Built this bracket to tidy my 3/4 in conduit pipe that ran on top of my drywall on the inside of my garage. It was designed with a bit of extra room as I also have, behind the conduit hose, a pair of cctv ethernet wires - the intent there was to also clamp down the cctv wires. I have also added some support to both sides of the bend to prevent the bracket from breaking. I was extremely happy with the end result as the tolerance was spot on for my use case. Hope this is also useful to someone out there.
30% (you may want more depending on your strength requirement)