something we both missed - DaVicki's excellent suggestion works just fine with "Draft" (which the OP had considered and rejected) instead of "Move (Rotate) Face"
    https://cad.onshape.com/documents/a83345d4bdc74ca993f680d5/w/2caf6afc558b4a4385ee338e/e/bc1ad38b07514f12acbb989d

    I also took the further liberty of extracting the Midplane profile from the solid shape resulting from his (modified) method, and derived those sketches into a second Part Studio to demonstrate my alternative "Extrude at Angle" method, and found it was not quite as simple in practice as in theory : I had to add a "Cut-Extrude" to trim the end.

    Thanks, both of you, for the intriguing puzzle.
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    andrew_troupandrew_troup Member, Mentor Posts: 1,584 ✭✭✭✭✭
    edited October 2015
    On Edit:

     I didn't look carefully enough at the OP's geometry but focussed on @DaVicki 's model - as 
    michał_1 points out, there appears to be a draft angle on all four faces for the OP, although possibly steeper on leading vs trailing faces (but not a problem - just needs two draft features if so)


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    sergeserge Member Posts: 6
    ha yes Andrew ! Now i feel like an idiot ... simply draft :)  you didn't miss anything. 
    thank you so much 
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