On Friday 17 July 2020 19:14:13 Gene Heskett wrote: > On Friday 17 July 2020 18:26:24 [email protected] > > wrote: > > On 2020-07-17 23:03, Gene Heskett wrote: > > What I've found on the web seems to say that black > > > > > PLA needs more heat for normal stuff and even more for starter > > > adhesion. > > > > I use a fair amount of black PLA+, and run my Anet A8 at 225 nozzle, > > 60 bed. I have found some variation in temperature for different > > colours, but nothing that would cause problems here (black, white, > > red, blue). Note this is PLA+ rather than straight PLA, but other > > users I talk to seem to have success with PLA and pretty much the > > same temperatures. I gave up on rafts: too much cleaning up after > > the print has finished. I use a glass bed (attached with crocodile > > clips) and lay down a coat of strong PVA glue, mixed 3 parts glue to > > 1 part water. Then I use a brim, one layer high. Works a treat. In > > fact it takes a bit of knocking to get it off the glass (run it > > under hot water, and swipe the brim layer with a large kitchen > > knife. The same glue works just fine with the aluminium plate bed. > > > > The Anet is basically the same as the Ender, but cheaper (and > > probably not as refined). > > My nozzle is 0.1mm (4 thou) off the bed at Home. > > I may be a little higher than that on this run. And as soon as it > started the nozzle fan, it froze half up and started stretchng strings > across the open center as it tried to lay down the spockets lower > flange. More heat and more PLA feed. Reslice for an even slower nozzle > fan, and up the E-steps/per 100 mm another +10, and reset the nozzle > temps up another 5C to start and 10C` to run. But find some of that > belt and see if I'm making it the right size, It was small for XL > stuff when I made a 32 tooth for another project, had to adjust the > scales of both x and y up a ways, well over 2%. > > > Large prints can take a long time, but I notice that a low infill > > percentage still provides decent strength for most jobs, and speeds > > things up. I usually print at 0.2mm layer height, unless I need fine > > detail. That keeps run times a little shorter. > > > > Other users report that the best prints seem to occur when the > > ambient temperature in the room is high. I print in a cold room (big > > garage), but PLA doesn't seem to mind. I think ABS would. > > I'm in AC, about 78F, haven't tried ABS. But I'm also looking for a > box to cover it with. > And I just found a setting that was mucking up the accurcay, Cura, down near the bottom of the list and hidden under an option disappearing menu, has a minimum feature size setting and it was 1.0mm! Reset that to .25mm and the sprocket teeth are now much better rendered.
That, and I found on the spool label, typical temp settings for this PLA brand, but its printing much cleaner 5C above that. And I've found that getting a raft base off it, wrecks the lower flange, so I'm back to a small brim, a 225C ejector, 75C bed starter, and 220/70 running temps. And close enough to the bed that I can see thru the first layer if I want it to stick. And still running low on plastic even at a 250.00 E-feed rate. It takes around 5 minutes of knob spinning to change it by 5.00 cuz it changes at .01/click. I might find the ideal feed rate by the time I've used the first spool. If there is such a setting... Whats watching paint dry boring is that this 175mm diameter sprocket, takes around 12 hours to print + the time to cool if you want it cold & hard when you take it off the bed. So its got to set here and cool for at least a half hour before lifting a corner of the magnetic sign sheet it uses as bed cover. I hope my boring build by build playbacks serve to speed up others in getting good results. If its the right size, (but its probably not) the 180 toother on the bed now should be 100% usable with a gt2_3mm pitch belt. I need to get one for a sizing gage before I can ascertain that. Stay well and safe everybody. 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
