On Saturday 18 July 2020 19:16:58 Gregg Eshelman via Emc-users wrote: > Temperature settings (in degrees C) are in codes at the start of the g > code files so they're easy to change in any text editor. > Except the printer doesn't have one, so you've still got to dismount the card and take it to a machine that does.
> Most of the strength in a 3D print is in the shell and perimeters > around holes. Infill over 50% is almost always a waste. Adding more > perimeters does more for increasing strength. Putting a ring of holes > around the toothed pulley will use less material and put more of > what's used into perimeters in the 'spokes'. Adding more top and > bottom layers is another way to improve strength. That I've done, but the small driveing pulley I was trying to make as a drop-over to the 16.85mm diameter of the steel tape pulley, leaves no back wall at 24 teeth, and it just explodes when installed. At 24 teeth I expect to see every step in the eyepiece. So I make a mini puller and clean off the 5mm motor shaft and see if I can find a suitable metal pulley. Tomorrow. Or make a harmonic to interpose out of a timing belt. I ought to be able to do a 10/1 in a 1 by 2" diameter package. > What I'd like to see in a slicer is a setting that every N layers it > would fill perimeter space out to within X perimeters from the outside > with a top or bottom layer style fill for two layers.For example every > 6 layers on a print with 5 perimeters lay down two layers - at 90 > degrees to each other, over the inner 3 perimeters and to 2x perimeter > width onto the infill inboard of the 5th perimeter - space permitting. > That would help ensure the surface is well tied to the interior, like > putting tie strips into mortar joints in a block wall. A fairly recent > trick that's filtered down to the free slicers is variable layer > height so it can do 0.3mm thickness for faster building on sections > with vertical or slightly angled surfaces then switch to a thinner > height for a better surface on steeper angles. > > On Saturday, July 18, 2020, 8:11:05 AM MDT, Gene Heskett > <[email protected]> wrote: 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. > _______________________________________________ > Emc-users mailing list > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
