I got these DC to DC converters from Amazon, and needed a case for it. I wasn't able to find one so I created this.
"AITRIP 2PCS DC 400W 15A Step-up Boost Converter Constant Current Power Supply LED Driver 8.5-50V to 10-60V Voltage Charger Step Up Module for Electric Equipment and Digital Products"
https://www.amazon.com/gp/product/B08TWKK5Z9/
The bottom part of the case can be screwed in with an M210 or so screw. The case can be compression fit, or using M330 with M3 nuts fit into place you can screw the top down. This is helpful if you are going to mount it upside down under your desk like I did.
I printed with ABS and another with PETG. 15% infill and 3mm layer height. Some of the overhangs near the holes are annoying and may need to be cleaned up before you can get a screw to threat properly.
Many of the settings are parameterized, but I was just trying to get used to using it. Most of the settings can be adjusted but some things like the breathing holes are hard coded.