Are you certain that an STL is " just 3D pixels and has lost all the lines, angles, and circles and points that the CAD file had."? I thought that an STL file was made up of the coordinates of the vertices of triangles rather than pixels.
> -----Original Message----- > From: Chris Albertson [mailto:[email protected]] > Sent: Monday, June 29, 2020 8:54 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] I downloaded the latest appimage > > 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 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
