Zero light leak case for ZWO filter drawer

After I bought my ZWO filter drawer, the company came with an updated model that is supposed to be anti light leak - meaning that the old model may leak light. So I made this case that adds an extra corner to reduce light leak into the drawer.

Printed in 0.3mm layer. The upper and lower rings are tight on the body of the filter drawer, but do not need glue. The middle piece does need glueing. If you want extra security, you can glue all parts together to the body of the drawer.