Marty Backe Posted July 15, 2017 Share Posted July 15, 2017 Almost one month ago my ACM burned up when attempting an aggressive hill with @Sven See the whole story here: Today I've ridden my trusty ACM again for the first time. It feels like a long time, buy nothing like @Rehab1's odyssey (although his was totally self inflicted ) I had to replace the control board (gratis from @Jason McNeil - you're the man!) and the motor (purchased from Ian at Speedyfeet for ~$250). Here is the final picture before I buttoned it up. Not the prettiest, and I wasn't sure about posting it, but why not show my dirty laundry . I opted to remove all of the motor connectors and solder everything. And instead of trying to insulate the wires (my motor from Speedyfeet had 14 gauge wiring ) I opted for isolation. I used a crap-load of zip ties to route the cables and keep them from touching anything. I feel pretty good about this solution. Even if the insulation melts they can't touch anything. And I extended the motor cables so that I could route the Hall Effect Sensor wires far from the motor wires. Yes, all the wires still get bundled up as they go through the axle. But in my experience and a few others, the melting all occurs in the vicinity of the connectors. My theory is that this is a point of higher resistance and therefore highest heat. So the cabling that goes through the axle is much cooler. We're waiting for some empirical data from @Rehab1 to perhaps shed some light on the differential heating between the axle area and the connector area. So I'm finally whole again. All four of my nice wheels are in working order Link to comment Share on other sites More sharing options...
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