Is there a Quark 125B thermal problem? - RC-Monster Forums

coolhandcountry · 11.28.2006, 08:38 PM

Irun a 80b quark with pretty good sucess. I mounted it flat on the aluminum chassis.

zeropointbug · 11.28.2006, 09:37 PM

Coolhandcountry What motor and how many cells are you running off the 80B?

BrianG · 11.28.2006, 10:18 PM

Quote:

Originally Posted by coolhandcountry

Irun a 80b quark with pretty good sucess. I mounted it flat on the aluminum chassis.

I don't suppose you've tried 6s with it? I imagine it uses the same FETs as its big brother, just fewer of them...

zeropointbug · 11.29.2006, 01:46 PM

Hey BrianG, what if you were to use a copper spacer in the esc instead of aluminum? Also, you could even cut out the bottom of the case and stick a nice heatsink right out the case and directly on the FETs. It would be a little risky though.

BrianG · 11.29.2006, 02:07 PM

A copper plate would conduct the heat better/faster, but really, Al works well enough once it is installed with less thermal resistance. The copper slab or cutting the case would work [b]better[/i], but I have had great results just doing what I did alone.

zeropointbug · 11.29.2006, 02:41 PM

Well, you know what, i think i just might do this. Where do you start then disassembly then? Do you have a unsolder the motor tabs then?
You can just give a quick brief, i can take care of the rest...

BTW, don't you love how smooth the quark is?! It's so juicy.

BrianG · 11.29.2006, 05:00 PM

You can pop off the end where the power wires go in. To take the other end off, you need to desolder the motor wires. You can try to slide the top plastic plate off, but there is a surface mount cap by the button that may get ripped off (happened to me). You can also simply pry on one side until the plate comes out of the groove. Either way works.

Oh, and a final warning; this will most definitely VOID THE WARRANTY! Do at your own risk...