Dump Truck 8x8


That's my new MOC. It's a Dump truck 8x8. The scale is about 1:11.

It was inspired by the Iveco Trakker (more than anything else to derive the dimensions), but the front grid ended to be more a beheaded batman logo.

It's 8 wheels drive, moved by 4XL Motors connected to the wheels via a driveline, it has a differential per axle. 2 XL Motors drive the 1st and the 2nd axle and the other 2 drive the 3rd and 4th axles.
This allow to have a virtual central diff and stress a bit less the drivetrain since the torque is splitted. A fake 6-inline engine is connected to the driveline of the 1st and 2nd axles.

The 1st and the 2nd are steering axles via 2 PF Servo motors (one for each axle), with different turning radius and working steering wheel.

The suspensions system consists in 4 live axles. Shock absorbers for the 1st and 2nd axles, with an anti-roll bar for the 1st axle, leaf springs for the 3rd and 4th.

The Pneumatic system consists in 2 small pump driven by an L motor, that provide compressed air for tilting the cab, elevate the bed and to an hypothetical trailer.

The lightening system consist in 4 PF Led, 2 in the front and 2 in the back for the headlights (and 2 extension wires). In the back there is a connector where is possible to connect lights of a trailer.

There is even a winch in the front moved by an L Motor.

It uses 2 SBrick that control everything, with the exeption of tilting the cab and providing compressed air to the trailer, that are actuated manually.

It has openable doors (manually) that allow access to detailed interiors of the cab and it has a trailer coupling.

The truck itself is built to be a base for several future MOC/MOD. In fact, tipping bed system a part, everything is contained in the chassis or in the side tanks.

Weight and dimensions:
Length: 93 studs (74.4 cm)
Width: 29 studs (23.2 cm) (without mirrors)
Height: 42 studs (33.6 cm) (without antennas)
Weight: 6 Kg

PF elements:

4 XL Motors for drive.
3 Servo Motors, 2 for steering and 1 for the tipping bed pneumatic valve.
2 L Motors, 1 for the pneumatic pump and 1 for the winch.
4 Led, 2 in the front and 2 in the back.
2 Li-Po battery.
2 SBrick.
4 20cm extension cables.
1 50cm extension cables.

Pneumatic elements:

3 new long pneumatic cylinders
2 new small pneumatic pumps
3 pneumatic valves