u/madahitorinoyuzanemu

new user here, owned the printer for a while but only decided to use it now. done the test rook piece included in the usb, but came out welded to the plate... literally shattered to pieces to remove it. so i decided to try things manually, and went for the simplest validation matrix listed in the title. I installed Lychee, picked my printer model, stock settings, printed 1 matrix in the middle of the plate, came out pretty good (I think) it looks clear and visible. just brittle because over cured in the station but thats on me.

I decided to print 6 of them spread throughout the entire plate, to check for uniformity, and it didn't work out as planned. the 3 on the top row come out a sludge, like thinner, way thinner with 0 detail on it, while the bottom 3 came out looking good, however all 6 of them where welded on the plate once again, same exact settings as before. The only difference is that i let them sit on the plate longer than the single test piece (same with the rook!)

so questions are, if you do not remove the printouts relative quickly after they're done, will they weld in place? as for the 6x printout, why did the top row fail and not the bottom one? saturn 4 ultra has auto leveling plate, and plenty of resin in the vat. Also the fact that the top row overlaps with the center area (which came out well in the first print) suggest me it's not about leveling? Later I will try another single print just try figure out whats going on.

any ideas? (film and resin are new)

i got an E1 UV printer, still learning the process, but my prints are scratching off way too easily. Here's what I tried and tested so far.

Tried different materials, and the only ones that are good are mostly the porous surfaces like wood, carton sheets etc. anything else like plastics, or smooth surfaces is not working properly.

The printout are coming out fairly 'tacky' kind of sticky, but not by a lot. I'm not sure if end result should look gloss/shiny, but since they feel tacky i'm afraid the curing lamp is not doing its job? In the PC studio app i've also tried different material surfaces type (maybe it various the intensity of the lamp?) like plastic for plastic and so on.

I did some online searches and some had same issues but many said it shouldnt come off that easy, while others said to prep the item by cleaning it, sanding it lightly or applying primer. I tried both cleaning and sanding and still didnt work. Havent tried priming yet as I don't own one, though it would be kind of a bummer to prime most item beforehand.

The sanding one i've also tried going to the extreme just to see if it does any good and sand it with 80 grit (literally scratched the entire surface) and while it did help, it's still came off relatively easy with a minor nail flick

do you think its a printer issue?

*edit* - i've tried curing it in UV light curing machine (for 3d resin printers) ranging from 1-5min and no improvement showed up. Also i'm printing mostly in 1 pass cmyk but i've tried with white underbase too and nothing changed. Inks are not expired before next year. not sure whats wrong. The last thing i can try is to let them sit for few days and see if anything changes under normal lighting but that doesnt sound ideal