Quote:
Originally Posted by Lizard
I had timing set to 'low' don't know how many degrees that is from tbe top of my head now, I think 5?
But are you sure it's looking good? I mean 48C at 17C ambient with a big fan on it and no hard driving is not that good or?
Almost 70C for the ESC also looks too high. Somebody on the offroad-cult forum said he had good results with removing the silicone stuff and the fabric and replacing it with this:
http://www.conrad.de/ce/de/product/1...-Kerafol-86600
Edit: Regarding the glitching: I have seen that on the XL2 too, but it was glitching in forward direction. Also something is weird with the ms values, it shows min 0.500 and max 2.500 sometimes, although your calibrated endpoints are around 1.000 and 2.000. Maybe an optical insulation thing like Vedder suggested for the VESC would help? |
Might be a bit too early to draw conclusions, but I think the motor temps are what's to be expected and should give plenty head-room to push it more. The plot above with the ESC temps, shows 7 passes of 120-160 kph within 2 minutes, with the last two hitting 160 kph at 90k ERPM. My TP4070 runs at ~95% of the no-load RPM at 120A load, yielding 128 kmh in the truggy. The TP5660 runs at ~94% of the no-load RPM at ~150A load, yielding 160 kmh, so it can't be wasting a whole lot more power, if any.
XL2 temps are on the high side indeed, and I'm wondering whether that's mainly caused by the Current draw, or whether the high ripple Voltage is a factor in that too. Completely forgot to pay attention to temp of the caps.
Thanks for the info on the throttle glitching, didn't know it might be a common thing for the XL2. The glitches happen both forward and reverse, in the plot with the 150 kmh run there's three in forward direction, also exceeding what the Tx/Rx can put out as throttle range...
Quote:
Originally Posted by ruudxd
Regarding the screws, why not try red loctite?
Looks like everything is steel, so you can heat it up when you need to loosen the screws?
The previeus owner of my Muggy "glued" the pinion on the shaft with red loctite, and dunked the setscrew in it, but with a pencil flame it came lose pretty fast.
|
No, the gears are plastic Ruud, the screws have very little plastic to hold on to and the plastic threads just stripped. We'll see, part of the problem is self-inflicted as I'm just too stubborn to get those expensive and heavy 8mm steel gears :).