06-18-2020, 11:26 AM
(This post was last modified: 06-18-2020, 11:50 AM by czyzczyz.
Edit Reason: removed inadvertent text formatting. removed redundant repeat of subject in body.
)
Success!
The gcode that didn't save settings to eeprom, followed by the .ctb test file produced this two layer print out of the stl. i had to clean it using paper towels soaked in IPA directly on the print plate, as my IPA-filled pickle jar isn't large enough to fit the plate itself, but that seemed to work fine. I then cured the print for 15 minutes in front of a UV light and tried to remove it from the plate. It was well-adhered, fragile, and brittle, and broke into pieces. So I printed another test, cleaned it, and removed it from the plate before curing, which worked fine.
Now I just need to figure out how to read the results, to my eye #6-#10 look very similar, with maybe #10 looking the best. This makes me think I'll need to try another test with longer exposures.
Here's a series of images of the test print –these results are for Anycubic "Skin" resin, printed on the Elegoo Mars Pro. Scanning the test print produced a useless peach-colored mostly-solid rounded-rectangle image. Photographing it is a little difficult, so I tried photos aiming to look at the result using transmissive, diffuse, and reflected light.
Following the directions for the card gives me an answer:
The first well-formed circle column is #6, the bottom-most circle on that column that shows any negative space clogs up in column #7, so #6 is the winner.
The test file I used was "resin-test-50u.B100.2-20.ctb", which means it was a 50 micron test, base layer exposure 100 seconds, and the exposure of the 10 columns ran from 2-20 seconds from left to right. so column #6 is a 12-second exposure.
So I'll be adjusting my next prints using this resin at that z-layer height to do 12-second exposures per layer. When I last printed the Amerilabs Town calibration object, I'd used a layer height of 0.04mm and an exposure time of 7s. So it will be interesting to compare a print with the new settings to the old print.
The gcode that didn't save settings to eeprom, followed by the .ctb test file produced this two layer print out of the stl. i had to clean it using paper towels soaked in IPA directly on the print plate, as my IPA-filled pickle jar isn't large enough to fit the plate itself, but that seemed to work fine. I then cured the print for 15 minutes in front of a UV light and tried to remove it from the plate. It was well-adhered, fragile, and brittle, and broke into pieces. So I printed another test, cleaned it, and removed it from the plate before curing, which worked fine.
Now I just need to figure out how to read the results, to my eye #6-#10 look very similar, with maybe #10 looking the best. This makes me think I'll need to try another test with longer exposures.
Here's a series of images of the test print –these results are for Anycubic "Skin" resin, printed on the Elegoo Mars Pro. Scanning the test print produced a useless peach-colored mostly-solid rounded-rectangle image. Photographing it is a little difficult, so I tried photos aiming to look at the result using transmissive, diffuse, and reflected light.
Following the directions for the card gives me an answer:
Quote:QUICK READ OF A CARD
- Start from top and locate first well formed circle column
- Move to bottom last visible Circle
- Move right untill the circle starts to clog
- Backtrack one colum
- That's your sweetspot
The first well-formed circle column is #6, the bottom-most circle on that column that shows any negative space clogs up in column #7, so #6 is the winner.
The test file I used was "resin-test-50u.B100.2-20.ctb", which means it was a 50 micron test, base layer exposure 100 seconds, and the exposure of the 10 columns ran from 2-20 seconds from left to right. so column #6 is a 12-second exposure.
So I'll be adjusting my next prints using this resin at that z-layer height to do 12-second exposures per layer. When I last printed the Amerilabs Town calibration object, I'd used a layer height of 0.04mm and an exposure time of 7s. So it will be interesting to compare a print with the new settings to the old print.