Manta 2017 RG65 sailboat

This is a remix of https://www.thingiverse.com/thing:2572866, to accomodate Molineasails Keel, and swing rig.

This remix is basically only for the midship section and the keel box, to accomodate Molineasails swing rigs and keel-rudder combo, with a slightly different sail servo mounting bracket, and a few other small changes according my favor.

Print instructions:

Hull:

Use vase mode with 0,2mm layer height (can be finer but not really necessary), with 0,55mm line width. I printed the two ends with the ends facing down to avoid bulkheads (here I used 4 bottom layers, so 0,8mm thick overall). Here I really recommend eSun PLA+ due to the durability, if You find the correct temperature it is practically unbreakable, for me it is 220c degrees, but experiment on your own please, but a good starting point. Hull sections and smaller parts like rudder servo brackets, access cover reinforcements, etc bonded together with Revell contacta professional (the one with the needle), due to quick drying time and the joint is practically welded together. I do not recommend to bond the keel box, due to possible deformation on the hull, use acrylic or urethane adhesive, or some flexible epoxy (sanding and degreasing recommended here as You would normally do).

Other parts:

I used 0,2mm layer height with 0,4mm line width 3 or 4 perimeters (up to taste). The bumper is printed from TPU with 0,12mm layer height, 2 walls with 0,4mm line width, 0% infill to make it squishy enough (I used Geeetech 95A TPU).

Hatch:

I printed from TPU vase mode, 0,7mm line width, 3 bottom layers.

Other notes:

Most of the parts are designed to use with M3 heat set inserts (I became a big fan of those).

The sail adjuster uses a ball bearing also from Molinea sails (I will check dimensions if needed).

On the pictures You can see an early version, the final is the same but some parts were integrated for easier work, or just implement the heat set inserts. (on the old version more stuff is visible due to different colors)

You can print, build and sail this model in one week with approx 1-2 hours work each day, some RC building skills are required, but if You are completely new, I guess a bit more time is needed to find out what is going which place.

RC gear:

Sail servos:

HS5245MG (minimum recommended, but there is a bracket for that size)

HS645MG (My preferred size with good price-value ratio)

Rudder servo:

HS65HB or MG (but any other servo will work in this size)

The licence is the same as the original, for more info please visit that model too.

note: I had the rudder servo bracket disbonded from the bottom of the hull, therefore I added some reinforcements afterwards to improve bonding surface area. Not perfect, but does the job and almost not visible. You will need to print 4 of those.