did the same thing (+the button) works after resoldering

Thanks for the pics thast gonna be fun

ALL DONE

quark even continues to run :)

got better heatsink + a 24V fan (will off 16cells) to improve the cooling even better so we will ses on weekend how long it will run

hope it survives till MMM or Tekin is around

Lol. Well, that's a good start!

You may notice that the heatsink gets hotter faster and cools faster now that the heat can transfer faster (a good thing).

I wanted more normal fan but for 5V that i could run from reciever are hard to get and only 40mm and 12V on 6V might not work well so 24V on 18V should do fine :). If it survives one battery pack run (IB4200 team cells) on track i will be happy

looks like the mod really works. wasnt running that hard but quark case was nicely hot and no thermal issues even tho probably rock got into fan and trashed it so quark had just passive cooling :)

That's good! Yeah, the case gets hotter now, but that tells me the heat is getting to the case faster and not staying in the ESC. So, if you were able to run without the fan, a simple addition of more heatsink area to the case should let you run with no fan at all (in case you haven't heard, I hate to use fans in an R/C).

As do I, that's why I'm gonna make my custom Quark case, should work lovely. :017:

Perhaps the extra caps take away serious heat from the quark.

Yes, that too, I will be doing that as well.

You should try it Serum. You probably have good quality caps available over in Dutchland.

wallot,

Do not feel as though you are alone. I got a Quark and it had issues, so I sent it to S&T and got a new one. When I pulled the new one out of the bag, one of the motor leads fell off. That was encouraging. I soldered that back on and wired up my Quark. It runs for about three minutes before shutting down with the yellow light blinking. The case is reading 98*F.

I got Frank at Quark on the phone and told him what was going on and that the unit I got was already a replacement for a defective unit. It really sounded like he didn't even want to deal with it. He just told me to fax a copy of my receipt to them and they would give me a refund. What's up with that? The problem is that I don't know where my receipt is; besides, I don't want my money back, I want an esc that works.

I suppose I'll have to do the "mod" and hope that's the problem. As is stands now, my modded MM is head and shoulders above the Quark.

Hmm, not encouraging, hopefully Frank was just having a bad day. Would a MM work well with an 8XL on 16.8v?.....

I know I read all the threads here :)

It sucks that smoothest ESC and must have for Neu has serious thermal issues in bigger trucks. they they call it Monster Pro when it has issues in Monster Trucks.

Oh well after the mod it seems to work.

@ BrianG- to save me searching like an idiot, what kind of material is best to use for the replacement heatspreader? I see the dimensions on page1 of this thread, but just out of interest & for future reference...

I used 1/8" thick 6061 aluminum.

Cheers dude.