On Friday 05 June 2020 10:50:38 Martin Dobbins wrote: > Quick thought on the teeth with a metal flange. Would it be possible > to 3d print just the teeth and then have two metal flanges that make a > hub and "enclose" (sandwich) the teeth? > > Martin > > ________________________________ > From: Chris Albertson > > > Thats cute. But that would likely need to be made on a resin printer > > as this one from what I've seen so far, simply cannot do that fine a > > detail. > > My "cut" on this would work because the glue joint is hidden inside, > Andy's is smart but does place the glued joint on a working surface. > > > Someone was right, I did have "mold" checked. Uncheckd and new slice > > made, no other changes. But perhaps 3 hours to finish this one, > > One advantage of hollowing out the pulley with a 24mm hole is the > greatly educe print time. I only print the our 5mm of the pulley. > I'm printing four ofthem, four-up at a time now.
What generator software? Openscad, using the thingiverse parametric .scad files, cannot render a shaft of more than 9.9mm's, else we could do this by enlarging the shaft, so all we'ed have to print was a ring of teeth. > > but its > > up into the pulley teeth but the threads its laying are completely > > random, no teeth, just a rough surface with no real pattern. > > Are these "teeth" the ones that engage the belt or the ones that > engage the set screw? Printing a threaded horizontal hole is going > to be way-hard with 0.4mm walls for this just make an undersized plain > hole and then tap it by hand. Or just as well, let it try to make > threads then clean it up with a tap. Vertical hones print better. > > With standard threads in metal, every cross-section is a perfect > circle. A vertical hole is just a stack of circles, something the > printer can do. But horizontal holes have "roofs". The printer can't > print over air so it adds support material inside the hole. I'm sure > this is what you see, In Cura's preview support is blue. > > It is possible to selectively turn supports on and off so the > horizontal holes are not filled with support. But it is a lot of work > I use a hex key to punch out the support from holes. > > If the messed up teeth are the belt teeth then I'm at a loss without a > photo. > > > And no, > > its not loose on the hot plate. : > > -- > > Chris Albertson > Redondo Beach, California > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
