For bad adhesion, glue sicks work well. The glue is thick and telegraphas a pattern to the part, Smoothing with wter helps. and then the heated bed dies the water. Covering the bed with blue paiter's tape works if you clean the tape after with alcohol.
The it thing is nozel hight. The paper feeler gage gets you glose but LOOKING at the bead that is layed down is the bet. The bead would be the full 0.4mm wide and not more with not plastic squished out the sides. The top for the bead should be flat, not rounded and this goes double for the bottom of the bead, The ideal first layer bead of plastic is rectangular in cross section aot 04mm wide and 0.15 tall. If it looks like a round noodle laying on the bed, the nozze is way to high. Also not the bed might not be a perfect plane but maybe a bowel or hill so some parts of the bed will just work beter. Print small parts on the flasted part of the bed. But glue, hair spray and tape is of no useuntill you can make rectangle cross section bead. For "adhesion method" I choose "skirt." it seems this would be usless because it draws a circle aroubd the part without even touching. But I always look and visually check the quality of the circle. If it is flat on top and not gaps between the lies the print will be good. "Skirt" is a good diagnostic. But "raft" is by far the easiest to make work. I bet you first layer loots like the right side of the photo on this page. Yo want a flat even plane on top of the first layer. The article is good. https://all3dp.com/2/3d-printing-first-layer-problems-how-to-make-it-perfect/ There is a lot I don't know. I've not yet started using glass. I will. I think I want about 4 sheets so I can swap. But stay with what you got. try glue stick. I found they come in different qualities. The Avery works the dollar store brand is junk. On Fri, Jun 5, 2020 at 12:05 PM Gene Heskett <ghesk...@shentel.net> wrote: > On Friday 05 June 2020 13:44:22 Karl Jacobs wrote: > > > Hi Gene, > > > > take the attached file for 5mm calibration steps and put it into Cura > > for slicing. This is about as simple as it gets for initial tests. > > Download > > https://www.thingiverse.com/thing:763622 for the benchy-boat torture > > test. After you optimized that, you are a master. > > Let me tell you that I admire your ambitious mind and perseverance, > > knowing your age. Respect! > > Karl > > > > Am 05.06.2020 um 19:30 schrieb Gene Heskett: > > > On Friday 05 June 2020 08:51:56 andy pugh wrote: > > >> On Fri, 5 Jun 2020 at 13:34, Gene Heskett <ghesk...@shentel.net> > > >> wrote: > > >> > > >> But before I try another 10 hour print, I'd like to see an improved > > >> much > > >> > > >>> better filled tooth profile, my guess is that its 10% or less, no > > >>> high strength fill behind what might be called teeth. I'd like to > > >>> see a 100% fill for at least 4mm behind the teeth, but cura isn't > > >>> doing any of that. Those teeth are 100% crushable all the way to > > >>> the bore reinforcement. > > >> > > >> I have a feeling that you are under-extruding. > > > > > > That was my impression also, so I sped up the extruder about 3% so > > > far. > > > > > >> Have you configured and calibrated the printer at all? > > > > > > The usual piece of paper to set nozzle gap, but adhesion is very > > > poor if its not dragging gently. Nothing for scale fine tuning > > > which seems to be dead on. The instructions I've found and printed > > > have largely skipped over most of the stuff I see in the menu's. > > > > > > Help appreciated, but ATM the place is running on Nat gas power and > > > has been since 09:42 am, an hour and a half ago. Power return is > > > auto with this standby setup, so I could restart another test print. > > > Anybody have a ready made file that will test & gage everything? > > > Seems like a huge thermal effect between hot and running vs cold > > > when doing the auto-home, and added an "offsets apply", whatever > > > that is after homeing. > > > > > > I've sped up the extruder feed, both in cura and in a menu I can't > > > find again on the printer, so it should be getting around 115% of > > > its starter value this time. > > > > > > Raised the start temps to 210 and 65, it lays one layer and drops > > > both 10 degrees for the rest of the run Made two bird nests laying > > > the raft, gave it a spot of hair spray. Stuck. Raised the extruder > > > speed and read thru the rest of the help in cura, so we'll see it > > > they know anything in about 6 hours. Or more, I also slowed it down > > > where it claimed better rendering. > > > > > > Thanks all. Stay well now. > > > > > > Cheers, Gene Heskett > > New problem, need temps and hot plate cleaning tutoring, its come loose 4 > times in a row in the 3rd layer of the raft laydown. Overture PLA says > 190-210 nozzle, 0-60C bed. cura says initial speed is 12.5, looks slow. > > Better guesses? > > 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 > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
