shaise / FreeCAD_SheetMetal

A simple sheet metal workbench for FreeCAD
http://theseger.com/projects/2015/06/sheet-metal-addon-for-freecad/
GNU Lesser General Public License v2.1
193 stars 56 forks source link

Extruded cutouts #303

Open pierreporte opened 6 months ago

pierreporte commented 6 months ago

SMSketchOnSheet can be used to make cutouts on sheet metal parts but it is very simple: shapes are drawn on the flat sheet. Users can’t easily remove material where an object is going to pass through the cutout. Using PartDesign_Pocket to do so can work but the cross section isn’t right. It needs a new feature that cut the part in a correct way for manufacturing. The picture belows illustrates the feature request.

cutout

The sketch represent the object that the part need to accomodate for. It isn’t necessarily on a face nor parallel to one. Like PartDesign_Pocket, there should be an option like “up to first”, “up to surface”, and “up to last”. A and B are where the sheet is always getting cut. B and E are where the sheet is getting cut if the user selects the option to cut at the intersection of the cutout and the reference plane of the sheet metal. C and F are where the sheet is getting cut if the user selects the option to remove all needed material. Of course it should work if bends are in the projected space of the sketch.