On Saturday 27 March 2021 12:12:43 Gene Heskett wrote: > Greetings all; > > I'm in a try it mood this morning while I wait for it to warm up > enough I can go move some dirt in the back yard to make a level place > to put a slab of concrete for a small plastic shed I bought to keep my > new last year, rider in out of the weather. > > So I've downloaded a bearing maker from thingiverse and have modified > it to make a huge bearing that will fit around the outside of the > moving spline. > > I had to cut the brim setting down to 2mm just to get it to fit the > build plate width of this dremel printer, but it is building now, just > to see if it will actually work. Takes a bit over 6 hours. > > The next roadblock qestion I'll have to answer yet is will it fit > inside the alu I bought for a housing. if it will, I'll make another > somewhat smaller one for the output end of the shaft. Pix from > openscad shrunk by gimp attached. > > Here, "ball" is false advertising, the races have a raised ridge in > the center, which fits in the "handle" area in the middle of the > dumbbell shaped bearing roller. > > If it doesn't work, shrug. But its building now for the next 6+ > hours. And I've another roll of PETG near in case it uses all of the > remaining stuff on this spool. > > It seems plate adhesion is better if the machine is kept warm for a > while before its actually allowed to start the print, so I warmed it > up, verified the level & generally killed ten minutes. Seems to have > worked. > > Translucent PETG, 234C nozzle, 77C bed, stick glue. > > Arthritic fingers crossed. > Didn't do any good, I've now tried about a dozen times to get it done, but its either skipping the ends of the rollers or ripping them out of the plate glue, first pass was the best, got about 3mm built, nozzle plugged.
Dremel apparently doesn't think the average user is to be trusted changing a nozzle, and they really went out of their way to make it difficult, so it took me about 4 hours to get it out, take it to the cookstove and burn it clean which took a while, then I dug into Dee's pincushion and found a sewing needle only 3/4" long, about 1/16" inch came out of the nozzle and I didn't push it, but I did use it to clean the ashes out of the back of the nozzle. wrapped it in teflon tape and put it back together but left the big cover off as it has nothing to do with the air flow. Thats very well designed. And I don't think I damaged the nozzle. But I can't get into the 2nd layer of a build either. This is clear petg, but I simply cannot get it to stick to the glass. At any speed or temperature including dremels recommended 80C for bed temp. I get good adhesion on the ender 3. When it works, it works very well, but there is something odd about the glass plate. It needs a heavy coat, double coated kidee glue stick, the purple stuff, to even think about sticking. but even that is failing with this build. > Take care and stay well everybody. > > Cheers, Gene Heskett 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
