1/96 scale RC model of the Civil War era USS Monitor. I designed it to have a 5mm shaft tube, and a 3mm rudder tube. The parts are fairly simple to put together, and the photos show where everything is supposed to be placed. There are 4 points of contact supporting the main deck at the bow, stern, and beams, but I plan on attaching a rim of thin rubber sheet under the inner lip of the hull to provide more support and prevent water intrusion.
Edit: After some appreciated feedback I've made the following changes:
Edit 2: I've had a lot of requests for 1/72 scale, so I went through and scaled up the parts and created another zip file. The numbers for printing measurements below will change by a factor of 1.38, if you want to do the math to check print surface fit.
For a quick preview and to check printer size compatibility, a parts List and approximate printing measurements (at 1/96 scale) is provided below. “x2” denotes multiple quantities that needs to be printed: 1) Hull Piece Fwd (L: 276mm x W: 132mm x H 40mm) 2) Hull Piece Aft (L: 273mm x W: 132mm x H: 40mm)
3) Main Deck Piece Aft (L: 240mm x W: 88mm x H: 3mm) 4) Main Deck Piece Fwd (L: 243.5mm x W: 88mm x H: 3mm) 5) Anchor Well (H: 14.5mm, Diameter: 17.5mm) 6) Rudder Mount (L: 82.5mm x W: 8mm x H: 3.5mm) 7) Rudder Mount Upright (L: 2.6mm x W: 32.5mm x H: 21mm) 8) Rudder Half 1 (L: 29mm x W: 2.5mm x H: 19mm) 9) Rudder Half 2 (L: 29mm x W: 2.5mm x H: 19mm) 10) Pilothouse (L: 17mm x W: 15mm x H: 13.6mm) 11) Turret Body (H: 33mm, Diameter: 67.5mm) 12) Turret Bottom ( L: 48mm, W: 66mm, H: 9mm) 13) Turret Cradle (H: 5.5mm ,Diameter: 73mm) 14) Dahlgren Gun Base (L: 18.5mm x W: 30mm x H: 6.5mm) 15) Dahlgren Gun x 2 (L: 37.5mm x W: 13mm x H: 9.5mm) 16) Chock x 2 (L: 7mm x W: 4mm x H: 3mm) 17) Flagstaff x 2 (L: 51.5mm, max Diameter: 4.5mm)