Jackson, Sorry for the mechanical resistance story. we where crossposting.
Are you able to measure the voltage from the UBEC?
And what gearing are you running on your maxx?

Did you removed the BEC jumper from the 9918?

Doesn't explain why it did work, and it does not work now though..

And Yes Mike i agree on BEC problems from both of the controllers. I looked a bit misty, because of the crossposting.

With regard to mechanical resistance and binding. Am I over looking something? I am a rookie at this (3 months now) RC stuff so feel free to jump in and point me to another method.

I don't have a VOM but I could get one. It's too late to test it since it's already stripped off and waiting for new parts.

Gearing is 16/66 right now. I do also have 70t and 72t spurs to gear lower.

Yes, the BEC jumper from the 9918 was removed.

I don't expect to see the same problems again with the new BEC-less controller / motor. If I do then the only thing left is the UBEC. I didn't think it acted like that to me when this was happening so I didn't install an rx pack to test with. If it happens again, I'll put in the rx pack and return the UBEC for replacement.

All that said, I don't think it's the issue. It shouldn't get so hot as to melt off the heat shrink wrap IMHO. I could be wrong though. Mechanical binding maks a lot of sense, but I just can't find any.

The only other think I could come up with was the esc mount acting like a heat sink (via the motor mounting plate). This really seems an unlikely thing too, but I just don't know what else could make it that hot.

Here's a thought. See what you think.

I didn't put any kind of an on/off switch on the setup. To turn it on I just plug in the battery packs. Each time I did this, I did notice slight sparks as the plugs were connected.

Could this have damaged the controller and/or the UBEC? I'm putting a switch on the next rig when it arrives.

The sparks are the result of the low resistance when the capacitors are 0 volt on your speedo. It could not damage the speedo. I'm not sure how the ubec handles this.

Okay, thanks...

Just trying to cover every possible angle..

Could someone tell me if the new 9L motor (5mm) will have a flat on it, or will I need to put one there when I get it?

You'll get it with a perfect round shaft... ;)

Thanks,

I'll be warming up the dremel tool then...

Well ive got 2 more runs with the GP3300's and everything went great. I just went back out and did a run down the street, i was coming back and before it got to me it stopped. The motor does not respond at all but the rest of the servos are getting power.

I tried to re-program the speed controller and nothing. Im not getting any sounds or anything from it!?!?! Whats going on??

Here's an update on mine. I noticed a lot of end play on the motor shaft (1/16"). And roughness in the bearing when I spin the shaft.

I'm thinking bearing failure may have over taxed my controller and burnt it out.

I'm sending it in tomorrow for a checkup.

They were out of the 9918 stickers at the time. I doubt the sticker is any more than a coincidence. Quite a few have gone out with the wrong stickers. Hopefully we can figure it out.

what about maddogs problems? Any ideas Mike?

It is hard to tell without actually seeing the setup. Sometimes, a little detail can elude even the most experienced user. I am working with Drew through e-mail to fix the issue and will post when it is resolved. I am confident we will determine the issue and resolve it.

Well Mike, here is what i saw on the 9918 with the 7018 sticker...

There are 2 sorts of capacitors. (4 in totall) 2 brown capacitors and two black capacitors.. the 7018 has got 2 and the 9918 has got 4 capacitors.

The two brown ones, that sit between the wires are tight in place, and the two blacks (higher positioned) are easy to move.

Interesting. Are the brown and black caps both 50volts?