Dual motor, dual esc mixing, explain it to me please?

[Paulnb57]

Can someone talk me through dual motor, dual esc mixing please?

 

How does dig work without a dig unit?

 

Can you mix motors to give “overdrive” to one axle

 

Advantages disadvantages?

 

 cant find anything by googling...

[Fly In My Soup]

Ive ran a few twin motor builds... Both brushless and brushed. 

 

Well firstly, with twin motor you'll need to decide Wether your going with one esc or two... 

 

I've opted for both options in the past... And found that a dual esc is by far easier to setup and maintain. 

 

Also, if your going brushed... Yes your motor on the rear will be facing the opposite orientation to the front motor... So the motor leads will need to be swapped around... So both motors are powering each axle the same way.... 

 

When this is the case.... The rear motor is actually spinning in reverse rotation to the front motor.... Meaning it has a litlle more torque but less rpm.... So is by definition.... Underdriven compared to the front.... 

 

Hope that helps

[ruffryder]

Each esc has a range from 0-100. DIG works by flicking the switch you've dedicated for DIG on the radio, resulting in one esc  being set to 0, while the other is still at 100% drive.

You can mix the motors to give more or less drive bias front to rear. 5% increments is about right.

There are many advantages  with overdriving both front and rear. Practicing with both on the same lines will give you the best idea on the different effects. Overdriving the front on climbs will stop the rear getting more grip than it needs and unloading the front end, making the front pull away from the rock.

Overdriving the rear can help with 'clod stall', which happens when the weight of the truck is on the rear axle, making the rear motor stall slightly. overdring the rear on a diagonal climb can stop the front from losing grip and 'washing out'. That's just a few examples.

On most MOA axles, the rear motor needs the polarity reversing. I think it's only the XR10 axles that need the front motor reversing. If you just swap the motor wires over, the motors may be set with slight advanced timing, which will result in the rear motor to run retarded, and you don't want that. It's fine if both motors are set to zero timing though.

Best way is to loosen the two screws in the endbell and turn the endbell 180 degrees.

[Paulnb57]

12 minutes ago, ruffryder said:

Each esc has a range from 0-100. DIG works by flicking the switch you've dedicated for DIG on the radio, resulting in one esc  being set to 0, while the other is still at 100% drive.

You can mix the motors to give more or less drive bias front to rear. 5% increments is about right.

There are many advantages  with overdriving both front and rear. Practicing with both on the same lines will give you the best idea on the different effects. Overdriving the front on climbs will stop the rear getting more grip than it needs and unloading the front end, making the front pull away from the rock.

Overdriving the rear can help with 'clod stall', which happens when the weight of the truck is on the rear axle, making the rear motor stall slightly. overdring the rear on a diagonal climb can stop the front from losing grip and 'washing out'. That's just a few examples.

On most MOA axles, the rear motor needs the polarity reversing. I think it's only the XR10 axles that need the front motor reversing. If you just swap the motor wires over, the motors may be set with slight advanced timing, which will result in the rear motor to run retarded, and you don't want that. It's fine if both motors are set to zero timing though.

Best way is to loosen the two screws in the endbell and turn the endbell 180 degrees.

Thanks!