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suicideneil
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Join Date: Feb 2007
Location: Devon, England
12.28.2008, 07:51 PM

Final update on testing:

Killed it

Its weird, 3 trips back the motor was fine, just needed a cooling down break after 10 minutes or so to keep things under 180*F.

2 trips back I decided to gear up seeing as the batts and MMM were fairly cool, so maybe I was too conservative on the gearing and actually under geared it. Answer was no, I was just pushing to hard and got the motor upto 180-190*F in 5 minutes, so lots of coolling down breaks that session (until I killed the tranny again).

Final trip out on Saturday and I was hopeful- geared it down a fair bit and ambient temps were stupidly cold, so... Anyways, started out fine and after 5 minutes I was only at 110*F on the motor, brilliant, then a large crowd gathered round of families and kids who were in the park (who takes their kids to the park on a freezing winter's day, weirdos...), asking lots of questions like how fast/much £££/where from/ power source etc etc. I put on a little show for them; basically stupid amounts of WOT and crazy suicidal high speed passes that were rather dangerous as the crowd were stood infront and to either side of me, so I couldnt really see where I was going all that well from my parkbench/shelter location. No injuries though, just lots of 'woos' and 'wows' (massage that ego baby), until the truck suddenly ground to a halt and refused to move again, just rocked back and forth when I appied throttle. I was hoping it was a loose pinion as I now have an all metal tranny gear setup, but nay, I saw the small stream of white smoke coming from the front of the motor when I picked the truck up, and knew it was toast; temped at 242*F which is much less than the 358*F the hobbyshitty motor died at.

Upon opening up the motor I noticed the magnet was incredibley weak even though it hadnt been cooked that baddly- free spinning with zero resistance, and the windings smelt like an old ashtray again, so no saving this motor saddly. Still, I have another cool fridge magnet, and a really cool pencil holder...

Anyone know if Mike will be selling the 80mm Medusas? I emailed him about it on saturday so hopefully will hear something next week (only the 50/60/70mm motors in the store at present).
   
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