This is a break-out thread from my Surcouf thread, located here: https://rcwarshipcombat.com/threads/french-submarine-surcouf.447110/ --- I decided to walk away from the BC cannons I bought for several reasons (mostly weight and size). I'm going to try my hand at 3D printed guns. If they work, then I want to upscale them to Big Gun calibers in future revisions. My concept is simple, try to keep with the BC gun dimensions as closely as I can. I've never 3D printed cannons before, so I'm open to any/all recommendations. I downloaded & re-re-reviewed Greg's upgraded cannons, but unfortunately I couldn't really wrap my head around them. I just can't understand the magnetic / non-interrupter style cannons (yet). SO, I decided to start with what I know and iterate from there. The biggest concern I have is the bottom plug. I don't know how thick I'll need to keep it in place, but it's pretty thin (0.01")... however that's enough to take a 1/4" bearing impact. The part that I'm the least happy about is the overhang in the bottom. It does fit in the ship; however it means I need to do some sort of support 3D print support structure. This bothers me because I'm sure the slicer is going to add supports in areas I don't want. I'm trying to think of a way to remove that overhang as my top priority. Anyway, here is the full structure, ready to print!