Assist V.2 Green board

[Jan12]

I started my motorized life this may with a simple conversion of my SUP-foil board. Worked well enough, but next step was something less bulky.

So I did my second iteration with a simple XPS board and standard components.

Board is 41l , 5’4 by 19" with a hatch for the electronics.

MKS 84100HP and BRemote2 receiver in semi-waterproof boxes. 4x6s batteries (EVE INR21700-40PL) so I can easily charge them in the car with cheap and tiny charger s. I put the batteries in freezer bags as secondary protection in case of minor amounts of water inside.

Motor is Flipsky 6384 with a modified pod that was shared by bzhwindtalker. Modified it so it had enough clearance for the wires of the Flipsky motor and opened in the back to easily get the wires with connector in and out.

Board includes a small alu plate connected to the ESC to get the heat out.

Next steps are to reduce weight by trying the 6374 and getting rid of the alu casing of the ESC

[Jan12]

And I will build some 4s batteries and see if I can save some weight that way, without loosing too runtime.

[windego]

WHat is the weight breakdown of the system.=? Looks good. Been thinking of a build like this over the winter.

[Jan12]

Board including hatch, ESC, receiver and cable is about 4kg.

The batteries are about 440g each, so 1.8 kg
The motor is 1.1kg

Don’t have the weight for the pod or the foil.

[Jan12]

So instead of getting rid of the case for the ESC, I got one of the 75200’s they sell really cheap right now. The cable layout also works better for me.

With a simple 3D printed case and alu bottom, this saved 220g compared to the 84100 with it’s heavy alu case.

Also fixed up a quick case for the BRemote2 RX.