dhc6twinotter

Komatsu 840 Forwarder by Jonas/JH-Create

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Hey all,

While browsing youtube, I ran across this fantastic Komatsu 840 Forwarder built by Jonas/JH-Create:

IMG_6311%25255B1%25255D.jpg

Objectives

  • Authentic proportions
  • Mechanical crane (not pneumatic)
  • 100 % remote controlled
  • Joystick controlled
  • Strong enough to actully load and carry small logs in the forest

Video at the end of the post.

Functionality

  • Forward / reverse with 8WD
  • Articulated steering
  • Rotating hitch – Independent tractor and trailer
  • Locking mechanism for rotating hitch
  • Working bogie axes
  • Boom Slew
  • Boom up/down
  • Jib up/down
  • Grapple open/close
  • Grapple rotate
  • Fake 4 cylinder engine

Datasheet

  • Propulsion: 2x PF XL motor connected to a common drive train
  • Steering: Frame steering by two small linear actuators powered by a PF M motor
  • Hitch lock mechanism: Micro motor
    Boom
    • Slew: Large turntable turned by PF M moto
    • Up/down: LA powered by PF M moto
    • Jib up/down: LA powered by PF M motor

    [*]Grapple

    • Open/close: Wormgear driven by PF M motor
    • Rotate: Micro motor

More info on his blog: http://www.jh-create...-forwarder.html

He has some other nice mocs on his blog as well, but I really liked the forwarder. :thumbup:

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That's a nice find, Daniel! Maybe The Lego Group can make something like this as a future Technic set.... :wink:

IMG_4967-edit4_thumb.jpg?imgmax=800

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Personally I would prefer something like this instead of yet a new truck.

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That's a nice find, Daniel! Maybe The Lego Group can make something like this as a future Technic set.... :wink:

I would love to see LEGO build a Forwarder. I think a remote control forwarder could totally be doable for LEGO. 6 functions would cover the basics, and a gearbox similar to 8043 could be used. It would have the same number of PF components as the excavator. 8 functions would be more realistic, but I'm not sure LEGO would go that far. Even if LEGO were to build a pneumatic version, it would be fantastic as well.

If I were fortunate enough to ever work for LEGO, this would be one of my first suggestions, along with a motor grader.

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I have always loved forest machinery. I should think about building a forwarder next.

tim

They are a neat piece of equipment and are fun to build as well. I started one about 1.5 years ago or so, but haven't worked on it for a very long time (I've been on the road for the past year and haven't built anything). I don't know that I'll ever finish it. This forwarder built by Jonas makes me want to begin work on mine again.

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