Traxxas Summit Tranny in a 1/5 scale build

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twissted

Well-Known Member
Messages
543
Location
Omak Washington
So what you will be seeing is the first build that has been posted of the RC4WD Untimate Toyota 1/5 Axles installed on a custom built Scorpion MK1 that should look very scale when it's done.
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so these are the specs that this build will have:
Traxxas Summit transmission with Leading Edge Dog Carrier installed
Carbon fiber, Aluminum and plastic chassis
1/5 scale axles by RC4WD
1/5 scale beadlock wheels
RC4wd 40 series tires/Pitbull XL tires also
2005 Nylint Body 1/6 scale
Water Proof brushless steering sero by Alturn USA
Led lights front and rear
Servo powered winch
Losi XXL shocks
Brushless motor
Water proof esc

The Kyosho axles just don't look scale! So that said I dropped $513.00 on the Ultimate 1/5 Toyota axles.
5th%20axles_zpsji76klxy.jpg
Specifications:
Front and Rear Axle
CNC Machined
Billet Aluminum
Gear Ratio: 2.53:1
Hardened Steel Spool Gear (Helical)
8mm Axle Output Shaft
Heavy Duty Differential
XVD (Xtreme Velocity Drive) Axle
Full Ball Bearings
Designed for 1:5 Scale Truck
Output Shaft Length: 0.43in / 11mm
Output Shaft OD: 0.31in / 8mm
Total Width: 15.74in / 400mm
Hex to Hex Width: 14.44in / 367mm
Pin to Pin Width: 14.72in / 374mm
Pumpkin Height: 2.83in / 72mm
Leaf Mount Width: 6.33in / 161mm
Hex Thickness: 0.51in / 13mm
24mm Steel Wheel Hex
Weight: 76.57oz / 2171.5g

Here is some of the work that has been done up till now.
I have 2 of these bodies. So have 2 or 3 ways to go with the builds so I my change the chassis a few times to get the performance that I'm wanting form these builds.
I installed Led lights and cut the crap off the bottom that I feel I will not need.
scorpion%20MK1%20001_zpspqsfqeey.jpgscorpion%20MK1%20002_zpsqdwp6lv6.jpgscorpion%20MK1%20004_zpsaut7ifsq.jpgscorpion%20MK1%20003_zpsgknsis7r.jpg
 
(((((JEEP EATER GREEN)))))

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I pulled the body off of my Custom built buggy that uses a 17.5'' wheelbase. It uses a Summit tranny that has the LEM dog carrier installed in it. I also stretched a Losi LST2 chassis using carbon fiber to get the Summit tranny to work.
That is the 2nd Idea that I was thinking of. The first is to use a stretched Traxxas Revo 3.3 chassis using Losi XXL diffs. This would give me the flex that the real Scorpion MK1 has.


Scorpiom%20MK1%20001_zpscnqgy6ip.jpgCAM00292_zpsawxmvkpo.jpg

I surprised that the Yeti guys haven't tried this body yet!
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Use rc4wd 1/5 scale axles and use a Summit tranny and motor mount to make this build happen.
Specs on axles:
Specifications:
Front and Rear Axle
CNC Machined
Billet Aluminum
Gear Ratio: 2.53:1
Hardened Steel Spool Gear (Helical)
8mm Axle Output Shaft
Heavy Duty Differential
XVD (Xtreme Velocity Drive) Axle
Full Ball Bearings
Designed for 1:5 Scale Truck
Output Shaft Length: 0.43in / 11mm
Output Shaft OD: 0.31in / 8mm
Total Width: 15.74in / 400mm
Hex to Hex Width: 14.44in / 367mm
Pin to Pin Width: 14.72in / 374mm
Pumpkin Height: 2.83in / 72mm
Leaf Mount Width: 6.33in / 161mm
Hex Thickness: 0.51in / 13mm
24mm Steel Wheel Hex
Weight: 76.57oz / 2171.5g
5th%20axles_zpsji76klxy.jpg
 
jk%20build%20007_zpszdunh87i.jpgjk%20build%20009_zps1t0elaql.jpgjk%20build%20010_zpsphblzziz.jpgjk%20build%20011_zpsl4cnwhna.jpg

The bodies are just sitting on the chassis. The Jeep is on a 16" wheel base and the Scorpion is on a 17.5''. The solid axle build will be a 17.5'' wheelbase also.
 
I already have a 1/6 MOA Jeep. So I don't want to go down that road.

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So I cut the chassis plate and some side rails that will be used. the front will house the steering servo and hold the lipos so the weight will be forward and low as possible.
I love the extra room in the center. Makes doing this much easer.

001_zpsofpys57c.jpgjk%20jeep%20004_zpsvqfhyxhk.jpgjk%20jeep%20003_zpsgzggc0ni.jpgjk%20jeep%20002_zpsnpcbycbo.jpg

So lets talk about servo's. Here is what I ordered.
Alturn%203713%20servos_zpsnslzsgyf.jpg
Weight: 68grams / 1.87oz without splined horn
Dimensions: 39.5 x 21.0 x 37.0 mm
(1.58 x 0.81 x 1.51 inch)
Torque At 6.0V:
24.8 kg/cm , 359oz/in
Speed At 6.0V: 0.17sec / 60 deg at no load
Torque At 7.4V:
28.5 kg/cm , 412 oz/in
Speed At 7.4V: 0.14 sec / 60 deg at no load
Torque At 8.4V:
37.2 kg/cm , 482 oz/in
Speed At 8.4V: 0.13 sec / 60 deg at no load
Motor Type: Japan Brushless motor
Potentiometer Type
4 Slider/indirect drive
Amplifier Type 6A Treble Power MOS-FET
Wire Info (Black) - Negative
Wire Info (Red) + Positive
Wire Info (White) S Single
Titanium gears
Water proof

I will be running at 7.4v on all the servos. Here is the micro servo that will shift the transmission.

ADS-330HTG+Full HV / Alloy Case Digital Torque/Speed Micro CCPM Servo (Titanium alloy gear)
Weight:
18.4 grams / 0.56 oz. without splined horn
Dimensions:
24.5 x 12 x 22mm
(0.99 x 0.50 x 0.91 inch)
Torque At 4.8V:
2.4kg/cm , 26 oz/in
Speed At 4.8V: 0.12 sec / 60° at no load
Torque At 6.0V:
3.0kg/cm , 30 oz/in
Speed At 6.0V: 0.10 sec / 60° at no load
Torque At 7.4V:
4.2kg/cm , 39 oz/in
Speed At 7.4V: 0.08 sec / 60° at no load
Motor Type: Japan Coreless motor
Potentiometer Type
4 Slider/indirect drive
Amplifier Type 5A Double MOS-FET
Wire Info (Black) - Negative
Wire Info (Red) + Positive
Wire Info (White) S Single

So the chassis will look like this with the carbon fiber bolted to it. This will help keep everything nice and concealed and easy to get at. It is one of the features about this body that is so appealing to me.

s-l1600%206_zpsjb32q901.jpg 003_zpsrhixkdkw.jpg002_zpsest23v89.jpg001_zpsvi2tt9wm.jpg

Some paint and interior work was done. The steering wheel was changed out to a better looking one that is more to scale and if you look close you can tell where I got it from.

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The plastic chassis will be beefed up using Aluminum and carbon fiber. After it is bolted and glued in place it should be very strong and fairly light weight.

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Look what I found! they may be what I need and the cost is better also.

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Specifications:

CNC Machined Aluminum
8mm Axle Output Shaft
Integrated Servo Mount
Multiple Adjustment for Shock and Lower Link Mounting
Gear Diff Set 43T
Bevel Pinion Gear 13T
Includes XVD Axles
Steering Angle: 30 Degrees
Total Width: 12.9in / 328mm
Hex to Hex Width: 11.5in / 292mm
Pin to Pin Width: 11.1in / 283.5mm
Pumpkin Height: 2.41in / 61.2mm
14mm Steel Wheel Hex
Gear Ratio: 3.3:1
Weight: 21.6oz / 615g
 
So since I have to use the Mad Force axles I though I would set up the diff to triangulate as it should have been done by Kyosho be now. But that's of it's easy to do with. the right tools

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So here are some new links for the front end being made. I would have them done if I hadn't bought the wrong sized band-saw blade!

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