It is rare for a CAD program to be able to modify .STL files. In Fusion360 there is a way to transform STL back into editable CAD and I think Onshape can do the same.
An analogy is that you can edit text with a word processor but if you take a photo of the document with your cell phone, the text is now an image and you would not expect to be able to edit it. STL is like a photo. It is just 3D pixels and has lost all the lines, angles, and circles and points that the CAD file had. Yes there is OCR to take images back to editable text and as said some CAD systems can import STL files back into CAD. STL never translate back perfectly even in the best case. So, Don't give FreeCAD a "fail" for this. On Mon, Jun 29, 2020 at 1:56 PM Gene Heskett <[email protected]> wrote: > > And loaded up the .stl for that half a pulley I tried to make a hub for > yesterday, but I didn't get a touch off right and it was about .5mm too > small for the plastic. FreeCAD rendered it nicely, but I couldn't get it > to measure anything, nor modify it in any way. > > So I went back to OpenScad and reworked it. Then exported the .stl, > loaded it up into the slicer, set it for super quality, and saved the > gcode without all the branding so I got a name short enough to display > on the ender's display. > > So FreeCAD failed its first test here. > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
