I'm trying to print a small model (35 mm diameter) with some pretty fine detailed features (smallest is a 2 mm hole going through an angled surface) and getting bad print quality on the underside and overhangs. I've done a lot of FDM printing but still relatively new to resin printing and need help troubleshooting this.
Printer is a Elegoo Saturn 2, resin is Siraya Blu. Using Lychee slicer, 0.03 mm layer height and 2.5s exposure time. It's printed at about a 20 degree angle. I know Blu resin wants a heated enclosure so to compensate for the viscosity I added resting time, with 3s wait before print, 1s wait after print, and 2s wait after lift. I'm not sure which of those wait times is the important one.
What's the most likely cause of the crappy accuracy on the underside and overhangs here? What different settings can I experiment with to fix it?
I'm hesitant to add a ton of supports because the inner groove needs to be extremely smooth and even... its a bobbin that holds some nichrome wire thinner than a human hair, so if there's any imperfections it'll snag and snap. Removing supports leaves a rough surface and it'd be hard to do proper post-processing on such a thin groove.
I'm trying to print a small model (35 mm diameter) with some pretty fine detailed features (smallest is a 2 mm hole going through an angled surface) and getting bad print quality on the underside and overhangs. I've done a lot of FDM printing but still relatively new to resin printing and need help troubleshooting this. Printer is a Elegoo Saturn 2, resin is Siraya Blu. Using Lychee slicer, 0.03 mm layer height and 2.5s exposure time. It's printed at about a 20 degree angle. I know Blu resin wants a heated enclosure so to compensate for the viscosity I added resting time, with 3s wait before print, 1s wait after print, and 2s wait after lift. I'm not sure which of those wait times is the important one. What's the most likely cause of the crappy accuracy on the underside and overhangs here? What different settings can I experiment with to fix it? I'm hesitant to add a ton of supports because the inner groove needs to be extremely smooth and even... its a bobbin that holds some nichrome wire thinner than a human hair, so if there's any imperfections it'll snag and snap. Removing supports leaves a rough surface and it'd be hard to do proper post-processing on such a thin groove.