I had terrible deformation from using tough resin.
The first and only time I had good fit and dimension stability was when I
- Used white resin from 2018
- cured in IPA for EXACTLY the time in guide (I think it was 10 minutes each tank).
- used weak UV finishing - about 20 minutes of low-angle sun on each of two sides.
With previous resins I had slimy parts, and as noted above for some resins, very distorted parts. The distorted parts were thick solids - the form2 is not very friendly to such types of parts.
I propose you start with the three bullet points above including new white resin, (or if they now have a fancy UV curing system, follow those directions making very sure they are specific to your white resin). Having gotten that to work, I propose you change only one thing at a time (part, IPA finishing, UV curing) until you learn what you need for successful printing. (In our lab, we tried many different resins and finishing and wasted a LOT of time. If we had started from simplest, best known case and incrementally went from there, it would have been much faster.)
The support folks are very kind and good about follow up… but my own experimentation was at least as important.
It’s typically hard to measure any finished part to 0.2 mm that doesn’t have ideal large flat faces, so I have never tried. Certainly our fit was better than 0.5 mm, but I can’t claim it was better than 0.2. Let me know if bullet points above end up with good dimensions or not.
Here’s hoping I was helpful,