10oz Caulk Tube Cap

There's a few of these I've seen on here, all of them seemed to not fit or grip well. It took a few experiments, but this one seems to work well for me. Its fit snugly, and held, on all the 10oz caulk tubes I've tried it on.

You'll need to rotate it to print, as Fusion 360 leaves things on their side.

Nothing special about printing it. If you don't have good bed adhesion you may need rafts or something, but on my printer, with a PEI surface, it printed without them.