On Sunday 06 September 2020 10:25:34 Art Eckstein wrote: > At 9/6/2020 10:04 AM, Gene Heskett wrote: > >Greetings all the 3d printer people hiding in the bushes; > > > >I have found the best material to make flexgears out of, TEPG. > > > >But I've a problem, an ender3 won't go above 260C for nozzle temp, > > and that is restricting the build speed to around 30" max, because > > it can't melt the plastic fast enough to make a solid build while > > moving faster. > > > >Out of the parts for this version of a harmonic drivem I'd like to > > make the body cap with the motor mounted to it, and the bearing > > carrier because that would allow full current to the motor, and the > > flexgear out of TEPG because of its flexing without failure ability. > > The rest of it can be PLA as those parts don't have the motor heat > > telegraphed into them. > > > >So I'm now looking for info on an affordable printer that can run the > > bed at 80c, and the nozzle at 275 to 280C. This ender3 pro > > electronically limits at 260C, and takes a long time for the bed to > > hit 70C. And there are advisories about not going above 240 with > > the OEM bowden tube. And I have a piece in the hot end that I'll > > replace with the blue capricorn between this print and the next, > > because I am running at the 260C limit, and 70C bed just to get bed > > adhesion. > > > >Is there such a beast more suitable for TEPG? > > > >Thanks all. > > > >Cheers, Gene Heskett > > Long time lurker out here that does some PETG > (which I think is what you mean?) and my advice > would be to do two things to your printer. > 1. Replace the hot end with a Micro-Swiss all > metal hot end. This will allow much higher temps, > but of course you will need to mod the firmware to allow this.
Already done it Art, but I put the fixed OEM hot end back on, I couldn't stop the MS hot end from freezeing shut in the middle of a 10 hour print. The fixed one doesn't leak, see previous reply for a blowby blow on that. > 2. Insulate the underside of your bed. On one of > my printers, the factory installation would > struggle to get to 65°C. I insulated with some > ceramic blanket gotten off our favorite auction > site and it will verifiably get to 123°C! What is it called on fleabay? > This will be a cheaper than buying a new printer. > There is also talk about loosing magnetism in the > bed if you elevate the temp much, but I am > running mine at 85° on an Ender 5 with no problems. I'm on glass anyway. With a haze of kids glue stick, adhesion just goes away if colder the 260-70. TEPG also warps on the bottom so that temp must be held for the prints duration else it comes loose, wrecking things loose. Thanks Art. > HTH 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
