I made this 2 years ago.
A long 2x12 bumped into mine, broke on the corner a little bit, still works fine.
It does its job.
I screwed it in with some 3/8" soffit screws.
Then I took my dremel and cut the tips off the screws inside the crate.
Enjoy!
PO_Crate_Sanding_sponge_holder.stl | 157.2KB |