https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049234#M361137 <P>&gt;&gt;<FONT color="#808080"><EM>Have you simply moved one part relative to the other and it then allowed a union?</EM></FONT></P> <P><FONT color="#000000">Yes...&nbsp;<SPAN>The idea is to&nbsp;</SPAN><STRONG>Move one body</STRONG><SPAN>&nbsp;slightly to ensure a&nbsp;</SPAN>proper intersection<SPAN>.</SPAN></FONT></P> Tue, 10 Mar 2026 12:33:55 GMT imadHabash 2026-03-10T12:33:55Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14048931#M361126 <P>Hi All</P> <P>&nbsp;</P> <P>Can anyone give me any pointers of why I'm struggling to form a union of these 2 parts please?&nbsp;&nbsp;</P> Tue, 10 Mar 2026 10:33:03 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14048931#M361126 bencharlton5C8EZ 2026-03-10T10:33:03Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049024#M361129 <P>Hi,</P> <P><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/16051751">@bencharlton5C8EZ</a>&nbsp;</P> <P>You have an incomplete intersection for both solid objects. The bodies might only be touching at a single edge or point rather than passing through each other. The idea is to&nbsp;<STRONG>Move one body</STRONG> slightly to ensure a <U>proper intersection</U> to finally get a successfully union result.</P> <P>Click on below image for more clarification...</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Uni.gif" style="width: 400px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1624635i4A7282968A0EADBD/image-size/medium?v=v2&amp;px=400" role="button" title="Uni.gif" alt="Uni.gif" /></span></P> Tue, 10 Mar 2026 10:22:17 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049024#M361129 imadHabash 2026-03-10T10:22:17Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049199#M361135 <P>Thanks Imad</P><P>&nbsp;</P><P>I have watched the video but I am not quite following.&nbsp; Have you simply moved one part relative to the other and it then allowed a union?&nbsp; I dont really understand as the parted clearly overlap considerably.&nbsp;</P> Tue, 10 Mar 2026 12:07:41 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049199#M361135 bencharlton5C8EZ 2026-03-10T12:07:41Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049234#M361137 <P>&gt;&gt;<FONT color="#808080"><EM>Have you simply moved one part relative to the other and it then allowed a union?</EM></FONT></P> <P><FONT color="#000000">Yes...&nbsp;<SPAN>The idea is to&nbsp;</SPAN><STRONG>Move one body</STRONG><SPAN>&nbsp;slightly to ensure a&nbsp;</SPAN>proper intersection<SPAN>.</SPAN></FONT></P> Tue, 10 Mar 2026 12:33:55 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049234#M361137 imadHabash 2026-03-10T12:33:55Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049299#M361139 <P>there is a lot of cleanup that would need to happen. For instance this is from a what i believe is meant to be a flat surface</P> <P>&nbsp;</P> <DIV id="tinyMceEditor_10511a4d5625b2TheCADnoob_0" class="mceNonEditable lia-copypaste-placeholder">&nbsp;</DIV> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="CADnoob AutoCAD help.png" style="width: 662px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1624697iBD8D349771511261/image-size/large?v=v2&amp;px=999" role="button" title="CADnoob AutoCAD help.png" alt="CADnoob AutoCAD help.png" /></span></P> <DIV id="tinyMceEditor_1050e32f21abc0TheCADnoob_3" class="mceNonEditable lia-copypaste-placeholder">&nbsp;</DIV> <P>&nbsp;</P> Tue, 10 Mar 2026 13:37:49 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049299#M361139 TheCADnoob 2026-03-10T13:37:49Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049307#M361140 <P>But I believe them to be correctly aligned with each other as it is - if I move one then they wont be any more?&nbsp; Apologies if I misunderstand.</P> Tue, 10 Mar 2026 13:41:48 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049307#M361140 bencharlton5C8EZ 2026-03-10T13:41:48Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049308#M361141 <P>Where abouts is that please?</P><P>&nbsp;</P><P>I'm fairly new to this (as you can probably tell!) and trying to produce this (to me) complex shape has tested me a little!</P> Tue, 10 Mar 2026 13:42:56 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049308#M361141 bencharlton5C8EZ 2026-03-10T13:42:56Z https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049323#M361142 <P>The idea is to make a little bit more intersection between the two parts (overlap), So you can successfully complete Union command.</P> Tue, 10 Mar 2026 13:51:23 GMT https://forums.autodesk.com/t5/autocad-forum/unable-to-form-a-union-of-two-3d-objects/m-p/14049323#M361142 imadHabash 2026-03-10T13:51:23Z