This is a meter I made off of (and to hold) the Paul Daniels USB-C current/volt meter.

It includes a stand that angles the meter to 45 degrees.

It's a tight fit into the stand (which I prefer) but if people ask for it, I can increase the offset or you can just increase the scale. 

To fit it into the stand as it is, I suggest placing the bottom in first then apply pressure to the top of the case with your palm and it will snap in… update.. I updated/changed the stand to have a -0.4mm offset which still keeps it a tight fit but is much more user friendly.

This is (in my opinion) one of the best current/voltage meters so I wanted a case for everyone to be able to print.

I printed everything in PLA with a 0.4mm nozzle, 0.2mm layer height. I recommend printing in the orientation provided.  No supports needed

edit: While I made this case based off of the usb current/volt meter itself,  I do recognize that it similar to one that is previously designed (that I visually inspected for reference) but had no available files for printing (or editing). I did not know who the designer was until they contacted me about it.  So I would like to attribute @optoio for their original design.