3D printed people 20 micron wide! :) Unbelievable. How they do achieved this? http://www.3ders.org/articles/20141115-jonty-hurwitz-3d-printed-nano-sculptures-at-the-same-scale-as-a-human-sperm.html http://www.b9c.com/forum/files/uploads/2014/11/74le9-Jonty-Hurwitz-3d-printed-nano-structure-3.jpg

Great! How about any wear signs on [s]PDMS[/s] coating? :)
How about some random lines on model?

Are you sure that machine haven't skipped the layer? I saw/heard this few times on mine. But it was actually old software and maybe I was wrong shining with torch into the print area to see how it is going.

Fingers crossed :)

P.S. Survived bare metal sweeper? Oh my god! This is TOUGH!

Also could be ordinary bumping - if you seriously (or not) bump your printer while @ work.

I googled this topic and interesting results I found - looks like Ti tested their DLP's with UV and claim that even old models should survive UV at least for 2000 hours. Given 5x decrease in build time that's a lot of prints! Not to say that there is still hope that they improved UV resistance in ne...

I'm looking at picture and thinking - maybe it's reflected light from the base plate makes it bigger and blurred? Try to lower base curing time to 5 seconds and see what will happen. Or try the following hack - glue to the build table some orange glass or acrylic - it should not reflect but absorb U...

Mike is right - what he talks about I also see the most important to test - while small items is likely easier to separate from some other substances, big cross sections (100 or 70 xy base plate) and very tall vertically identical prints are the hardest to PDMS. If this NuVat will work as it should ...

Make sure to try some really tall prints ;)
For example just a straight cylinder 1-4 mm in diameter to the full height of your models (should not add any time to print) - this should be almost deadly to PDMS. Let's see how NuVat feels about it.

I tried PU - no luck here. Resin sticks to it.

AFAIK no - prints, if not left overnight will not be hurt. But still I saw real cracking on FunToDo resins if washed in iso for prolonged time (>5 minutes). Same on MJR if washed in ultrasonic fro long time and cured without water. If cured in water - no cracks.

So you removed UV filter from lamp or from projector itself? Or maybe color wheel? AFAIK in projector there is 3 UV filters! One on the lamp housing, second on the projector near the lamp assembly and third is on the color wheel. So if you removed only on filter and this gave you 0.2 msm I can't ima...

Click reply in the bottom. Then upload image :)

Ok, but I see an immediate solution - what if to place sweeper a one bolt to the left on the rail? In this position it will still mix resin and don't touch a glass/window.

Wanted to ask - how it stands against tall prints? From PDMS point of view tall prints make much more damage to PDMS correspondingly to their height (actually number of slices). Especially ones which repeat in z-axis i.e. vertical pillar 100-200 mm height. How about that? Somebody tested it with suc...

In my practice I succesfully printed holes and channels 200-250 micron wide on v1.1 machine. You should lower cure time slightly and try again.

I'm using ISO directly in the sonic for more than year now. No problems so far.
Then water curing in UV (ordinary two pcs curing box 72W) for 0.5-3 hours (yes hours, I usually leaving it there for long).
And then blow dry - voila, ready. Dry, clean and nice to touch.

Regarding last post about nanocoatings - I'm sure it is not it. It was discussed here a lot, but likely it will not work. At least just because principles here are different. It is repellent to WATER, not resin. Also I tend to think that if even some nanocoating will work as it should, it anyway wil...

Wow. Revolution in VAT coatings here? If there is still "tickets", "invites for this party" or so I'M IN for sure ;)

Ok, stop hiding away, let us know what is it, or where to buy it, or how to grind it from the moondust?

I haven't noticed problems from leaving prints in printer for prolonged periods. And if your print feel tacky just try water curing method. After cleaning with isopropanol immediately put in the glass jar filled with water. And place all that into UV oven. Yes, in water. You'll notice how dry, clean...