I picked up a used BeaverTail Stealth 2000 boat off Craigslist. The custom blind is a $400 option and I figured I could print some bimini type brackets and bend some conduit and come up with something similar.
Brackets should be useful for other project that need to swing EMT 180 degrees.
Sized for 1/2" EMT. I used 5mm 30mm bolts and nuts. Should also work with 1 1/4" 10-24 bolts.
I printed the first parts in ABS with 60% infill. Later, I started printing in Nylon and reduced the infill to 30%. These settings seem to produce parts strong enough for the intended use. The pivot bases might benefit from more material around the pivot holes and captured nuts. I will install this on my boat this weekend and give it a try. If anything breaks, I will tweak the design.
Note: The pivot plug fits fairly loose inside the conduit. You can increase couple percent to get a tighter fit. I plan to drill a hole though the conduit and plug to install with a removable clip.
Things to try: I may also try the vapor finish on the ABS parts to increase strength. Try printing with nylon dyed dark green.