I made a drip arm to fit the Saturn S, Saturn 2, Saturn 12K, and Saturn 3 resin printers. Since I have friends who have all of them, I made it to fit any of them instead of just the 3 for my use. 

It holds the build plate at a 45-degree angle to help resin run off the plate. I printed mine with an FDM printer, but it could be printed in resin. 

I looked at a ton of these for different printers, and they all had pretty sharp edges. hopefully, the rounded ones still work the same, lol.

This also should sit high enough not to end up in the vat, so you should NEED to remove it before printing, even though I do.