this is a almost fully printable RC sailing boat .
the model is Laser dinghy 1:10 scale from real boat. total of 460 mm long
you will also need:
1 x Flysky FS-GR3E 3 Channel 2.4G Receiver & transmitter
1 meter aluminum tube diameter 10 mm.
1 x sg9 servo motor
1 x 360 Degree Continuous Rotation RC Servo
2 x 10mm/0.39 inch Spring Clip
1 x push button 8x8 mm
1 x Rectangle Plastic 4 x 1.5V AAA Battery Holder
1 x WATERPROOF RIPSTOP NYLON FABRIC
1 X lead weight of about 400-500 g
added video of first water test
the bow is slightly diving in reach and it has some difficulty to jibe,
i added the short keel with 5 deg back to move the weight back a little.
also added a hydrofoil for keel and rudder and i cant wait to test it again..
now i need to solve the balancing problem..
Added some pictures of the keel and rudder.
For the rudder pin I used M4x30 stainless steel bolt screwed to the rudder holder from bellow , I put a 6mm OD, 4mm ID stainless steel tube in the rudder for free movment.
For the keel I used a 400 grams lead fishing weight that I drilled in it to fix it with a M4 screw that goes to M4 nut that I put in the keel top.
hull parts are hollow with 3 shells, hull mast area is 30% infill
other parts have high infill for strength like keel and rudder.
after printing all the hull parts were sanded a bit, glued together with fast curing glue
after gluing the hull was sanded again, painted with 2 layers of primer and filler spray paint with more sanding between layers to make it smooth.
after primer painted with white spray paint and coating.