BlueBoat Propeller Protector

During transport and handling, the propeller blades of the BlueRobotics BlueBoat are exposed and prone to bumping with other objects. The Propeller Blades Protector provide a hard cover/shield for the blades thereby reducing risk of scratches, bending and cracks that maybe caused from bumping with other objects.

The Propeller Blades Protector is 4 parts (2 for left/portside and 2 for right/starboard). They consists of:

1. Protector Cap (blue)
2. Clip On Stopper (green)

— Mechanism —

The ‘Protector Cap’ has two pegs that aligns with the propeller's two M3 holes so that it can rotate together with the propeller. 

The ‘Clip On Stopper’ would clamp to the black metal propeller shaft behind the propeller and would hook into long horizontal cavity on the metal shaft (inner side of the catamaran) … while the ‘Clip On Stopper’s slot hole would slide into the protruding peg of the ‘Protector Cap’. This mechanism should prevents the ‘Protector Cap’ from sliding out.

The allowance provided by the slot hole of the ‘Clip On Stopper’ should allow some rotating/swivel movement (~30°) of the ‘Protector Cap’ when (and if) the ‘Protector Cap) receives a force that makes it rotate at the propeller’s axis.

– Use / Putting it on and Taking it off —

The Propeller Blades Protector can be put on to the Propellers of  the BlueBoat when the BlueBoat is folded or unfolded.

To put it on: 

1. Slide the ’Protector Cap’ into the propeller, align the 2 pegs with the 2 propeller’s holes.
2. Slide the ‘Clip On Stopper’ on to the propeller shaft, make sure it hooks into the cavity of the shaft while the slot hole slides into the peg of the ‘Protector Cap’. The form should settle to the propeller shaft…

Do the opposite to take it off…

— Printing —

When printing using BambuLab X1 Carbon, all four parts can be printed in one plate. 

We need to print using support for the overhang sections for all parts, and a painted support at the end of both thin arm of the ‘Shaft Clamp’ + Outer brim.

It takes 3h 26m to finish printing the parts at 0.2 mm layer height using Sunlu PETG.