Thinking about implementing this kind of extra safety, the system is not as safe as some lighter weigh boogie due to the size and weight of the craft, plus the stability that comes with the size…
Received the insta 360 X5 I ordered as a discount on ali, I will mount it on the boat.
First test of the cam, great quality, screen, huge step up since last time I owned a 360 cam.
Made a mount to install it on the boat, with a older high quality benro monopod. Two of those clamps will be installed on the battery box, and the monopod used as a stick will screw into the bottom clamp. Camera a and mandatory orange towing flag on top
Remote is mounted and configured, took me quite some time to prepare everything. I made a mess with the ribbon câble and the potting, but all seems to work.
The trigger is still sticky and will not return to zéro well.
Did not add the gps in the remote, when the project has advanced I will make another remote if needed.
I also wired the watercooling system, I will see if Dynamic pressure is enough. The tubes are quite small but the water block is nice and the exact size of the controller. I removed the base heatsink. Heatsink and controller are just super glued together at the moment, with leftover paste in the middle.
Here is how the servo motor looks like, it is well burned. I checked the video but could not see why it failed, the rope did not seems to be stuck on the engine causing over torque. It was very hot day, and the watercooling only works above 15kph. It failed after I was trying to take off with the 1050cm2 foil for 15 minutes, so probably a lot of heat.
I need to replace all spacers by alu ones to transfer heat also to the bottom plate, and maybe also reduce the pivot friction.
I think so, I use it a lot to replace in the water after a fall, and avoiding the traffic efficiently. I can do quite sharp truns with me in the water with the rope in hand, with the river currents and winds it would be very complicated to handle without direction control.
I’m looking to do something similar with the same vesc but was thinking of re using those little L brackets that it’s mounted with in the original housing.
Also are you treating the other parts of the vesc PCB as it’s some lacquer or something?
Yes I tried to use those brakets, but did not have the correct screws and tap, so used 3mm thick G10/FR4 fiberglass parts and M4 screws. First I had it mounted with alu parts, but I was in fear of shorts to vcc and gnd.
I will probably mount a pump to extract more heat out even at low speed. I am not sure if some kind of ram/ cone would help to increase pressure and circulation at low speed for a pure Dynamic pressure style of cooling loop?
My tubing is smaller, with OD of 6mm and ID around 4-4.5mm.
On my tests It needed around 15kph to get flow.
The existing water block fitting are not suited to larger tubes unfortunately.
So with load or low speed for longer, it gets into a state where there is no flow, and everything is too hot to get full power needed to get to speed needed to water cool.
It does not really happen for tow foiling, but with more than one person aboard.
Regarding water cooling, I have enlarged the opening, and checked for kinks, It works perfect above 10-12kph but not below. It removes a lot of heat and at 4500W the ESC stays cool.
I have checked with the laptop what happens under full load, with the two balde 6x7 during a family ride day.
The prop is too small and does not fully load the motor, top speed was only 14kph alone in the boat.
I wanted to do the same test with the flite prop, but I was already low in battery.
The system is setup at 300A phase and 175A battery, and I could see no other limitations than the prop based on the settings and duty cycle.
Nice and fun boat ride, towing my wife on the paddle, enjoy the lake with the tiller installed while I wait for the servo replacement, but still burned 3kwh of battery just cruising along at 8kph.
After the storm short test ride, flite prop is better suited to my system, but I think I still need a bigger prop to get max power out of the system (battery can handle 150A continuous = 12.5A per cell, <3C)
