My take on backpack assist - first bild

[FASTnSPEEDY]

Cabronfoil, did you ask/consider having Saite make the leads long enough to make it to the backpack?
Edit - from Chris at Saite store:

"standard motor US$95.2 per pcs, waterproof motor with 2 meter cable is US$166 per pcs.
it is ceramic bearings and stainless bearing together, can be all stainless bearing if you want, unit price would be US$176 per pcs"

I didn’t realize Saite shipped multiple bearing types - I understand this is how the foil drive is built (https://help.foildrive.com/en-US/replacing-and-securing-bearings-on-foil-drive-motor-200447) - figured I’d point this out as I didn’t realize that.

Cabronfoil, thanks for putting this together, this is more-or-less what I’ve been looking to do, great to see it all summarized in one place!

[Cabronfoil]

So, for you that already have built this. How tight is it in the box?
I am conditioned by the batteries I have bought, that are two 6S2P batteries connected in series.
Initially I was planning to copy @JonathanC, but the Camdenboss 321 doesn’t fit and I would then have to go up to the Camdenboss 322. Now I have found that CHDX8-224C fits better leaving less dead space:

So general question is, what is the minimum space needed between batteries and sidewalls?

[Cabronfoil]

It looks like I can get the long cable for the same price, so I might try this first. If I don’t like it, I will get the spiral cable others have tipped me about.

Once I have all parts sorted and I start building, I can give a detailed list of everything needed.
Keep in mind that I have only copied what others have done

[Cabronfoil]

I have started to reveive parts and I am tempted to print my own box. In the picture it is just a prototype, but if it turns out being, I will proceed to print it in resin.
For now it feels sturdy. Anyone else that have gone this route?

[Cabronfoil]

Maybe someone can pin point me in the right direction?
I have now a 75100 vesc and receiver from fs vx5. How do I connect this together? Can someone show me how it looks on your setup?
When it comes to the three wires from the motor, does it have to go connected in a certain way or will the vesc tool figure this out durings first test run?

[Foilguy]

@Cabronfoil

This is wiring for your 75100

This is diagram for vx5 receiver

I would recommend you connect them via UART so you can take full advantage of the vx5 display capabilities.

Your photo shows the ppm cable - you need a different cable for UART.

There is a package of cables with vx5 that will give you the correct connector ends and number of wires

You need TX RX GRD and 5V so 4 wires.

The 3 phase wires to motor don’t matter. If motor spins backwards you can swap any two of them or use the VESC to make it spin the correct way.

[Cabronfoil]

Thanks Foilguy!
So I went through the cables and this one gives me 4 cables with:
5v
Gnd
Rx
Tx

So this should be correct? All other cables can be disconnected from the vesc?

[Foilguy]

It’s probably the right one. Hard to tell from photo and I don’t have hands on with your VESC.

Looks like you are connected to COMM port on VESC which sounds right.

Just follow the pinout on diagrams to ensure you have the correct wire paths to those 4 items.

You don’t need other cables connected for reciever to work.

What a lot of people do is buy the Flipsky Bluetooth module so they can program VESC and collect log data on a phone rather than a device wired to the USB port. If you do get that you could connect it to the UART port as it also requires RX,TX GRD and at least 2V so the 3.3V on yours would work.