3D printing is a very capable method of producing custom parts for model RC boats. I use Autodesk Fusion 360 to design my parts and 3D print them using my Creality Ender Pro. I typically use Tough PLA filament for my parts. It’s easy to print and is generally tough enough for the type of sailing I do. If you want to use a more exotic filament material that your printer doesn’t handle very well, you can get your parts printed in a choice of materials by any number of vendors on the Internet.
Here are some pictures of the type of parts I have made for my boats.
Victoria Parts
This graphic shows a Victoria servo mount with various sail servo and rudder servo combinations, a deck brace, rudder arms, and boom fittings, all of which have been 3D printed.
Victoria Gooseneck — (9mm carbon mast)
This graphic shows a gooseneck for a 9mm carbon mast for a Victoria. The gooseneck is drilled for a 4mm diameter swivel bolt, and for channels for hold down line for the main boom.
DF65 DF 95 Tuning Stick
This graphic shows a 3D printed tuning stick for DF65s and DF95 sailboats. The stick is made of two parts, one with the measurement notches, the other with the standard values for DF65 A+ rigs and DF95 A rigs. The two parts are fastened together with a plastic rivet that allows them to swivel. Other values can be written on the backs of the parts using a Sharpie.