Quark 125B / Sky Technologies - Page 2 - RC-Monster Forums

neweuser · 02.05.2007, 02:57 PM

The thing is, the Quark is not a BAD esc really, but when you have the MM that is better, then it makes the Quark look like, well, ah, yeah....

Serum · 02.05.2007, 02:59 PM

It makes the quark look like a gigantic overpirced silver box with the same capabilities.

The quark is rated for 6S but works till 5Sm the mmax (les than 1/2 the its size) is rated for 3S but works like a charm on 5S most of the times. Costs less than halve..

02.05.2007, 03:02 PM

yeh lol which is sort sad... and i know cc has a esc with INSANE voltage capability, it has to have a minimal of 16 cells.. so i think the mmm will be the best out, and if it works the the mm then it will go over its limits even father then most speedos out there for less money then the quarks and all

and i wonder what the motor will be like :D

neweuser · 03:20 PM

I agree with that Jhautz. I can never get my Quark to cogg. Not even holding the truck and pulling the trigger. The motor still responds like it's sensored. the only thing I don't like is the heat issues!!!!!!!!!!!!!!!

Serum, I also agree, a bit over priced compared to the MM esc. And, the mm is easy to program.

Glass. That would be awsome if we could use the Neu with the MM with no issues with starting and what not, it would be one of the best set ups out there!

jhautz · 02.05.2007, 03:31 PM

I agree with the heat issue being s BIG negative on the Quark. But once you get it solved with a heatsink or fans, it a hell of an ESC. The MM is probably the best deal out there for its price/capabilities. Ever=yone says the MM runs 5s, but its no better than the Quark on 6s IMO. Its a borderline setup thats just asking for problems.

The Quark is a solid 5s controller and the MM is a soild 4s controller. If the MMM is a solid 6s controller with all of the feature in the MM, there will be no match for it. Escpecially if its cheaper than the Quark. I know nothing about it but my guess is that it will be around $200 - $225. That seems like it would be a sweet spot for it.

neweuser · 02.05.2007, 03:38 PM

The heat issues are a definate neg side, could be worse. I think 225.00 or so would be great for an esc that has the capabilities that the MM has!

02.05.2007, 05:56 PM

yeh id pay 250 for a esc like the mm, but with higher capabilitys

wallot · 02.15.2007, 11:11 AM

Is quark a 6S a123 cells capable?

neweuser · 02.15.2007, 11:13 AM

Quote:

Originally Posted by wallot

Is quark a 6S a123 cells capable?

Well, I know that the Quark does not do well on 6s for lipo, not as familiar with the A123 cells, but I would almost assume no...

Sylvester · 02.15.2007, 11:40 AM

That would be a good test. I think its a 50/50 chance. Somebody should try it out.

wallot · 02.15.2007, 12:21 PM

in theory it should be ok as nominal voltage is 0.4V less than LiPos and 6S A123 has same V as 16.5 NiMh

02.15.2007, 08:54 PM

Ah cr@p. I picked up a 125B and now I hear about the heat issues. Since I committed, where can I find info on these sink mods? Are these issues insurmountable with a small fan? thx

BrianG · 02.15.2007, 09:08 PM

Basically, you can use whatever heatsink you want depending on your application. I've used an 1/8" thick angle aluminum with a small heatsink mounted on the "leg", some have used jhautz's heatsink, etc. Whatever will work for you. Just use thermal epoxy to secure the heatsink to the back of the Quark case. Once you do that, you won't have heat problems and you won't even need a fan. Even without the mod, I've never thermaled; I just wanted my ESC to run as cool as possible.

About the fans; some swear by them - I try to avoid them if possible. It's just one more mechanical thing to go wrong and they tend to go bad faster in dusty track environments. Just my $0.02.

02.15.2007, 09:17 PM

Thanks for the input Brian. My plan was to mount the esc bottom side directly to my CRT chassis via CPU paste. Not sure if you've seen my CRT project thread but there's pics there showing the plan. I also don't want fans. Fans are band-aids. Use them only if you have a boo boo is my philosphy. But from reading above, it read like there was an issue with how the Quark conducted heat from the innards to it's own case. If this is the problem, my external chassis sink plan wouldn't have helped. I will be running a Neu 1515/2.5d on 5s. Think I am ok?

jhautz · 02.15.2007, 09:31 PM

Quote:

Originally Posted by wallot

Is quark a 6S a123 cells capable?

I havent tried it but the A123 cells dont peak at as high of a voltage as lipo and my quark runs 6s fine after the voltage starts to come down a little. I would tink the 6s A123 would be just fine.

Quote:

Originally Posted by cadima

Thanks for the input Brian. My plan was to mount the esc bottom side directly to my CRT chassis via CPU paste. Not sure if you've seen my CRT project thread but there's pics there showing the plan. I also don't want fans. Fans are band-aids. Use them only if you have a boo boo is my philosphy. But from reading above, it read like there was an issue with how the Quark conducted heat from the innards to it's own case. If this is the problem, my external chassis sink plan wouldn't have helped. I will be running a Neu 1515/2.5d on 5s. Think I am ok?

Your OK. That should work great.