Made this to mount copper pipe to my wall with about 5/16 space behind it. I needed to mount a compressed air dryer to the wall and it requires airflow for cooling. This will work with 1/2" copper pipe (.625" actual diameter) and #8 (or similar) screws.

My printer setup and upgrades can be seen here:
https://cockrum.net/

Prusa

I3 MK3S

No

No

.3

80%