Stackable Box Corners

I like making wooden boxes and road cases for things. Unfortunately it's difficult to find metal or plastic corner protectors for them, so I designed one! And then I decided it would be cool if they would stay on top of each other if you stacked the boxes, so I did that too.

All of these have 4mm diameter screw holes.
Also I made them in Sketchup, so they might be a little janky. Let me know if you have problems importing them into your slicer and I'll see what I can do.

If you want boxes that stack:
Use Box Corner 2 on the bottom and Box Corner 3 on the top.

If you want the one that doesn't stack:
Use Box Corner 1 on the top and Box Corner 2 on the bottom (this will help keep the screws on the bottom from scratching things you set it on top of.)

I'll be honest, I haven't printed these, but I'd recommend a fairly high infill unless your box and the stuff inside it are pretty light.

I think that's everything. Have fun and post a make if you use this, cause I love seeing people's custom road cases.