ewanrob Posted September 9, 2016 Share Posted September 9, 2016 Hi there, new to the board... I'm using the 3d Modelling in AutoCAD 2017 in anger for the 1st time really, the company I work for manufacture large diameter mild steel pipework. We make quite a few specialized fittings, (Lobster back bends, Reducing Tees etc) I have introduced a branch into a Lobster back on its centrelines, I'm trying to slice the branch on the inside of the bend by using the branch inside surface. But it keeps coming up with the message "no surface selected" even though it has highlighted it. What am I doing wrong ? E Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 9, 2016 Share Posted September 9, 2016 Attach a copy of the drawing to your next post and someone here will take a look at it. If the file size exceeds the max allowed use a file sharing website like DropBox and post a link to it here. Quote Link to comment Share on other sites More sharing options...
ewanrob Posted September 12, 2016 Author Share Posted September 12, 2016 Here you go, hope you can open it 1067 LBB 900BRCH.dxf Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 12, 2016 Share Posted September 12, 2016 I was expecting a 3D drawing (preferably created using solids). Quote Link to comment Share on other sites More sharing options...
ewanrob Posted September 12, 2016 Author Share Posted September 12, 2016 Hmmm, I wished I would have tried opening 1st....will try again Quote Link to comment Share on other sites More sharing options...
ewanrob Posted September 12, 2016 Author Share Posted September 12, 2016 Try again, see if this one works 1067 LBB 900BRCH.dwg Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 12, 2016 Share Posted September 12, 2016 Never mind. This is what I came up with. 1067x900LBSTR_BRNCH.dwg It's a solid not a surface. Saved in 2010 file format. Quote Link to comment Share on other sites More sharing options...
ewanrob Posted September 12, 2016 Author Share Posted September 12, 2016 Yep pretty much same as mine, although yours is in Wireframe where mine was in Realistic. How did you slice the straight pipe as it came through the segmental bend..or do you extrude upto a surface ? Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 12, 2016 Share Posted September 12, 2016 The choice of visual style has no bearing on the subject. I sliced the straight pipe with the lobster back. Quote Link to comment Share on other sites More sharing options...
ewanrob Posted September 12, 2016 Author Share Posted September 12, 2016 Yep, I realise that...but when I try to slice it says no surface selected when I click on the internal surface of the bend. So I assumed as it was a solid it wont do it, did you not have to change anything ? Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 12, 2016 Share Posted September 12, 2016 While the final result is a solid I created the initial geometry using surfaces. Quote Link to comment Share on other sites More sharing options...
ewanrob Posted September 12, 2016 Author Share Posted September 12, 2016 Ok, so my question is what can I do to the solid I have created to enable me to edit it. Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 12, 2016 Share Posted September 12, 2016 (edited) You would need to create a surface matching the curved profile of the intersection of the two pipes to slice the branch. This could be done using the Extract Edges command to obtain the edges then use the EdgeSurf command to create the surface. Edited September 12, 2016 by ReMark Quote Link to comment Share on other sites More sharing options...
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