Beer cap holder lightweight

First of all, I want to express my gratitude to the author of the original model for its creation and publication of the source code.
What is the actual meaning of my revision. It's all about relief.
A little data:
the weight of the original model is 115g
the weight of the lightweight model with a backdrop of 4 mm is 101 g
the weight of the lightweight model with a backdrop of 3 mm is 93 g
(when printing with 20% filling)
The original holder has a 5mm backdrop.

The photo shows a variant of 4 mm and it is strong enough, I can safely recommend printing a model of 3 mm.
In the files you can find a small fragment of the panel to check the fixation of the lid and when printing two such probes, you can check the docking of the ellemento, which is important. I'll tell you more about this later.

I also slightly increased the mounting holes from 3mm to 4.5 mm for more convenient mounting of the panel
(very small screws are placed in the original holes with which it is not very co