ATX-Power-Supply for STEM Version 2

### ATX-Power-Supply for STEM Version 2 ###

This is the second version of my power supply, i used for a lot of experiments with my students. For the first version see https://www.thingiverse.com/thing:3876829

In particular, the main body was built a little more stable. This only slightly increases the printing time. I am now also using the 3.3 volts that an ATX power supply offers me anyway, so that I can offer even more options during experiments.

A USB interface was also added.

I also added a few front panels that everyone can design according to their ideas.

The front panel with the 10 USB ports I didn't implement myself, but maybe someone has use for it.

I optimized the back a little bit in the dimensions.

I added a photo of the wiring. The step-down converter I packed in shrink tubing to avoid electrical contacts.

Important: I do not guarantee the correctness of the circuits (see pdf!). Anyone working with electrical equipment should know what he is doing