Tiny holes (bubbles?) at surface of prints

[Ashwini]

Reducing the wiper speed does make sense. I also had small pinholes on my prints, but unlike yours, mine were only circular and appeared no matter where I printed on the build plate. That’s when I noticed that during printing, the wiper action was creating a lot of bubbles and the build plate would lower without breaking all the bubbles or allowing time for the bubbles to break naturally (it would take a lot of time and ruin prints). Reducing the wiper speed has made a big difference in my case

Found a couple more articles for your reference:

Holes in the surface of the print

Exactly right! Just in case, I want to share our video for cleaning the release texture on the Form 4 here. This is the surface of the LPU that the tank rests on, and so if it has any dust or debris on it, it can cause issues like this. I hope it helps! Check it out here: [Cleaning the Release Texture | Form 4] Please consider subscribing to the Formlabs Support Youtube channel so you can see our weekly uploads!

Tiny holes in prints

I just received my Form 4 and I ran my first print yesterday and there are a couple of things that I want to discuss about this printer, but the first thing I would like to know is why am I getting pin holes in my prints? I used to have those in my Form 3 but usually it was because the vat was a bit old or maybe that the fact it’s a 4 years old printer. But on a brand spanking new printer I don’t find it acceptable. So any ideas would help. It’s not the end of the world I know, it’s an easy fix…

Hope you are able to solve this problem.