I was attempting to print a small, long part flat on the Form 2 and it printed successfully, however, I noticed the bottom of the part had what looked like a partially cured, flakey layer on it. I attempted to peel some of this off but only parts of it were removable and now after curing, the bottom layer looks quite bad.
I was printing flat on purpose in order to keep the surface finish of the top as smooth as possible (this is for a fluidics application, and I can’t show the entire part).
I also printed this part at an angle with the same support settings and it came out fine (except obviously the surface finish of the top face had layer lines).
I’m just wondering if anyone has knowledge as to what may be causing this. Not enough supports? Support touch points too small? Should I print at a larger layer thickness (this is at 50 microns)? Other issues? Attaching pictures of what I can to hopefully give some idea of the problem. It might be hard to visualize the problem on the picture after it was cured, but the edges are squiggly and those areas had flakey cured bits along it.
Note that I printed this at a support density of 1.25, 0.4mm touch point size, 3mm height above raft, Tough V5, Preform 2.19.1, 50 micron layer heights.