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Photonsters / Resin-exposure-finder-v2

resin exposure finder tool for UV MSLA 3D printers
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Sonic mini 4k #6

Open akku3D opened 3 years ago

akku3D commented 3 years ago

Can you make a file for the sonic mini 4k? Resolution: 3840 x 2160

fnordpig commented 3 years ago

+1

tslater2006 commented 3 years ago

Seems you can use UVTools to rescale the ctb file to the proper resolution.

sn4k3 commented 3 years ago

Seems you can use UVTools to rescale the ctb file to the proper resolution.

True, but slice for the printer is always better, if pixels per X/Y ratios are diferent you will end with a wrong object size. Most of the time they are in 19 to 20 pixels per mm, but if you get the wrong file to deal with, you can end with wrong object size. You can verify this at UVtools calculator - mm to pixels which tell you the X and Y pixels per mm of the printer. Otherwise if both source and target print have same pixels per mm count it's safe to use the resolution tool

tslater2006 commented 3 years ago

I guess in this particular case I don't care about exact sizes being correct, not like a precision part or something. Might still be useful for judging exposure times until an official file is made for this printer.

X3msnake commented 3 years ago

it should not be scaled at all. the test is pixel perfect so 1 pixel should always correspond to a pixel on any machine no matter the pitch size

tslater2006 notifications@github.com escreveu no dia segunda, 4/01/2021 à(s) 18:28:

I guess in this particular case I don't care about exact sizes being correct, not like a precision part or something. Might still be useful for judging exposure times until an official file is made for this printer.

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jbuseman-eng commented 3 years ago

Is the XP2_sonic_mini supposed to be for the Sonic Mini 4k? If so it doesn't work as my printer doesn't read .phz files.

X3msnake commented 3 years ago

no it is for sonic mini 2K

Use uvtools new parametric exposure finder

jbuseman-eng notifications@github.com escreveu no dia quarta, 3/03/2021 à(s) 01:27:

Is the XP2_sonic_mini supposed to be for the Sonic Mini 4k? If so it doesn't work as my printer doesn't read .phz files.

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jbuseman-eng commented 3 years ago

Unfortunately I can't seem to get UVtools running under Fedora 33. I've been trying, but it's constantly complaining about missing libraries. The libraries it is looking for I can't find for my distro. I have libjpeg-turbo and libdc1394, but it still complains about these. ldd libcvextern.so |grep not libdc1394.so.22 => not found libjpeg.so.8 => not found

no it is for sonic mini 2K Use uvtools new parametric exposure finder jbuseman-eng notifications@github.com escreveu no dia quarta, 3/03/2021 à(s) 01:27: … Is the XP2_sonic_mini supposed to be for the Sonic Mini 4k? If so it doesn't work as my printer doesn't read .phz files. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#6 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACUR56SYMBQHBCFEF3VFI7TTBWF7TANCNFSM4R2X274A . -- Com os melhores cumprimentos, Vinicius Silva

sn4k3 commented 3 years ago

UVtools don't have the opencv compilation for fedora, you need to compile the libcvextern.so under your system

X3msnake commented 3 years ago

Might be worth it to install a second distro just for UVTools

No dia quarta-feira, 3 de março de 2021, jbuseman-eng < notifications@github.com> escreveu:

Unfortunately I can't seem to get UVtools running under Fedora 33. I've been trying, but it's constantly complaining about missing libraries. The libraries it is looking for I can't find for my distro. I have libjpeg-turbo and libdc1394, but it still complains about these. ldd libcvextern.so |grep not libdc1394.so.22 => not found libjpeg.so.8 => not found

no it is for sonic mini 2K Use uvtools new parametric exposure finder jbuseman-eng notifications@github.com escreveu no dia quarta, 3/03/2021 à(s) 01:27: … <#m2066680584511497312> Is the XP2_sonic_mini supposed to be for the Sonic Mini 4k? If so it doesn't work as my printer doesn't read .phz files. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#6 (comment) https://github.com/Photonsters/Resin-exposure-finder-v2/issues/6#issuecomment-789353989>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ ACUR56SYMBQHBCFEF3VFI7TTBWF7TANCNFSM4R2X274A . -- Com os melhores cumprimentos, Vinicius Silva

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sn4k3 commented 3 years ago

Or he can download the latest uvtools rhel build and it will work just fine ;)

X3msnake commented 3 years ago

better yet :D

No dia quinta-feira, 4 de março de 2021, Tiago Conceição < notifications@github.com> escreveu:

Or he can download the latest uvtools rhel build and it will work just fine ;)

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jbuseman-eng commented 3 years ago

Or he can download the latest uvtools rhel build and it will work just fine ;)

I did not even not notice the rhel build...Thank you so much. I feel like an idiot for that one...lol

tslater2006 commented 3 years ago

Here is the version I use and it's worked just fine on the Sonic Mini 4k for me. Rescaled via UV tools but putting here for those that just want to grab it and use it.

_xp2_3840x2160_050um_0.5-5s.zip

sn4k3 commented 3 years ago

Here is the version I use and it's worked just fine on the Sonic Mini 4k for me. Rescaled via UV tools but putting here for those that just want to grab it and use it.

_xp2_3840x2160_050um_0.5-5s.zip

Carefull with change resolution, that is only ok to do if both printers have same pixel pitch, if you are changing a 50um file to print on a 35um printer you may have a model a bit smaller than expected, you will need to resize as well to compensate by a factor of 100%+50-35um.

tslater2006 commented 3 years ago

Thanks for the input on scaling, I believe the 050um is layer size, not to do with the pixels themselves. And at least for this specific model the overal printed size accuracy doesn't matter to me. I've calibrated a handful of resins using the ctb file on my sm4k and its worked out fine. Its not a perfect solution, like having it officially supported on this repo, but until then it seems to be good enough and figured I'd share it if others want it.

sn4k3 commented 3 years ago

yes the 50um on file name is layer height, but i was not talking about that. You need to calculate pixel size by: Display Size/Resolution Size, that gives you the pixel pitch. Somehow you are invalidating the test but even with a invaditated test you can find the exposure by comparing tests still i dont recommend doing such without proper rescaling. Maybe the file you pick have the right pixel pitch for your target printer, but do confirm that