# Prints badly **URL:** \ **Category:** Form 2\ **Created:** [November 25, 2019, 8:29pm UTC](https://forum.formlabs.com/t/prints-badly/25521 "2019-11-25T20:29:32Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![FedorDering](https://avatars.discourse-cdn.com/v4/letter/f/858c86/32.png) [@FedorDering](https://forum.formlabs.com/u/FedorDering)\ **Post date:** [November 26, 2019, 6:10am UTC](https://forum.formlabs.com/t/prints-badly/25521/3 "2019-11-26T06:10:54Z")
It looks similar to our results of the optical test. > [@Wavy surfaces and clogged bores](http://forum.formlabs.com/t/wavy-surfaces-and-clogged-bores/25262): > > After few months without much problems with the Form2 some print failures started to appear and become even bigger over the last week. The surface was normal in some areas, while in other areas it become very wavy. and some holes got clogged while other (same print) were clean . After a week of trying to solve the problem ( using fresh resin and a new LT tank) it even got worse The prints are hollow with a thick wall and enough supports inside (automat… please look into topic part 2 > [@Wavy surfaces and clogged bores / part 2](http://forum.formlabs.com/t/wavy-surfaces-and-clogged-bores-part-2/25510): > > Based on the closed topic [http://forum.formlabs.com/t/wavy-surfaces-and-clogged-bores/25262](http://forum.formlabs.com/t/wavy-surfaces-and-clogged-bores/25262) I want to inform you about the solution. In coordination and permission with the formlabs support we performed the cleaning of the inner mirrors (including galvo mirror). We received the instruction for that from the support and followed it strictly step for step. After it we printed the optic test that showed much better results than before the cleaning (see pictures below). [S%C3%A4ulen\_Frontal] [… --- _[View the full topic](https://forum.formlabs.com/t/prints-badly/25521)._