Multicopter motor mount for 1/2" square booms

This is a simple, but robust motor mount for any copter that uses 1/2" square booms. I printed in ABS because I tend to run my motors fairly hot - but I've never actually notice the mounts getting warm so PLA might do the trick - let me know if you try it!

I found these sometimes looked a bit messy after printing because the first layer of the bridge was never perfect - so I added a small tab that should be easy to remove after printing which just gives a bit if support to the bit that's most