scorpionice
10 W
Thanks for the overflowing pictures. Too bad your upside down photo did not work as planned.
izeman said:i have some serious stutter issues with this bike (mac motor and eb309 controller).
i suspected my CA to be thr problem but no think that other things may be the problem.
i had a broken fet (had one before) and replaced it with a 3077. only then i realized that all (but the one replaced before and the now replaced one) other fets are 3307. i don't know about those fets but i could imagine that this could cause the issues i see.
i also see a no load current of 7a (if my CA reads correctly - will check with a turnigy watt meter as well). i can't imagine that there is a hall/phase combination issue as the bike runs nicely at very low throttle and nicely on wot.
if you have any ideas what else could be wrong please let me know!
izeman said:yes. current was correct. i double checked with a turnigy wattmeter in line which showed even slightly higher amps (0.5a+).
how would i check for a bad phase winding? i wouldn't mind if the motor was not ok, as i have a spare one and i plan to convert a third mac from scratch.
if adopting the spare 12fet wouldn't be so much hassle i would have done it already.
izeman said:the no load current worries me most as it pure heat (350w) that stays inside the motor.
i don't have an oscilloscope. how would you measure the resistance other but with an ohmmeter?
Dunkenb said:Could you use a fly by wire system similar to a motorcycle? Throttle cables that link to an actuator inside the battery compartment ? I'm sure you could canabalise a fuel injected bike throttle from a breaker ?
you got one to spare? i'd like to test them.madin88 said:as for the controller i have a suggestion: Kelly KBSX with optional waterproof (the case is mould with epoxy resin, so it should be real waterproof). These controllers work very well with the MAC Motors - even a bit above the rated ERPM. The programming features are far better than the few ones Infineon controllers do have. I like to work with them.
izeman said:you got one to spare? i'd like to test them.
edit: afaik cyclone ships their kits with kelly controllers, don't they? and can i use them with my CA?