I built the remix of Void's 3x3 macropad - the Void9 - which is here (https://www.thingiverse.com/thing:4816077) on thingiverse.  The dimensions for the remix and Void's original are, so far as I can tell, the same so this model should work with either.  

This is a riser for the macropad.  While Void provides an angled base for the macropad, I'd already built mine with the normal, flat, base and glued my rpi2040 board into it.  I wanted to lift the macropad up and angle it so it sits in line with my varmilo keyboard, and his base wasn't quite high enough for my needs anyway.

So this riser lifts the macropad up for those with "printer's regret" who've printed the macropad with the flat base and can't be bothered to rebox the innards.  It's a tight fit and you may have to wiggle the usb cable but it basically sits neatly in the riser without any clips or glue.  The angle is either 15 or 18 degrees, can't quite remember.  Designed on Tinkercad.  Printed in PETG with 10% infill on a MK3S+, took about 3.5 hours.