On Sunday 02 August 2020 19:48:25 Chris Albertson wrote: > When Amazon starts their drone delivery I think I will even order > stuff I have no use for (Children's shoes?) just so I can watch the > drone fly in and drop the box. > > Which glue matters. I bought a few different brands at the dollar > store and found "Avon" brand is the best of the brands they cary and > the off-brands don't work. Printers are very picky and my printer > might like a brand of glue yours don't. I have yet to try water > soluble hair spray on glass. I 100% recommend Amazon Prime. Where I > live it is mostly free next day delivery. > > On Sun, Aug 2, 2020 at 2:46 PM Bruce Layne > <linux...@thinkingdevices.com> > > wrote: > > Gene: Send me your USPS address and I'll mail you a free glue stick > > that's 99.44% coronavirus free. :-) > > > > Or buy a glue stick on Amazon. > > > > > > https://www.amazon.com/Elmers-Strength-Washable-1-4-Ounces-E590/dp/B > >008M56Z0O > > > > Coronavirus not withstanding, it's seldom worth me making a 15 > > minute trip to buy something like this when I can buy it online in a > > minute and it's at my door a day or two later. Can't wait for > > Amazon Prime drone delivery in 20 minutes.
TANSTAAFL. > > Use a nylon bristle brush to distribute the tiny bit of glue stick > > and water on the glass plate, immediately before printing. I think > > the scrubbing of fresh glue and water results in a high surface > > energy that's needed for a good bond. I just stopped it before it was done with the first layer, set the extruder up 3 whole numbers, slid the putty knife under what was there and raised the glass about 1/6 turn of the wheels, and it is still laying individual strings on the first layer that I can see between. So I've raised it about 1/12 of a turn more, but its up to .36mm before it looks solid. Before I start the last cap, I'll turn the extruder up 2 more whole points to see if it lays a wide enough strip to touch its neighbors. I think the glass, despite being at 73C as a starting temp, is still too cold to let the hot plastic squeeze out to touch its neighbors. I didn't re-arrange the glue but its sticking well anyway, strand by strand is laying exactly where its laid. And easier to remove. Progress. I think. > > The white glue experiments I tried resulted in something analogous > > to a slick non-stick surface. I was surprised by that. It may have > > been the result of the 110C bed temperature I was using for ABS. I > > didn't try it with PLA or TPU. It failed with ABS and that's all I > > needed to know. The glue stick and water works very well for ABS, > > PLA and TPU. > > > > I hope you enjoy glass & glue stick 3D printing as much as I do. > > The trick is to get good adhesion to a hot bed and good release from > > a cold bed so there are no failed prints and no need to hack and pry > > the part off the build plate that results in a loss of bed level > > that causes subsequent prints to fail and possible damage to the > > printer... or at least damage and degradation to a plastic build > > surface. 3D printing requires some patience because it's slow, but > > it shouldn't require much labor and the process should be repeatable > > and reliable. That's definitely an attainable goal, because I'm > > doing it. > > > > Others have already done a lot of 3D printing process development. > > It's inefficient and frustrating to ignore the work of others and > > repeat the painstaking development yourself. At this point, most > > people buy a cheap 3D printer from a known good source (Sainsmart > > should have been good to go), watch a few YouTube videos, and have > > reasonable success out of the starting gate. It's been painful for > > me to see you struggling with this. > > > > On 8/2/20 4:28 PM, Gene Heskett wrote: > > > On Sunday 02 August 2020 15:12:39 Bruce Layne wrote: > > >> On 8/2/20 2:43 PM, Gene Heskett wrote: > > >>> One the right in particular, there is no room for anything. > > >>> About 1mm clearance between the plate and the upright carrying > > >>> the PSU too. > > >> > > >> It's usually possible to pinch the wire handle on a bulldog clip > > >> and lift the compressed handle out of the spring steel clip once > > >> it's installed for a minimal clearance clip, although the curved > > >> back on the spring steel will probably protrude more than 1mm. > > >> > > >>> But now its slightly > > >>> cloudy with dried white school glue & lots of water mixed, so > > >>> we'll see how the adhesion works. > > >> > > >> Based on my experience, the adhesion will be terrible. I tested > > >> white Elmer's Glue-All and white Elmer's washable school glue and > > >> both provided terrible ABS adhesion on glass. The only glue > > >> that's worked well for me is glue stick. As I've repeatedly > > >> mentioned in this ongoing 3D printing discussion, I use Elmer's > > >> X-Treme glue stick. The thinnest possible application directly > > >> to glass (applied with a pound or more of normal force to a cold > > >> glass plate, with a slow steady motion) works well, but even > > >> better is a small smudge of glue on the glass plate with a few > > >> grams of water, evenly distributed across the glass plate to form > > >> a nearly invisible glue film when dried. > > > > > > I have not "been to town" with a mask to get any of that. This was > > > a small bottle of craft glue a good 15 yo I add an inch of water > > > to and shook like a rattle gun paint can to get a wee bit of glue > > > dissolved into the water. Mowing the grass, otherwise staying > > > safe and out of sight here at the house. The Elmers is probably at > > > CVS. This looks like heck but its sticking well after about 3 > > > turns of the brim laydown. The initial clear the nozzle by > > > running up and back on the left edge of the plate also stuck to > > > clean glass, very close to as well as it stuck to the magnetic > > > sign mat it came with. From that, I think clean glass is all it > > > needs. OOTB and plastic wrap, it acted like it was waxed & water > > > just pooled on it. Like a freshly waxed car. This part is only > > > about 4 hours, its other mating half is about 8 or 9 cuz its > > > taller and I need 3 of each yet. > > > > > > Thanks Bruce. 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
