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--- isel_icv4030:engraving_detailed_images [2023/01/25 07:43] – [Using Rhino] formlab
+++ isel_icv4030:engraving_detailed_images [2023/04/03 06:43] (current) – [Using Rhino] formlab
@@ Line 57: / Line 57: @@
   * If extrusion fails
-    * shift + click the top (and bottom) surface and delete
+    * This might happen when there's a small surface present. To find and delete it, do the following:
+    * shift + click the top (and bottom) surface and delete them.
     * select the walls and 'explode' those.
-    * select the walls again, but now one by one: click + shift click, etc...
+    * enter the command ''selsmall'' and add a value that's a fraction larger than the object's extrusion. For example: a shape is extruded 2mm, enter 2,001. This finds shapes up to that length. So the smallest surfaces are found this way.
-    * if you selected everything, hide it with ''alt + h''
+    * if the command found one or a few super small walls, delete them. If there's no gap, that should be good enough to go. If there's a gap, try adjusting the surfaces boundaries to match or fix the gaps with the ''connect surfaces'' icon.
-    * maybe / hopefully there are tiny vertical wall-pieces that were so small you missed them when you were selecting everything one by one.
-    * Look at them,
-    * memorise their positions
-    * delete them
-    * Unhide the rest of the walls with ''ctrl + alt + h''
-    * fix the gaps with the ''connect surfaces'' icon
     * When the walls look OK again, click the icon ''surface from planar curves'', then select the tops of the walls and press OK.
     * Repeat for the bottom parts if necessary