4LR44 / 4SR44 to V28PX Battery Adapter (Pentax 67)

I wanted to resurrect my Pentax 67 that I bought on a trip to Japan but it's battery was depleted after a few years. Trying to order an original V28PX battery turned out to be quite difficult so I tried a few adapters on the internet but somehow they either had overhangs that led to stringing or thin walls that broke upon the removal of added supports. Long story short, I used my digital caliper and FreeCAD to design an easy to print adapter to use in my camera. It prints in one go without supports. The only thing you need to add afterwards is a screw to bridge the height gap of 4 x SR44 / LR44 cells to the full height of a single V28PX / 4SR44 / 4LR44 battery. The height difference is 3,6mm so I used a random HDD screw I had lying around. According to my measurements it should be a m3x4 screw with a flat, 1mm thick head (overall length 5mm, head 1mm, outer thread diameter ~3mm). That way it protrudes 0,4 mm out of the bottom of the housing and I achieved continuity between the cells. For best results I recommend SR44 cells as these have the correct chemistry (silver oxide / 6,2V) and a flat voltage curve. LR44 cells on the other hand work but are alkaline cells (6V total) and have a steeper voltage curve, so shutter speed might drift alongside their curve more. I use LR44 cells for now, because the local drug store only had 3 SR44s today and I wanted to get out shooting. What can you do... Anyways I hope this adapter helps you. Cheers!