Flipholder for coins (Hartberger flips and more)

I design many different coin holders and displays, and these are one of my recent designs. Simple yet very effective at storing Hartberger (50x50mm) flips in a steady and solid state.

V1 as you see in the picture, is a bit tight, so some flips which aren't perfectly glued together symmetrically, would struggle to fit into it. So in V2 I widened the gap by .50mm, from 50.50mm, so you have 1mm tolerance to now fit the flips.

EDIT: If you are having problems with warping and printing corners