Novice user needs help with Loft
dana_kelley262
Member Posts: 31 ✭
I am trying to great a rudder shape using loft. Being a novice OnShape User I looked for a similar design to replicated the process. The first link is a similar design copied. The second is my attempt.
The loft fails with left and right Guides selected. Selecting one guide works for that edge resulting in a misshaped result. Need both guides to form correct shape.
Reference: https://cad.onshape.com/documents/54006cbcf688281ffceffb56/w/6e8002330e379170b673a90c/e/0e8ecd95cadd9398ec08486b?renderMode=0&uiState=62b31d3edbd03e5aa9a098b6
Attempt: https://cad.onshape.com/documents/0d2146d45d70f1e7be0ed802/w/542cb690e5f1e2f5ea53339b/e/fd91fbda52f883169dc72eb3?renderMode=0&uiState=62b31f71995a2a198651150a
The loft fails with left and right Guides selected. Selecting one guide works for that edge resulting in a misshaped result. Need both guides to form correct shape.
Reference: https://cad.onshape.com/documents/54006cbcf688281ffceffb56/w/6e8002330e379170b673a90c/e/0e8ecd95cadd9398ec08486b?renderMode=0&uiState=62b31d3edbd03e5aa9a098b6
Attempt: https://cad.onshape.com/documents/0d2146d45d70f1e7be0ed802/w/542cb690e5f1e2f5ea53339b/e/fd91fbda52f883169dc72eb3?renderMode=0&uiState=62b31f71995a2a198651150a
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Best Answer
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You have a great start. With a few more tweaks, you are there. There are many different ways to do this. One more simple approach would be to split the loft into two different lofts. Keep an eye on your inputs and start / end conditions. "Match tangency" and "Match curvature" only apply if the profile you select is part of a body not a sketch. "Normal to profile" can be applied if a sketch profile is selected.
Here is a great place to learn advanced tricks and best practices Onshape Learning Center.
https://cad.onshape.com/documents/d077cb2d2e343ef65845f9f3/w/c9e87560ce94ec973b1f3fbf/e/7b961ce045b8ee532c8a37ad?renderMode=0&uiState=62b327ecdbd03e5aa9a0b765
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Answers
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You have a great start. With a few more tweaks, you are there. There are many different ways to do this. One more simple approach would be to split the loft into two different lofts. Keep an eye on your inputs and start / end conditions. "Match tangency" and "Match curvature" only apply if the profile you select is part of a body not a sketch. "Normal to profile" can be applied if a sketch profile is selected.
Here is a great place to learn advanced tricks and best practices Onshape Learning Center.
https://cad.onshape.com/documents/d077cb2d2e343ef65845f9f3/w/c9e87560ce94ec973b1f3fbf/e/7b961ce045b8ee532c8a37ad?renderMode=0&uiState=62b327ecdbd03e5aa9a0b765
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Thanks @MichaelPascoe!1