# Print fail with grey v4 resin

**URL:** <https://forum.formlabs.com/t/print-fail-with-grey-v4-resin/23182>\
**Category:** Form 2\
**Created:** [April 26, 2019, 7:37am UTC](https://forum.formlabs.com/t/print-fail-with-grey-v4-resin/23182 "2019-04-26T07:37:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![MartineL](https://avatars.discourse-cdn.com/v4/letter/m/4491bb/32.png) [@MartineL](https://forum.formlabs.com/u/MartineL)\
**Post date:** [April 26, 2019, 7:37am UTC](https://forum.formlabs.com/t/print-fail-with-grey-v4-resin/23182/1 "2019-04-26T07:37:48Z")

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Hi,  
I just got a used Form 2 that I am experiencing problems with.  
I am printing in grey v4 for resin and I just bought a new resin bed, but for some reason my prints keep failing…  
Sometimes it only prints supports structure and others partly the items…

I have printed these file on other form2 printers with o problems so it is not the files, anyone has an idea what could be the issue?

Thank’s guys

 ![58610123_10158320191960278_2339620788103020544_n](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/2X/e/ef6920564c8cfb55fa4e1272ea0c4ba13468c714.jpg)

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**Author:** ![mrwakefield](https://avatars.discourse-cdn.com/v4/letter/m/e68b1a/32.png) [@mrwakefield](https://forum.formlabs.com/u/mrwakefield)\
**Post date:** [April 26, 2019, 10:22am UTC](https://forum.formlabs.com/t/print-fail-with-grey-v4-resin/23182/2 "2019-04-26T10:22:43Z")

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That looks very much like dirty optics to me. I’d raise a support ticket with Formlabs and they will probably send you a cleaning kit and some instructions. I had similar problems recently and the support from Formlabs was excellent.

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<div class="post-metadata">

**Author:** ![MartineL](https://avatars.discourse-cdn.com/v4/letter/m/4491bb/32.png) [@MartineL](https://forum.formlabs.com/u/MartineL)\
**Post date:** [April 26, 2019, 10:42am UTC](https://forum.formlabs.com/t/print-fail-with-grey-v4-resin/23182/3 "2019-04-26T10:42:35Z")

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Great thank you, i just realized after that the optic window was suuper dusty…

I cleaned i with non particle alcohol wipe i hope that can be okay. :s

Thanks you

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**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\
**Post date:** [May 3, 2019, 10:42am UTC](https://forum.formlabs.com/t/print-fail-with-grey-v4-resin/23182/4 "2019-05-03T10:42:37Z")

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