nanoDLP

bridge2nowhere

Member

Registered: 2017-12-07

Posts: 5

Bubbles in first layer

I have an issue with a big bubble on the first layer, and it hangs around for the first 4-5 layers before being covered up.

-It's a simple scratch built top-down printer
-I'm printing on a piece of aluminum, with no holes in it.
-I'm testing with a 0.1mm layer height.

Photo Link because I couldn't figure out how to post it.

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Bubbles in first layer

Lower the speed for early layers.

bridge2nowhere

Member

Registered: 2017-12-07

Posts: 5

Re: Bubbles in first layer

Do you mean increase the cure time?

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Bubbles in first layer

No, lower the speed of printer. If you are using RAMPS, usually you need to change firmware settings. If not you can change speed by editing speed related inputs on profiles.