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Manual model with motorized functions and automatic pallet fork leveling.
About this creation

This is my most complicated model yet, and the development history started back in January, 2013. This model was always the too-complicated one that was cast aside for other models (mainly much simpler cars).

This is a manual model with motorized functions.

-boom elevation
-boom extension (1 section)
-pallet fork elevation
-automatic pallet fork leveling (the fork stays in level during boom elevation/extension)
-pendular rear suspension
-3 steering modes: 4-wheel, normal and crab (based on the ingenious system by Barman)
-working steering wheel and HOG
-opening doors
-no fake driveline or engine

The functions are powered with three L-motors, two of which are powering the elevation.
There is a gearbox for two operation modes: boom elevation+extension and outriggers+fork elevation.

The functions can be operated with two PF pole reversers.

The fork leveling is simply solved by connecting the fork drivetrain and the boom elevation drivetrain with a proper gear ratio. The leveling is always driven by the motors. This also means that the boom elevation and the fork angle can be independently moved in only two gearbox states. This doesn't reduce playability, since due to the auto leveling, one hardly has to adjust the fork angle.

The maximum angle and length of the boom is quite limited (the above picture shows the maximum angle and length), probably the motors and linear actuators could handle a bit more, but this would require quite some redesign (gearbox for proper auto-levelling, mounting points of the LA, etc).

The model is built from about 2100 parts.

Video and LDD file is on the way.
More pictures here:


 I like it 
  June 20, 2016
Well done! The aesthetic with the functionality is excellent. My hat's off to you!
By Máté Lipkovics
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Added June 19, 2016
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LEGO models my own creation MOCpages toys shop Telehandler

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