TorqueMaster BR-XL Big Brushed Power!

[theRCkilla]

hey john im looking at purschasing the Brxl esc im going to be running a dual motor set up with 2 Tekin 35t heavy duties the 6s lipo is that just for the esc or will the motors handle power that high? also if im running a hitech HS5646 wp steering servo will i need to run an external bec any input would be greatly appreciated
thanks nick

[rcmedic]

Originally Posted by theRCkilla

hey john im looking at purschasing the Brxl esc im going to be running a dual motor set up with 2 Tekin 35t heavy duties the 6s lipo is that just for the esc or will the motors handle power that high? also if im running a hitech HS5646 wp steering servo will i need to run an external bec any input would be greatly appreciated
thanks nick

The internal bec will do just fine, and the esc will take it aswell as the motors, just not very long. 3s will do what you need well!

[theRCkilla]

Originally Posted by rcmedic

The internal bec will do just fine, and the esc will take it aswell as the motors, just not very long. 3s will do what you need well!

awsome thanks
also what batteries are best/better
i notice alot of gensace? and maxamps?

[rcmedic]

I personly run zippy flight max's or turnigy from http://hobbyking.com/hobbyking/store/index.asp here

[BadWagon]

Well looks like ill be sending some items your way soon JRH. I've got a MMP and Tekin 13.5 which could use your WP services.

[discgolferlee]

hey john do the waterproof br-xl's still look like this (minus bullet connectors of course). or are they being waterproofed and then plastic case installed over top.

[JohnRobHolmes]

They are now epoxied inside the black case. It is lighter and easier this way.

[discgolferlee]

thank you !
I just picked one up from a guy who runs a hobbyshop and he said it was not the waterproof version. so it came today and the heatsnik has some clear glossiness to it and the board seems pretty shiny from what i can see thru the case. is the waterproof coating super thin on these things now. I would have not had a thought about it being waterproof but when i saw the clear stuff on edges of heatsink it made me wonder if it is waterproofed already.

sorry can't seem to get a good pic of it

[JohnRobHolmes]

easiest to look at the leds. Conformal coating of the regular units can also get on the heatsinks.

[discgolferlee]

Originally Posted by JohnRobHolmes

easiest to look at the leds. Conformal coating of the regular units can also get on the heatsinks.

Gotcha. Thanks John I will I'll give a look on the leds

[JohnRobHolmes]

An updated mini design has just been finished and will start production right away. The first batch will be small to ensure there are no problems with production, then we will start regular production volumes.

New specs:

1.1x1.1x0.138" (28x28x3.5mm) ESC size, no wires
0.315" (8mm) diameter capacitor
1 amp BEC for internal power or RX power only
1.2mOhm ON resistance (same as big brother)
slim RX wire
Stackable design



Future tweaks to the BRXL line include an enhanced throttle mode with active motor speed modulation. It will put an end to rollaways and LOCK motor speed into the range you specify. Even rolling downhill, if you give 1% throttle the motor will not be able to coast faster with Active Modulation enabled.

[Meatwad]

Wow I like. Good choice on the low amp bec as well.

[rcmedic]

Originally Posted by JohnRobHolmes

No problems with that either. Even if the can is swiss cheese we can at least protect the components and keep it running solid under water.

What type if epoxy do you guys use? I'm going to try my hand on my ae2 esc and my sidewinder

[JohnRobHolmes]

It depends on the situation. Conformal coating, electronic safe silicon (non acidic outgassing), and epoxy potting are the three main types we use. For the SW and AE you will have the easiest time with a conformal coat applied on in 3 to 4 layers. It is one part, dries via air, and can be brush applied. A google search shows up many options for purchase. We use Dow Corning, Henkel, and 3M products on the majority.

[rcmedic]

How do you do it fill up a small small container and dip it in it, or what?

[WAM]

Originally Posted by JohnRobHolmes

Future tweaks to the BRXL line include an enhanced throttle mode with active motor speed modulation. It will put an end to rollaways and LOCK motor speed into the range you specify. Even rolling downhill, if you give 1% throttle the motor will not be able to coast faster with Active Modulation enabled.

How future?

Has this been done before?

[JohnRobHolmes]

Originally Posted by rcmedic

How do you do it fill up a small small container and dip it in it, or what?

It depends on how you want to do it, there is no wrong way. The easiest method for "at home" is with a brush or from an aerosol can. Lay down wax paper so things don't stick. Less waste than dipping since there isn't a dipping container, as most coatings don't have a wide mouth lid until gallon sized.

Originally Posted by WAM

How future?

Has this been done before?

I don't have an exact timeline for the addition, it is the next engineering task. The method I will be using for motor control has not been used in RC before, and rightfully so because it depresses the motor speed at low RPM and makes the throttle more sensitive. Great for competitive rock crawling and robotics, horrible for racing.

[BritAbrord]

Sorry i have a question, but there's a lot of posts to check for an answer ( And I'm a Newbie ) I want to run two Holmes Hobbies TorqueMaster BR-XL ESC's. Do i need a cut off For LiPo's?? If so any recommendations (Please)

[discgolferlee]

Originally Posted by BritAbrord

Sorry i have a question, but there's a lot of posts to check for an answer ( And I'm a Newbie ) I want to run two Holmes Hobbies TorqueMaster BR-XL ESC's. Do i need a cut off For LiPo's?? If so any recommendations (Please)

comes with auto lipo cut-off. why do you want to run 2 of them? from the website... and welcome to the hobby!

"The TorqueMaster BR-XL is a new ESC for crawlers, robotics, and off road trucks. It has been designed from scratch to meet the rigorous demands of low speed control and high speed power. 5 amp 6 volt on board switchmode BEC delivers unbelievable servo power at any input voltage. Huge 80 amp continuous rating. Most impressive is the 6s lipo maximum input voltage, giving even the most power hungry drivers what they want.

Comes stock with Auto lipo LVC, Full drag brake, instant reverse, and 100% reverse throttle settings.

1 year warranty
Water resistant design
2s to 6s lipo input
onboard 6v 5a switchmode BEC
50x39x21mm
45.6 grams (with battery and motor wires)
Brushed only
80a continuous, no single 540 motor limit
Stick and Castle Link programming compatible

Reverse and brake adjustment
Regenerative Drag Brake
Active Hold Brake (The Holmes Hold!)
Quiet mode

Dual motor crawlers, go fast racers, wheel speed trail junkies, pullin mofo's, robot builders, and any brushed fanatic will love it!"

[discgolferlee]

Originally Posted by JohnRobHolmes

An updated mini design has just been finished and will start production right away. The first batch will be small to ensure there are no problems with production, then we will start regular production volumes.

New specs:

1.1x1.1x0.138" (28x28x3.5mm) ESC size, no wires
0.315" (8mm) diameter capacitor
1 amp BEC for internal power or RX power only
1.2mOhm ON resistance (same as big brother)
slim RX wire
Stackable design



Future tweaks to the BRXL line include an enhanced throttle mode with active motor speed modulation. It will put an end to rollaways and LOCK motor speed into the range you specify. Even rolling downhill, if you give 1% throttle the motor will not be able to coast faster with Active Modulation enabled.

john,
is this purely a software change or will this only be available on a newer version of the esc with hardware needing to be changed. In other words will past br-xl owners simply be able to upgrade firmware? thanks and sounds like an awesome awesome tool to have in the crawling belt