tomjasz
1 GW
Got it, thanks.neptronix said:powerful front motors are trouble.
Got it, thanks.neptronix said:powerful front motors are trouble.
Rutiger said:Hey mate.
I was in the same mind as you when I was trying to decide which controller to get with my kit from em3ev, but ended up going with the 12 Fet 3077 for a few reasons.
A 4110 based controller allowing a higher voltage is fairly unneccessary because the MAC doesn't deal well with many more volts anyway, it would just make me more likely to break it.
The 3077 is more efficient, as you mentioned.
The 12 Fet 3077 is capable of more amps. I read a post where someone switched between a 30 and 40A controller and felt a noticable difference in accelleration, which tipped me over.
From my own experience now I'm probably going to turn it down to 30A on the CA anyway, just to make the battery and motor last longer anyway.
If it makes any difference to my info, I'm using a battery I put together myself from HK Lipo (first time) to make a 12s 30Ah pack, with an 8T motor, but only in a 26" wheel.
Raged said:I'm also sorta leaning towards a build your own lipo pack. I'm not unfamiliar with lipo and I'm quite familiar with electronics (I have a B. Eng in Systems... but it's been 12 years since I did proper nitty gritty engineering =( most of my day is documents and planning... ) the costs for batteries with extra shipping from em3ev adds a fair chunk since it tips past the $1k import tax threshold and I get slugged an extra $100 or so.
wesnewell said:I'd go with a rear DD kit. And if I lived in AU, I'd buy it from an AU dealer to avoid international problems.
http://www.ebay.com.au/sch/Sporting-Goods-/888/i.html?_from=R40&_nkw=48v+1000w&LH_PrefLoc=1
This is the signal wire from an LM35 temp sensor. Measure the voltage from the white wire to controller ground (hall Gnd - black wire - is best but throttle, ebrake, or controller (-) will do). Temp in degC is read directly as voltage - just move the decimal point. If you have a CA V3 this temp can be displayed and configured to automatically roll back power to prevent motor overheating.Raged said:Question 1 : With the em3ev kit, there seems to be a spare white wire that doesn't connect anywhere... Anyone else had this ?
this almost happened to me this morning - luckily I was slowing for a red light, a passenger in a car about 3 back from the front got out without looking, then bent over as she had dropped some money - all without looking. I waited until she stood up, then said "Oi!" as loudly as I could - she went "oh! and fell back onto the car door - hopefully she remembers to look next time...Raged said:No lane splitting or anything... All cars were stopped at the lights (about 10-15 cars deep) and I was on the left cruising in the bike lane. Passenger in a stopped car (in traffic lane) just opened the door to get out and collected me while I was in bike lane. 100% avoidable if the driver took the 5 seconds to pull over or looked at my flashing 800lumen light approaching. Shit happens, and I'm ok. It's one of those things where it's not "if" it's going to happen but "when".
Samd said:Ouch! Nice build fella.
What did you do for torque arms?
Raged said:No lane splitting or anything... All cars were stopped at the lights (about 10-15 cars deep) and I was on the left cruising in the bike lane. Passenger in a stopped car (in traffic lane) just opened the door to get out and collected me while I was in bike lane. 100% avoidable if the driver took the 5 seconds to pull over or looked at my flashing 800lumen light approaching. Shit happens, and I'm ok. It's one of those things where it's not "if" it's going to happen but "when".
Raged said:No torque arms yet as I was gonna head over to Joe Zolin's place (run's Frankencycle in Caulfield)