Jennifer Clark's JCB JS220 Track Excavator

Now you can build the ultimate LEGO pneumatic model, the JCB JS220 tracked excavator designed by Jennifer Clark. This model has almost 1700 parts and features 13 pneumatic actuators and pumps, 5 motors, and all the functions you'd expect from a scale model of the real thing:

  • Pneumatic bucket
  • Pneumatic dipper
  • Pneumatic boom
  • Motorized skid steer tracked drive
  • Motorized slew
  • Controller Works just like the Real Excavator

Electrical power for slew, drive, and differential track based steering. Boom, dipper and bucket are pneumatically powered, with all functions operated by a tethered remote controller that includes a four cylinder reciprocating pneumatic pump.



Full instruction Download $20

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No corner was cut in the creation of the instructions prepared by Eric Albrecht (blakbird). The 164 pages include a 40 page technical introduction describing the features of the model and comparing them to the function of the real excavator. This fully illustrated section should tell you everything you want to know about the JS220 and about the way the model was designed to simulate it. The instructions themselves are 500+ steps rendered at 600 dpi so that they are suitable for high quality printing. All electrical and pneumatic connections are shown in detail.


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JS220 Parts






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