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"Cannot resolve entities" error with sheet metal tool

Hi I am very new here. I have been designing a backpack for cycling, and thought it would be a good idea to use the sheet metal tool to convert my 3d model of the pack to a flat pattern that I would use as a sewing pattern aid. When I go to use the sheet metal tool to convert the model to sheet metal, it gives me a "cannot resolve entities" error. What does this mean? How might I go about fixing this and is there a better alternative for what I am trying to do? Thanks a lot. I will attach the model below in a link.

https://cad.onshape.com/documents/8a3d5437b8443df2fcfe61d0/w/de79f0efbb8c0f09a1041e2b/e/3e3d1607ad22e3368b2d9f88?renderMode=0&uiState=67495b7380324d536822176f

Best Answer

  • lanalana Onshape Employees Posts: 709
    Answer ✓

    Sheet metal does not support revolved surfaces - it can only handle surfaces which can be unrolled onto plane precisely. Try Flatten surface functionality instead https://cad.onshape.com/help/Content/analysis_tools.htm#Flatten

Answers

  • lanalana Onshape Employees Posts: 709
    Answer ✓

    Sheet metal does not support revolved surfaces - it can only handle surfaces which can be unrolled onto plane precisely. Try Flatten surface functionality instead https://cad.onshape.com/help/Content/analysis_tools.htm#Flatten

  • nick_papageorge073nick_papageorge073 Member, csevp Posts: 839 PRO

    I don't have an answer for the pattern making (and I sew as a bit of a hobby). The transforms in your model are not needed. A circular pattern is a much simpler way to get the same shape. Also, why did you have the last transform where you changed the scale? Could you instead draw it the size you wanted?

    See this document for the circular pattern:

    https://cad.onshape.com/documents/33f01ef127f2173434be65c8/v/a156bf1350279c17fdc7c99c/e/d375ec6002ec2481dcac9e68

  • thomas_scalise189thomas_scalise189 Member Posts: 4

    Ah thanks!

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