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[Zerobricks]

So I'm faced with two problems. I want to have great grippy tires and i'm a crazy purist. So what i do? I get some green outdoor challenger wheels. Now every mode built was very hard to use with these wheels, as they require complex gearing and bearing system and strong motors. So I decided to use NXT motors this time. But to power NXT motors I needed something stronger than the usual Power Functions. So i once again used the RC unit with a combination of NXT converter cables.

Here's the result:

There is one NXT motor to power front and two NXT motors to power the rear wheels.

The rear motors are placed in trailing type suspension (a first in my trucks.

Each wheels has internal 1:3 planetary gear ratio. This means the total gear ratio is..... Yep only 1:3.

So you must be asking, why did you use only one motor in front and two at the rear? Well in real world the rear does most of the work, so it seemed logically to use them there.

And the steering? I used the RC motor's steering output, which is close and powerfull enough to steer the wheels. Bad side is that there is no front suspension, but the flexible rear amkes up for it.

Look from underside.... No fancy visible gears here

And a video:

So in short... Keep it simple and it works! And to a question is this is better than panther? Its more grippy, but panther is 5x faster, so i love them both

[DLuders]

@ Zblj: You certainly are innovative in using those Lego elements! I have built your HyperTruck (which is a blast to drive), so it's hard to improve upon that one. Your Panther (pictured below) is also excellent, but I have not yet built it!

[timslegos]

Looks like it drives really well. Do the gears inside the hubs move out of place and come loose since nothing is holding them back?

tim

[Zerobricks]

Gears inside the hubs cannot move away, as the turntables keep them in place. No room for them to go anything.

[tibivi]

Very well done again!

You can (With the NXT)program the motors for speed,

what speed have they when connected to the RC unit?

Tibivi

[kieran]

will be full power, 9V so fast

[Zerobricks]

Very well done again!

You can (With the NXT)program the motors for speed,

what speed have they when connected to the RC unit?

Tibivi

RC unit has 3 speeds, it works nice.

[SNIPE]

Hi, Can you a pic of the tires themselves not on the rims and those wheel adapters?

Edited July 12, 2012 by SNIPE

[DLuders]

@ SNIPE: There are four components of the 47349c04 "Wheel 72 x 34, with Lime Tire 72 x 34 Balloon Offset Tread" . Here is the naked 47345 "Tire 72 x 34 Balloon Offset Tread" (without its green color) and the wheel components shown on this list:

Zblj's technique for attaching these wheels is best shown on this Lego Digital Designer .lxf render of his HyperBeast:

Edited July 12, 2012 by DLuders

[Zerobricks]

Yes, but this truck uses different mountaing made out of plates squeezed in the turntable, which is stronger!