Mixing WK and Axial axles

[Tinkeritis]

Hello all, this is my first post and I am very new to crawlers but have plenty of exposure to RC over the years. For Christmas this year I bought my son an Axial RTC and myself a box of parts from e-bay to build a crawler for myself.

I have used a WK front axle and an axial front axle for the rear. I also installed a dna dig and have a goat 3s with a 18.5 ballistic brushless. For now I am using a traxxas tq3.

After putting it all together the tires on each axle spin in opposite directions. does anyone have a work around for this or do I have to run the same brand axles for the front and rear?

 

[Greatscott]

:lmao: :lmao: :lmao:

You have a very unique problem... The solution is to get another set of axles so you front and rears match...

 

[DonsATV]

Get one of these and flip the rear axle. "thumbsup"

 

[Greatscott]

I'm slightly confused, how will that help? There are no holes on the bottom side of the axles to mount it to...

Not being a smartass about this. I love custom/unique work and like to see work-arounds to get miss matched parts to work together. I just didn't see a practical solution to this problem.

 

[rockhugger]

I hate it when that happens...:lmao:

I think you should be able to flip your WK axle so it spins the correct way.

 

[Tinkeritis]

I'm slightly confused, how will that help? There are no holes on the bottom side of the axles to mount it to...

Not being a smartass about this. I love custom/unique work and like to see work-arounds to get miss matched parts to work together. I just didn't see a practical solution to this problem.

After a couple hours of head scratching I flipped the front WK axle 180, reversed the "C"s, ground down the 3 link bracket to fit reversed and flipped the link/shock mounts.

It all works great now but the front axle spins at a faster rate then the rear axle, is this beneficial or do I want the rear axle spinning faster than the front one?

 

[GRIMGREG]

Front faster not a bad thing, why people overdrive the front and underdrive the rears.

 

[rc_pimp]

After a couple hours of head scratching I flipped the front WK axle 180, reversed the "C"s, ground down the 3 link bracket to fit reversed and flipped the link/shock mounts.

It all works great now but the front axle spins at a faster rate then the rear axle, is this beneficial or do I want the rear axle spinning faster than the front one?

Lotts of people run over drive front/under drive rear. The reasoning behind it is to keep from flipping backwards while uphilling. When traction transfers to the rear axle the front axle will spin faster to drag the rear. It will also help to turn a little tighter radius. Its like having partial dig.
Sounds like you're building a nice rig. Let us know how the track width offset works for you. How much offset is it btw?

 

[Charlie-III]

After putting it all together the tires on each axle spin in opposite directions. does anyone have a work around for this or do I have to run the same brand axles for the front and rear?

Why not just swap the 2 motor wires so the motor spins the other way??:roll:

 

[camobob]

Why not just swap the 2 motor wires so the motor spins the other way??:roll:

Really:roll:

 

[rc_pimp]

Why not just swap the 2 motor wires so the motor spins the other way??:roll:

That wouldn't help because each axle was spinning in opposite directions.

 

[Tinkeritis]

Lotts of people run over drive front/under drive rear. The reasoning behind it is to keep from flipping backwards while uphilling. When traction transfers to the rear axle the front axle will spin faster to drag the rear. It will also help to turn a little tighter radius. Its like having partial dig.
Sounds like you're building a nice rig. Let us know how the track width offset works for you. How much offset is it btw?

Front WK axle overall with tires is 10 7/8 and the rear axial axle is 10" overall with tires. My rig is coming along great and i will be taking some pics along the way during the final build. I don't think it will be legal for comps but for me its about fun times with my son, we even started an indoor rock course in what used to be a formal living room that never got used! (my wife is still warming up to the idea)

 

[scorpion ax-10]

pics? sounds cool

 

[Charlie-III]

That wouldn't help because each axle was spinning in opposite directions.

Ummm...sooooo......swapping the motor wires on one moter reverses' it's polarity, thus causing it to spin the other way....hopefully this means both axles now turn the same direction.

Obviuosly 2 of you know something I don't, or, you didn't understand what I posted before.

Please explain.:roll:

 

[scale4x4]

i believe the axles where spinning in 2 different dirctions, so reversing the motor wouldnt do anything but reverse the axles, meaning if the front axle was spinning forward, and rear was spinning backward, the front would spin backward and the rear would spin forward, resulting in the same problem hes having but just opposite... i think

 

[Tinkeritis]

i believe the axles where spinning in 2 different dirctions, so reversing the motor wouldnt do anything but reverse the axles, meaning if the front axle was spinning forward, and rear was spinning backward, the front would spin backward and the rear would spin forward, resulting in the same problem hes having but just opposite... i think

You are 100% correct and the work around was flipping the WK axle 180

 

[DonsATV]

I'm slightly confused, how will that help? There are no holes on the bottom side of the axles to mount it to...

Ooops... Slight over sight on my part.

Ummm...sooooo......swapping the motor wires on one moter reverses' it's polarity, thus causing it to spin the other way....hopefully this means both axles now turn the same direction.

Obviuosly 2 of you know something I don't, or, you didn't understand what I posted before.

Please explain.:roll:

That would work perfectly on a MOA rig but his rig is a shafty and only has one motor. "thumbsup"

 

[krono7s]

I run wk axles up front and exceed axles in the rear. I originally did this cuz I broke a dogbone and didn't have any laying around, so I threw the exceed axle on the rear. Turns out... I love it! Gives it a different look and I have noticed in some cases it helps having a skinnier rear

 

[Tinkeritis]

pics? sounds cool

Still needs a ton of work but collecting rocks takes time.