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How to make a Curved Part from three Sketches?

So, i am designing something and am probably way overcomplicating things, but i'd like a nice curvature on the Part. I've sketched the side-profile i desire in all three dimensions, but now i am unable to get that curve.

Part.PNG

I've tried Sweeping it, but there i either do not get the desired shape or the Sweep intersects itself and doesn't generate at all. Lofting doesn't seem to work either, as there i just can't get the tool to generate anything at all.

Best Answer

  • Matt_ShieldsMatt_Shields Member, Onshape Employees Posts: 876 PRO
    Answer ✓

    A loft should work. Three tips: 1) start with surfaces then thicken, enclose, etc. 2) take advantage of symmetry and create parts of the finished design then mirror. 3) make sure your guides intersect your loft curves (use the pierce constraint).

    image.png

Answers

  • Matt_ShieldsMatt_Shields Member, Onshape Employees Posts: 876 PRO
    Answer ✓

    A loft should work. Three tips: 1) start with surfaces then thicken, enclose, etc. 2) take advantage of symmetry and create parts of the finished design then mirror. 3) make sure your guides intersect your loft curves (use the pierce constraint).

    image.png
  • martin_kopplowmartin_kopplow Member Posts: 1,136 PRO

    That's not even a super compliced case you have here, but there are a few contradicting or underdefined things in your design. You will need to add a few more 'hints' for the software to do someting meaningful.

    Try this:

    grafik.png

    Then loft again. Build only the massive part, use shell for the inner side.

    (And, since this thing is symmetrical to two planes, only build 1/4 of it, then mirror-unite it later. That saves a lot of work and problems.)

  • benjamin_köpplerbenjamin_köppler Member Posts: 2 EDU

    Big thanks to both of you, it worked! I guess i just didn't understand the Loft function… Well, now i can cover a few nuts and bolts (hence the Hexagons)

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