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Did you put your printer in test mode?

I did not put it into any kind of testmode. Have i misread it? I didnt even know there was one on the Photon S

Sascha Berlin okay so the way this file is suppost to work is there is a mode that changes the exposure time for each section of the file in 2 second increments. So section one will have 2 seconds of exposure while section 2 will have 4 and so on. This way you can see which is the best time of exposure

yeah, that was my assumption, but it still looks very off since no area is somewhat decent. I was wondering if i did something horribly wrong when setting it up

Sascha Berlin i got my source files elsewhere so ill test this one for ya really quick and see what i can find out

Sascha Berlin Well, I am unable to print this particular file as I have the OG photon and can't print .pws files, So I will link to the test I used and maybe that might help you out.

https://github.com/altLab/photon-resin-calibration

If unfamiliar with github, there is a green box that says clone or download in the middle right of the screen.

Dustin Cole i sadly can not use said file for the newer photon, thats why i resorted to this one. I didnt really find much else in the way rerf testing for the photon s. But thanks for trying!

Sascha Berlin does your photon only print using .pws files?

no, but i heard that both photons use incompatible rerf variants

Sascha Berlin I may be wrong but the photon S does have a stronger light so essentially it just prints faster due to being able to cure fully at a lower exposure time. So for my photon it may take 8-10 seconds for the elegoo grey to cure, where your will take 5-6 seconds. The Rerf should still be able to show you where your resin sweet spot is regardless of machine.

Does this test work on the newer Fauxtons? I watched the youtube videos and didn't see the .gcode files on my thumbdrive when I went to check.

Christopher Barton thats at elsat what i hoped. I mean the areas on each test are different in my case, just not stellar quality. Maybe its the resin not being able to at that resolution.

Why would you say you're not getting good results? #3 - #4 on first picture look entirely decent. It's almost hitting the limits of the printer.

Go with 6 seconds

on which one? first, second or third picture?

i compared them to the original file, not knowing what to expect

The right column is all out of 50 micron range that the photon could *theoretically* achieve. Since this is an lcd sla there is always going to be some light scattering so even a 50 micron pixel will cure to more than 50 microns. The resolution you're getting here between #2 - #4 is about 150 microns, which is pretty much perfect for this kind of a printer. If you need better you'd have to look at $3000+ laser slas.

Sascha Berlin The first one. #2 give you best negative (lowered) detail but is lacking a bit of positive (raised) detail. I'd go with #3 (7s) or go a bit more heavy with supports with 6s. I'm assuming the first one is at 50 micron layers? Try to do another test with lower exposure for shallower layers as they need less time to cure.

Mi Ha first one is 50, yeah. I'll just try with that! What would the advantage of going below 50 be then? (looking at your other comment as well) I have been printing at 40 most of the time but some detail looked a bit off (overexposure i guess, printed at 9/10 secs)

i would print with those settings now using x4 AA, does that make sense?

Sascha Berlin You can linearly extrapolate for shallower layers and get pretty close. If 6s is good at 50 microns, then 4s will (most likely) work for 30 micron and 3s will be ok for 20 microns.

Those settings look good to me. AA is up to you, 4x is plenty.

Ah sorry, missed the question about the advantages. Smaller layers will give you better resolution in the Z axis (straight up), but the bigger advantage (for me at least) is that you can get a lot closer to horizontal with the plate and not have any bridging issues. You can see here: https://github.com/....../temp/slice_angles-van_kesteren.jpg how the layer height impacts critical angle (the angle where you'd need to add supports)

Mi Ha thanks for all the nice intel :) i will try it out! have a good night

Usually it happens when I’m placing a support on a model that isn’t the currently selected model. The combined process of selecting another model and then adding the support will sometimes crash it. So I always go to the object mode and then select the next model prior to adding a support to it. Also usually only on models that have no supports on them yet, that’s been my experience

yeah thats it. Never payed attention to that. Thanks!

Sascha Berlin No problem!