Getting 1/8 inch horizontal lines when printing

Hello,
I am getting 1/16 to 1/8 inch horizontal lines when printing on my Phenom. using Tenacious.

I thought I had this problem solved it by installing a heater,. temp is at 88 degrees in the chamber.

It was printing fine as you can see on the smooth prints. but the latest print the geometric face has horizontal lines all up and down it.

Should I be cleaning out the vat an airing out the FEP film each time. That is one variable.
Printing at 2mm wall thickness and 15% fill.
Thank you for your help.

Jerry

Hi @jerryberta,
we will contact our engineer to help you on this case
@peopoly_support3

The wall thickness of the model is better than 2.5mm. In addition, if the printed model is sealed, a drainage hole should be added to reduce the pulling force. Avoid holes when the model is printed.

Hi, did you find a solution to your problem?