Muggy diffs in a maxx

[_paralyzed_]

looking good

[its me]

would any one happen to know the foot print of the MMM???

[_paralyzed_]

2.2"x1.9"

[its me]

Originally Posted by _paralyzed_

2.2"x1.9"

Thanks man!! I can start on the speed control trays now!

[_paralyzed_]

I didn't feel like reading through the thread and don't know if this has been mentioned yet. You are going to want to run the batteries and esc's in parallel, so they see the exact same voltage. It will also require pulling the red bec wire from one esc reciever connection, so only one esc feeds the reciever power. Might wanna make the front top plate bigger to hold a steering servo. If you knew all this nevermind, I just want to see it run!

[its me]

Originally Posted by _paralyzed_

I didn't feel like reading through the thread and don't know if this has been mentioned yet. You are going to want to run the batteries and esc's in parallel, so they see the exact same voltage. It will also require pulling the red bec wire from one esc reciever connection, so only one esc feeds the reciever power. Might wanna make the front top plate bigger to hold a steering servo. If you knew all this nevermind, I just want to see it run!

Good info and thank you, I am a absolute noob when it come to electric. The steering servo will actually end up under the top plate, so that whole area is good to go for electronics only :)

[mriccucci]

Ok so i got my top plate fabed up, and the 8ight shocks came in yesterday. Body will be here today sometime, deciding on a color scheme for it.





Im going to need to do some R&D on the shock oil and springs, these things are a whole new ball game.

[SnoopMaxx]

This is one of the the single motor mount
Electric Motor Mount HB Stadium 10

And the twin motor mount is from an E-Maxx 3906
Traxxas Motor Plate E-Maxx

Traxxas Motor Plate Custom E-Maxx

Trinity Motor Mounting Plate E-Maxx

[Emaxx_Quebec]

With the agreement of “IT’S Me“ I post my step by step process to make this mod.

1: It will be cheaper if you have already:
- Center dog bone.
- 4 old and unused drive shafts. (replace 1/8 diff output shaft )

2: It cost me (include shipping cost to Canada):

- 2 x LST 2 diff = $43 us ( 43/13)
- 4 x 1/8 diff output shaft + 2 x Drive cup - 8mm bore for 1/8 diff = $50 us
- 1 Dog Bone center kit from Kershaw = $ 55
- Bow ½ pvc (Fem to Fem) + 1” join = $0.50

First, I cleaned the diffs and put Gorilla Swat in it and change the 4 diffs output.


When I put them back together and tighten the ring to the cup, it was impossible to turn the diff by hands.



I noticed that the RC monster output was a little bit too long so I had to shave them to the appropriate length. Once shaved the diffs output, it worked perfectly!!

[Emaxx_Quebec]

Next, plastic trimming can get started. It’s better to do it slowly to not take too much material at a time. I used this dremel bit to do all the work.


I hope the pictures talk by themselves.
A lot of small adjustments is needed to achieve a perfect fit.

[Emaxx_Quebec]

Then I had to shave the drive shafts a little bit too. After that, it was A LOT easier to install the pins.



finished with RCM 8mm Drive cup - Kershaw dog bone



I have a Ofne 51t mod1 spur 20t pinion with Bidpruduct 36/74 8xl 2075KV Motor with 43/13 diff ratio,
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1.7222222222222223
Other Ratio: 1
Spur Tooth Count: 51
Pinion Tooth Count: 20
Total Voltage: 14.8
Motor KV: 2083
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0
Motor Current Draw: 83
Motor coil Ω: 0.0084
Spur/Pinion Ratio: 2.55 : 1
Total Ratio: 14.52628 : 1
Tire Circumference (inches): 18.22 inches (462.82 mm)
Total Motor Speed: 29376.13 RPM
Vehicle Speed: 34.89 mph (56.05 km/h)
Effective KV Value: 1984.87
KT constant: 0.65 oz-in/A
Motor Torque: 0.28 ft-lbs
Final Torque: 4.08 ft-lbs
Final Power: 1228.4 watts (1.6 HP)


ps: I'm french speaking so my english is not perfect.

[SnoopMaxx]

That looks very good I am definitely doing that when my stock 3906 diff gives up