https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867863#M41799 <P>Are there any unresolved issues highlighted in your Timeline?</P><P>Why not model this as sheet metal from the start?</P> Mon, 03 Apr 2023 11:41:37 GMT TheCADWhisperer 2023-04-03T11:41:37Z https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867749#M41797 <P>I converted a solid into a sheet metal, then when I unfold the sheet metal or created a flat pattern, some part of it is unfolded nicely but some part of it just turns into bananas&nbsp;<span class="lia-unicode-emoji" title=":loudly_crying_face:">😭</span><span class="lia-unicode-emoji" title=":loudly_crying_face:">😭</span><span class="lia-unicode-emoji" title=":loudly_crying_face:">😭</span>.It did not flatten it properly.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2017406_0-1680518018567.png" style="width: 600px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1197159iF6C17C394AF703EE/image-size/medium?v=v2&amp;px=400" role="button" title="2017406_0-1680518018567.png" alt="2017406_0-1680518018567.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2017406_1-1680518103539.png" style="width: 600px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1197161iBFC2724884EC8444/image-size/medium?v=v2&amp;px=400" role="button" title="2017406_1-1680518103539.png" alt="2017406_1-1680518103539.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 03 Apr 2023 10:42:47 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867749#M41797 2017406 2023-04-03T10:42:47Z https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867822#M41798 <P>OK, problem found, there is an curve edge which is not tangent, probably a mistake when I am sketching.&nbsp;</P> Mon, 03 Apr 2023 11:16:24 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867822#M41798 2017406 2023-04-03T11:16:24Z https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867863#M41799 <P>Are there any unresolved issues highlighted in your Timeline?</P><P>Why not model this as sheet metal from the start?</P> Mon, 03 Apr 2023 11:41:37 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/flat-pattern-created-is-not-flat/m-p/11867863#M41799 TheCADWhisperer 2023-04-03T11:41:37Z