Rc sailboat MICROMINI 065

Scow rc sailboat.

Design freely inspired by the Mini 6.50- Mini Transat , single-handed ocean racing yachts.

Friends knew my designs for high-end carbon-fiber mini sailboats.

In winter 2021, they asked me to create a model that would be easier to access, in terms of dimensions, budget etc., so they could get started with their children. The idea came to me to make a miniature Mini Transat, to take up the minimalist philosophy of these solo ocean-racing mini-sailboats in an RC sailboat.

All elements of the project were printed on an Ender CR10 S Pro (300x300x400mm) , in PLA Polymax Tough (allow 2 spools for trial and error).

Only the radio soft cover is printed in Flexfil. If you don't feel like investing in an extra spool to make the lid watertight, you can also close it with a simple latex glove ;-) It's invisible under the cover-roof.

3D-printed hull elements, fittings and appendages (please note different printing parameters).

• Carbon tubes diameters 3, 4, 5 and 8 (repair supplies - kite making) for rigging.

• Thread, textile dyneema (overbonding thread) for standing and running rigging n(1,2mm for shrouds and sheets) , 2mm for textile shroud chainplates (with a good knot and embedded in epoxy glue in hollow chainplate padeye capsules)

• Welded stainless steel rings, stainless steel staples (fishing supplies)

• 2.9 x 16 stainless steel screws from DIY stores

• Stainless steel snap ring 4mm diameter for rudder rods

• Stainless steel threaded rod for rudder links

• Mini domino for attaching rudder textile linkage to rudder servo booms

• 4mm stainless steel threaded rod for removable keel attachment

• M3 brass inserts for rudder sectors and central helm sector (in aft hull section)

• 5' epoxy glue in double syringe, Araldite type

• Super Glu liquid cyanoacrylate glue

Provide tools (metal drills diameter 3, 4, 5 , 8 to make the various holes in the radio cell, rudders to receive stainless steel rod and femelots rudders

• Ball-and-socket joints to connect the 2 rudders to the central helm area

-M4 brass inserts for upper and lower keel threaded rod (one insert is cast into the lead bulb, the other into the fixing knob)

Radio plate for servo dimensions:

• Savöx 0230 servo for steering system

• Savöx servo 0231 for sail trim

• Programmable 2-way radio control (for easy adjustment of limit switches)

• ICAREX PC31 fabrics for sail making

• Elastic roof lock: 4mm bungee cord

• Fishing lead: 800gr for keel lead casting

Hull finish; roof and appendages: water sanding; epoxy putty; PU body primer, PU paint

wooden cradle, stainless steel screws, nylon straps

Contact me by e-mail to receive the illustrated assembly guide and the PDF file of the sail plan, or any other info!

Print parameters are detailed in the PJ file for the hull, rudders and keel, fittings and watertight flexfil cover.

Parameters are those used on an ENDER CR10 PRO V2 printer (300x300X400mm).

IMPORTANT NOTE:

The rear and front parts of the shell require an available print volume of 300x300x400.

Each piece of the hull measures 28.8cm wide by 33cm high.

An overview of the parameters here;

Radio cell: layer height 0.28mm / wall thickness 1.2mm / fill density 33% / fill pattern triangles / speed 50mm / borders 3mm / temperature 215° (to ensure the best interlayer cohesion for these hull walls)

Front part of hull: layer thickness 0.2mm / walls 1mm / filling density 2% with distance between filling lines 60mm (this creates a large internal cartilage in the hull volume) / speed 60mm / temperature 215°.

All other fittings: layers 0.2mm / temperature 215 / speed 50 / wall thickness 3mm / skirt support 3mm

Keel / Halyard / Rudders / : with supports

The bulb housing allows RV silicone casting to obtain a mold compatible with lead casting.

The two hull elements require more than 24 hours of printing each. Pay particular attention to adhesion to the printing plate, as it rises to 33 cm ...

link to videos:

https://www.facebook.com/100009538330967/videos/657668318732148

https://youtu.be/s31BLj2CQw8?feature=shared

https://www.facebook.com/voilesrc/videos/765357961181146/

https://www.facebook.com/voilesrc/videos/1040265353247577/

https://www.facebook.com/voilesrc/videos/487018616184505/