https://forums.autodesk.com/t5/3ds-max-modeling-forum/extruding-solid-between-two-or-more-surfaces/m-p/9400170#M5913 <P>Go into Sub Object Mode Border, which will grab the border for that area. And there is a tool called cap. It will fill the hole and you can go about using the CUT tool to connect all the interior geo.</P> Wed, 25 Mar 2020 18:43:04 GMT Anonymous 2020-03-25T18:43:04Z https://forums.autodesk.com/t5/3ds-max-modeling-forum/extruding-solid-between-two-or-more-surfaces/m-p/9394122#M5912 <P>Hi all,</P><P>I imported to 3ds Max file form AutoCAD Civil 3D with two surfaces:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="image.png" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/744534i688EED964ABD9966/image-size/large?v=v2&amp;px=999" role="button" title="image.png" alt="image.png" /></span></P><P>I want extrude solid between two surfaces and I'm "zero" in 3d Max - cam smb provide materials/videos how I can do it?</P><P>Second question - may I choose algoritme of creation MESH (because classic Civil 3D's command for getting solids is bad and I can't import that solid to FEA's software [<STRONG>finite element analysis</STRONG>] and create there FEA model from that geometry).&nbsp;</P><P>I attach file (created by Max 2020) to tests</P> Mon, 23 Mar 2020 16:27:36 GMT https://forums.autodesk.com/t5/3ds-max-modeling-forum/extruding-solid-between-two-or-more-surfaces/m-p/9394122#M5912 georg.grebenyuk 2020-03-23T16:27:36Z https://forums.autodesk.com/t5/3ds-max-modeling-forum/extruding-solid-between-two-or-more-surfaces/m-p/9400170#M5913 <P>Go into Sub Object Mode Border, which will grab the border for that area. And there is a tool called cap. It will fill the hole and you can go about using the CUT tool to connect all the interior geo.</P> Wed, 25 Mar 2020 18:43:04 GMT https://forums.autodesk.com/t5/3ds-max-modeling-forum/extruding-solid-between-two-or-more-surfaces/m-p/9400170#M5913 Anonymous 2020-03-25T18:43:04Z