What format is the original model? To convert to STL the model has to be solid or "water tight". No missing faces and all one piece. A bunch of solid parts 'glued together' can cause problems like what you're experiencing, especially if the parts intersect. Other issues that can crop up with 3D CAD files are disconnected vertexes and edges that look like they're connected. Doubled lines, vertexes, and faces. Backwards normals (what's supposed to be the outside of a face specified as the inside) and various other screwed up stuff. I dread having to work with stuff people have designed in Sketchup. The software may as well be called screwup because of how easily people can create bad geometry with it.
Try this parametric pulley customizer to get a model that should be 3D printing sympatico. https://www.thingiverse.com/thing:16627 On Thursday, June 4, 2020, 10:24:43 AM MDT, Gene Heskett <[email protected]> wrote: On Thursday 04 June 2020 08:13:53 andy pugh wrote: > On Thu, 4 Jun 2020 at 12:20, Gene Heskett <[email protected]> > wrote: > > Preview has a camera view angle that takes the image off the bottom of > > > the screen, long before the magnification has reached a usefull > > level. > > Shift-drag, Ctrl-drag and Alt-Drag all do different things to the > preview. Crazy. But the build in progress is totally screwed, theres a post of 50% infill where the shaft hole s/b, and the wall around the shaft is missing! Taking the raft off took most of the infill with it because there was no solid bottom or top to a 12mm tall hub that measures 12.5mm tall now. The only conclusion I can reach is that I've done something to the src file, which I've been doing a save-as to the modified code before handing it off to the slicer each time. So go back to the original src and start all over. Which I did, but stopped that build when it was obvious it was going to do the same miss-build again. 1. no bottom hub wall 2. no wall around shaft or nut pocket 3. nut pocket 100% infilled 4. middle of whats supposed to be an 8mm shaft infilled 5. Scan attached for the experts perusal, whats fubared in cura? But I think I'll go get the tooth count I need to put the 2nd motor on the Sheldon's Z, and see if I can find an alu sprocket for that. Cheers, Gene Heskett _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
