I’m new to resin printing and the Phenom is my first printer of this type (been FDM printing for a number of years now) and I have yet to get successful prints. Out of the 6-7 I’ve done only one of my prints has worked properly, all the rest have had bed adhesion issues. The problem has consistently been parts at the center of the plate failing to adhere; parts around them have printed but the failed parts end up as flat blobs stuck to the FEP film. I’m really frustrated because the parts that have managed to print look excellent.
I’m using Anycubic Basic Grey right now, which seems to be well reviewed in other printers so I don’t think the issue is the resin itself and I’ve used resin from two different bottles now so it’s unlikely I got a bad batch. For settings, on my first print I used the preloaded Deft profile. I then experimented with altering those settings, none of them changing the outcome. I’ve tried Bottom Exposure Times of 50, 75, 100, and 120 seconds. I’ve tried Bottom Lift Speeds of 36, 24, and 12 mm/min. I’ve tried with both the recommended skates as well as a larger raft (~70mm diameter containing multiple parts), with the same results.
The temperature of the room I’ve been printing in has been between 75-85F (24-30C) so I don’t think this is a temperature issue. The resin has been filtered after each failed print so it’s not an issue of floating bits in the resin. And, since the vat has to be refilled every time, the resin is well shaken before printing. The LCD, FEP, and plate are all wiped down with alcohol before printing so I don’t think anything’s dirty.
I’ve also checked the machine for physical defects that might be causing the issue. When I put a steel rule against the plate and the LCD both appear to be flat and not warped so I’m confident that’s not the problem. I have noticed a somewhat glossy patch in the center of the plate where failed prints have been. Should I maybe lightly sand this area in case debris has formed in the textured surface?
I’ve used the following bed leveling techniques:
- As described in the manual where you home the machine, press down on the corners to tighten, and then lower the plate until a sheet of paper is grabby (for my machine this was at -0.3mm) and set to zero.
- As above but then backed up by 0.1mm for the zero.
- Loosened all plate screws and lowered to home with the vat installed, then tightened the screws as it sat and then backed up by 0.1mm for the zero.
I’m using the FEP film that came installed in the vat. Wiping it down with alcohol before/after each print has left it somewhat cloudy looking and, on closer examination, almost melty looking. It’s also looking scratched where failed prints have had to be popped off with the plastic scraper. I assume that this will probably need to be changed but I can’t find the procedure in any of the manuals.
All that said, I would guess this is one of two problems: there is a bad setting in my print profile and I’m not experienced enough to know what it is, or the FEP film is bad and needs to be replaced despite having less than a dozen prints on it. Anybody have any ideas or advice?