The *only* successful 3d printed cannons I've seen here on the East coast have been @bkoehler and @Kotori87 . I'm going to play around with the design a bit and make a few test runs to see if I cant change the anti-printed stigma. However, it'll take a lot of trial before I'd trust it on a competitive boat in a NATs-like environment.
If you want some to test, let me know the specs and I will send files to you. I am always looking for more feedback I got good stuff so far from others that led to some minor design tweaks to make them work better
My current printer is set up for printing large things fast. Calibrated for .8 nozzle. Not ideal for the precision a 3dp cannon would need. When I get a second up and running (either a new one, or my old Wanhao) with a normal size nozzle I may take you up on that offer.
Honestly, you may do just fine. I run the points .2 mm layer height, if you can do that, they may print ok
