I'm looking to build an octocopter and was hoping some of you could have a look at my parts list and give me some advice, whats good whats not, anything I may have forgotten...
ArduPilot Mega kit
HMC5843 - Triple Axis Magnetometer
RCTimer P-ESC 40A
Graupner Elektro Prop 11"x5
Zippy5000mAh, maybe the 8000mAh ones
Turnigy MAX80W battery charger
Xbee telemetry from sparkfun
The Frame I can make myself from tube I already have.
Any input would be great.
Thanks I'll look into smaller ESCs.
Wire etc I have heaps of so that's not an issue.
Do I need a really special battery charger or is that one fine?
anyone got an idea what is the difference between RCTimer's BC2836-9 motor (with 40cm wire) and Jdrones motor ?
they are totally identical.
on the former jdrones motors there was a label A2836. so what's the difference between BC and A ?
Jani, could you please expand on this ?
do you test jDrones motors for correct balance ? load tests ?
I've had some issues with RCTIMER BC2836:
one had the motor fixing screws holes totally off - different place than others
one propeller spinner was really unbalanced - totally offside
and one came shorted at the lever of the shrink at the motor input wires - solved it, but still...
Not at this stage, just planning to use the Xbee for the time being.
I was going to use a 5A UBEC and etch a distro board.
For 3s , 11.6V and 12x3.8 Prop
Amps Grams Thrust
Idle 5.5 436
50% 9 650
100% 19 1100
Running at ~19 amps it gets hot.
If you get the RC-Timer motors be sure to take them apart. Mine had messy gobs of lacquer and even a hair on the stator. On one motor a magnet was glued on crooked.
yea, seems they do whatever they want without really checking anything.
That's the reason i'm asking about the qualification process and QC of jDrones.
because the motors looks exactly the same. might the difference between "A" and "BC" be the grade of QC ?