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Sonic mini 4k #6

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akku3D opened this issue Sep 26, 2020 · 17 comments
Open

Sonic mini 4k #6

akku3D opened this issue Sep 26, 2020 · 17 comments

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@akku3D
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akku3D commented Sep 26, 2020 •
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Can you make a file for the sonic mini 4k?
Resolution: 3840 x 2160
@fnordpig
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+1

@tslater2006
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Seems you can use UVTools to rescale the ctb file to the proper resolution.

@sn4k3
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sn4k3 commented Jan 4, 2021 •
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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
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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
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X3msnake commented Jan 5, 2021 via email

@jbuseman-eng
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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
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X3msnake commented Mar 3, 2021 via email

@jbuseman-eng
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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 [email protected] 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
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sn4k3 commented Mar 4, 2021

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

@X3msnake
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X3msnake commented Mar 4, 2021 via email

@sn4k3
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sn4k3 commented Mar 4, 2021

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

@X3msnake
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X3msnake commented Mar 4, 2021 via email

@jbuseman-eng
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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
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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
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sn4k3 commented Mar 4, 2021 •
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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
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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
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sn4k3 commented Mar 4, 2021

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

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6 participants
@sn4k3 @fnordpig @tslater2006 @X3msnake @akku3D @jbuseman-eng