I printed the Halot One Resin Drainer by BrazdaPrints (https://www.printables.com/model/135134-halot-one-resin-drainer) and it has proven to be one of the handiest things I've ever printed, but I always have to look for it when I need it. So I designed this little bracket in FreeCAD and stuck it to the side of the Z gantry on my Halot One so the drainer is always right where I need it.

Yeah, I know I could have just glued a magnet to the side of the drainer, but where's the fun in that?

Printed in Inland Black PLA+ on my Anycubic Mega S and mounted using a 3M Command Strip. (I was going to print it with black resin, but that would have either taken 4 hours or would have required a bunch of supports, so I took the easy way out.) The mount is a little wiggly, so I may look for another way to mount it, but it works okay for now.

I'm including the FreeCAD file for anyone who wants to modify this to fit their needs. It's designed to be parametric - all the dimensions are in the spreadsheet, so if you just need to adjust the size, just change it in the spreadsheet.