Yet another CRF 250 Build but its my first so... ;)

[Dave Daum]

Here is a photo showing the motor mounts pinched between the three tubes. There is no movement once the swing arm is tightened. Hope this helps.

 

[Dave Daum]

Has anyone tested any of these VESC based controllers?

Flipsky FSESC 75450 84V High Current 450A ESC Base On Vesc With Aluminum Case Water Cooling Enclosure For E-Foil Fighting Robot Surfboard AGV Robot

Flipsky FSESC 75450 84V High Current 450A ESC Base On Vesc With Aluminum Case Water Cooling Enclosure For E-Foil Fighting Robot Surfboard AGV Robot

flipsky.net

 

[DonCox]

No I haven't, But I have heard of them, as well as the E&C new controller, and 3Shul CL1000, and the EBMX x-9000 I think are all Vesc based controllers.

 

[Dave Daum]

I may buy one and give it a test.

 

[Dave Daum]

 

[fmxxx666]

Interesting controllers but my X-9000 is also VESC Based.
Even a nice plus is that it has a 12v converter build in, so no extra wiring and device needed to run things like lights / horn or a waterpump.
cool thing is, it has 3x 12v outlets one specific for Waterpump so you can set an exact value where it should start pumping for example motor temperature etc.

was thinking to maybe install a horn or some sort of funny sound device to warn ppl in front of be when I am about to overtake xD as I have seen some scary Stark crashed only happened since no one noticed the E Rider beeing behind them.

I just recieved the Bussmann fueses up to 125VDC and 500A and they seem solid.
but AMH is not a common fuse Type so there are no Fuse holders out there for AMH Fuses they are usually build in in specificly made Car Fuse systems.
So I went with an "ANF" fuse holder and modifyed it to fit the AMH fuse



I have seen many run this sort of connections "more open" (unisolated)
we are not talking a car here where the whole frame is the Negative Pole but I am still uncomfortable having any Positive leads exposed to the elements.
So I will even put a waterproof wrap around this fuse holder:


same goes for the open joints for the leads on the controller, planning to cover them with liquid electrical tape

all other wiring connectors on the bike I will additionally cover with waterproof heatshrinks

makes it harder to undo something of cause but I like the idea that I can carefree pressurewash the bike from any angle without having to fear that water stays in certain areas and can cause any damage.

 

[DonCox]

You are right about frame not being the reference ground in the system, but I think the controller or motor do have ground on their cases. I had a wire come loose, and it sparked to the frame, but no serious damage, this started me looking into an earlier fuse in the power circuit.