22 replies to this topic

[Bags]

Hi fellas did some more testing with the brushless outrunner motors and we had very positive results.https://youtu.be/yeKWDj8lVhI

[NSwanberg]

Do these motors utilize dynamic braking?

[Bags]

Do these motors utilize dynamic braking?

 

Thank you for the interest Nelson, no they have the same braking principal as the brushed motors.

 

Bags

[Bags]

There is a mistake in the spec box with the motor description.

 

Its an EMAX 1106 not a 1160 series brushless outrunner motor.

 

Sorry about the misinformation.

[gotboostedvr6]

Tom,

The brakes look awfully lazy, was the ESC programmed to have soft brakes? Can the brakes be turned up?

[Eddie Fleming]

with a quick look for these motors it looks like the long end of the shaft is on the other end of the motors. Are you doing something to change this or can they be ordered that way?

[Bags]

Tom,

The brakes look awfully lazy, was the ESC programmed to have soft brakes? Can the brakes be turned up?

This is the controller that is being used. It was bought at the track in used condition.

 

The power was turned up the whole way and very little braking was applied.  The braking can be adjusted thru the controller.

Attached Images

• 

[Bags]

with a quick look for these motors it looks like the long end of the shaft is on the other end of the motors. Are you doing something the change this or can they be ordered that way?

Good observation yes the magnet bell has a 2mm shaft that is pressed in from the bottom to the top and goes through the coil pack.

 

I press out the factory shaft and replace it with a longer 2mm shaft so we can put a 2mm pinion gear on it. Not difficult at all.

Attached Images

• 

[bbr]

My understanding is that the duty cycle on the esc is set at 100%. And the rpm of the motor is control by the voltage deliver to it by the typical slot car controller.
The one issue with the esc is the 5v start up, which looks like it has been solved.

If that is the case,
You have got a viable motor package for slot racing.

[Bags]

My understanding is that the duty cycle on the esc is set at 100%. And the rpm of the motor is control by the voltage deliver to it by the typical slot car controller.
The one issue with the esc is the 5v start up, which looks like it has been solved.

If that is the case,
You have got a viable motor package for slot racing.

 

Yes the switch was adjusted to make the 5 volt jolt go away. It really is a drivable system now that can be adjusted with a controller for driver preferences.

[W. J. Dougherty]

So far Ive seen these in Eurosport chassis. Anyone try them in a Flexi chassis yet? What brushed motor are they closest to speed wise? What does it cost to install the motor and any other pieces associated with the brushless motor? Thanks

[dickytenkids]

OK

now we can start to develop a motor for a slotcar rather than use a 1/4 of drone power unit 

[Bags]

So far Ive seen these in Eurosport chassis. Anyone try them in a Flexi chassis yet? What brushed motor are they closest to speed wise? What does it cost to install the motor and any other pieces associated with the brushless motor? Thanks

 

Ive been told that it’s comparable to a hot GP 12 motor.

I have a pic but it’s too big to load. It’s in a 4” flexi chassis.

[bbr]

cool - G12 performance with virtually no maintenance and lighter than brushed motor setup

[GreenLoco]

 

Ive been told that it’s comparable to a hot GP 12 motor.

I have a pic but it’s too big to load. It’s in a 4” flexi chassis.

 

 Tom's pictures.

Attached Images

• 
• 

[HarV Wallbanger III]

Very cool! The future is here!

[Dante]

John Johnston

What esc do you use?

[Phil Smith]

Tom,

The brakes look awfully lazy, was the ESC programmed to have soft brakes? Can the brakes be turned up?

 

 

This is the controller that is being used. It was bought at the track in used condition.

 

The power was turned up the whole way and very little braking was applied.  The braking can be adjusted thru the controller.

 

Not that I know, but it seems normal controller brakes wouldn't have any effect. It just shorts the speed controller input.

[Bags]

 

 

 

Not that I know, but it seems normal controller brakes wouldn't have any effect. It just shorts the speed controller input.

 

Thanks for the interest Phil

 

The braking is very good on this setup. It works the same way through the controller, if you have adjustable functions on your controller they will work on the brushless car too. 
 

Bags

[NSwanberg]

I suppose since it appears to be a wound armature in a magnetic field it could have dynamic breaking similar to what we expect from our brushed motors. I am just not sure there is not a diode involved somewhere to make the armature rotate in the correct direction that might negate the dynamic braking. Although there does not appear to be anything like that in the circuitry. This looks like it could be the motor that has the closest to equal rpm available that we will ever see. Taking the brushes out of the equation would do a lot to minimize variability.

[Bags]

In the video posted above my test and tune friend is playing cat and mouse with the other car on the track( white car).

He intentionally slams on the brakes in front on the driver’s station. It starts at a the 1 minute mark in the video. 
The car has good brakes fellas.

 

Bags

[Bags]

Nelson it’s the opposite of what you stated, the magnet bell has the mags glued to it inside. The bell rotates around the coil packs as the electrical pulses push it. In other words the mags move and the coils/ arm are stationary.

[MSwiss]

Ive been told that it’s comparable to a hot GP 12 motor.

I have a pic but it’s too big to load. It’s in a 4” flexi chassis.

Hot GP 12 motor?

I'm skeptical on that.

The lap times that were being run on yellow were just a tiny bit faster than when they run GTP bodies with stamped chassis and Hawk motors, which are way, way slower than G12's.