Agree 100% with Kieren...

My comp Mini uses a 7955 on 6v, 22 uses a 7950 on 7.5v and the Super 7980 on 7.5v...

For crawler I actually use a BEC per servo i.e. the Super actually uses 2 CC BECs...

Geesh, I only have a 7950 on my 5T conversion.... well we'll go with what I have now, and will swap later as needed. :)

nothing will piss you off more than a weak servo in your crawler. I have stalled 9100hvt, 7950, and a 7980. buy the strongest servo you can find for a crawler, its not just nice to have its pretty much required.

and to sum up the br-xl its basically a super smooth super strong brushed speedo that can handle up to 6s and has a CC bec built in, not much in comparison in power or price wise, it also has crawler specific software.

Well, to be honest, 6s Lipo in a Crawler :surprised: 80 Amp continuous :surprised:...maybe I'm missing something....

I've two Crawler, a 2.2 and a Big Scale (look at my signature) and never go beyond 3s lipo. My motors are brushed, 540 size for the 2.2 and 600/650 for the big one. Maybe in a stall situation they reach 30 ampere, but normally they don't use more than 10 ampere.

On the other side, the ESC has a quite standard BEC rated a 5a, that is not enough to drive the servos usually mounted on a Crawler, so You need an external BEC anyway.

Yes, the price is actractive, but for the same bucks You can get a Castle Sidewinder, that can also drive brushless motors and is perfectly rated for a crawler.

Bye, Andrea.

Holmes esc has active drag to. If you have tried it yet it's amazing.

I run 4s on Super.

I actually just swapped from br-xls to dual micro pros on the 22, run a STD micro on the 1.9 and br-xls on the super.

Castle all the way; Now I just need a sponsor! ;)

Did you resolder the with a higher guage wire on the micros? I do have a MicroPro running around I could use.

No its normally the other way around - skinny down the wires to 16ga or less to save weight...

PS Word of caution - Using Micro Pros is considered edgy on 3s with a 35T motor... Just be careful about what your setup is.

No way I would use one on an LCC or a single Micro Pro on an MOA or even an AX10...

I'd really only use Dual Micro Pros with an MOA rig or a 1.9 crawler.

Ok, well, guess I'll just look at the MMP then and potentially a CC BEC as required. I really hate to be limited to brushed only.

Almost the same, except I don't have a mini, and I'm thinking of going 7980 in my new 2.2. But I think 46kg in a what will be 4-4.5pound rig is a bit much:lol:


The MMP will be a good alternative, it's quite popular with the losi guys who have to run 17.5-21.5 sensored brushless on 3-4s just to get enough power through the worms and out to the wheels. If your only going to use it in a crawler, the 1s version might be a good alternative. No fan or internal bec and the nice solder posts, make it perfect for crawlers. As you should never really see the fan come on in a crawler and the internal bec is only adding weight. The only disadvantage is if you chose to get a HV servo and run the bec direct to the servo, as some receivers don't like more than about 7v plus the amp draw isn't to good for them either really, you can't use the internal bec in the ESC to run the receiver. Because there is none. Oh and if it's going in a crawler, a bec is required, no question asked. Internal becs in ESCs don't like servos being turned without any forward motion of the car.

Kieren

7980 is a bit heavy / big for a 2.2 but my opinion may change.

Stupid thing with the 7980 was the fact that they scaled up the mounting holes spacing - how dump are the cad designers!

You could be right, but what other servo puts out that much power:mdr:

Well I made the mounts on my super for the servo so that part hasn't worried me, but it could be a pain on other cars. I do wish it was a bit quicker though. If they regeared the 7980 so it had about the same torque as a 7950 but much faster, I'd pick one up at the drop of a hat. Something around 490-500 ounce torque and 0.1 second speed would be perfect!

Kieren

On which motor ? A brushed one ?

4s on homles 35t brushed

Just figured I would comment here.

The only parts that are shared with the sidewinder and the TM controller is the plastic case. The board was custom made for me and the design is new (as of two years ago when we designed it).

6s 80a overkill for most crawlers? Yes it is, but overkill is not always a bad thing. 5a BEC enough for most crawlers? Yes it is, unless you are competing and are using over a 300 ounce inch servo or need to turn up the BEC voltage.

We will be adding some new features to the firmware as time goes on as well, ones that will really add features that crawlers and offroad bashers need. This controller is specifically designed for total motor control, and recently we have been installing quite a few units into battle bots as well since the features really work well for them.

Beyond that, a new controller that is smaller is being developed as well. But all the software features will port over.