Printer: Mars 5 Ultra (Sys Ver: EL3D-4.0, F/W Ver: V1.4.3-LCDC/8520*4320/V42.25 [latest])
Slicer: Lychee Slicer (7.6.400)
Resin: Siraya Tech Blu Lava (Lava Grey) (expires in 2027, shaken for 5 mins before pouring)
Test Model: Siraya Tech Test Model
Environment: Garage @ 30°C (localized heater inside printer)
File was sent wirelessly from slicer to printer
Problem:
I'm trying to calibrate my resin, but struggling to find others who have had and solved this issue. My print using the Siraya Tech recommended settings for my resin/printer printed just fine at 50 um ("50 um Default"). I copied the settings and adjusted Wait/Exposure times for 20 um ("20 um test"), but the print is strangely different.
The base of the "20 um test" is much thicker, and it's almost like the printer "skipped" layers in the middle of the print? My best guess is that it has something to do with the amount of cross sectional features? Looking at the magnified "dome" feature with the cutout, you can see that there's some skipped layers that might line up with the height of the raised, very outer edge of the model.
Any ideas what could be going wrong between 50 um and 20 um printing? Is there a term for this specific issue?
My thoughts were to play around with lift height/speed, ensure the z axis is appropriately greased, pouring and filtering any solids from resin, and trying another slicer program or method of transfer.
Also, if you're unfamiliar with this resin, it's more viscous than typical, so that might lend to the issue. Feel free to assume that I'm very amateur and don't know what I'm doing! I appreciate the help!
BONUS QUESTION!
I printed that same "20um test" with 4 models to run the resin calibration of the Mars 5 Ultra with the following exposure times: Q1: 2.5s, Q2: 2.3s, Q3: 2.1s, Q4: 1.9
Q1 stuck to the bottom of the vat
Q2 had the "best" quality but peeled up at the edge opposite the cube (not pictured but looks like there were bubbles, similar to bottom pictured)
Q3 and Q4 had separation between layers
My question is in regards to the fact that all quadrants printed diagonally up to a certain point (up until only the cube was printing?). Any idea why this happened? The "20 um test" talked about above did not exhibit this behavior, even though the Q2 resin calibration print (pictured with diagonal supports) SHOULD have the same 2.3s Exposure Time setting.