8x8 Vehicle. Trial/Offroad/Crawler

[Essge]

Hi everyone.

I this is my tread for 8x8 project Im bout to start.

Im gonna use 4 Rc buggy motors for drive, M-motors for steering.

To power the rc motors I will use a 20-40Amp ESC. For steering I will hook some servos up to switches and connect M-motors to them.

I know some of you dont like this cause it is some kind of cheat. I have 2 rc-units, but no one of my transmitters are working. Then I use a 2.4Ghz radio from hobbyking.

I will not use original Lego tires, the grip sucks. I found out the Axial 1.9 Ripsaw tires fits the big grey and the big silver rim perfectly.

Suspension.

I want to have independent suspension. I could choose liveaxle if the idea is good too.

I was thinking about this suspension solution

But I dont quite know how Im gonna fit the drivetrain and fit it to the rest of the chassis.

I saw ZBLJ's amphibious 6x6 vehicle that he posted a few hours ago. He haa used something similar to this

I dont know what is the best, but I know the version on the pic is reliable. The u-joints could break.

I will update this later on.

I want to hear your opinion :)

Edited July 23, 2014 by Essge

[z3_2drive]

With that much power you might destroy the CV joints even in such a tight setup. Try it first, though. Good luck!

[Paul B Technic]

Good luck with it :)

[Essge]

You dont have any suggestions to the chassis?

[z3_2drive]

I have never built an 8x8, so I suggest you research some famous MOCs, there's plenty out there. Two level structure should be sturdy enough and I would first figure out the placement of the buggy motors and how they will be geared.

[Black-Build]

I have never built an 8x8, so I suggest you research some famous MOCs, there's plenty out there. Two level structure should be sturdy enough and I would first figure out the placement of the buggy motors and how they will be geared.

I agree.

[Zerobricks]

If you want to use indpendent suspension you can use either portal hubs, or you can also use a planetary gear ratio, which is a bit less efficient.

[Essge]

Its maybe safest to go for the portal hubs solution.

And something like this: