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LEGO Spot Micro

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Awww, isn't he cute? LEGO Spot Micro Ver 1
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The linkage approximated by Spot Micro Ver 2 (see below)

Spot Micro was developed using our interactive 4-bar walking linkage optimizer, which you can use to modify the linkage here, and below is a video of the simulator in action.

​Spot Micro uses the linkage dimensions shown in the image to the right, scaled so that the crank length (bar b1) equals 3 LEGO holes.

Some build pictures are at the bottom of this page.
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Spot Micro's linkage has a fairly consistent foot-speed, which makes it a good candidate for rotating the crank by driving the legs, as is done in the following treadmill video:

Version 2 below is slightly bigger to eventually accommodate motors and RC controllers:

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Spot Micro Ver 2 uses the linkage dimensions shown in the image on the right, scaled so that the crank (bar B1) equals 4. It differs from the GIF at the top by shortening the lower leg section (B4) by one LEGO hole so that the front/back feet don't collide when the crank is at 12 o'clock.
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The following video includes step-by-step instructions for building the smaller version 1:
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  • Home
  • Wanna Build This?
  • Walker ABC's
  • Build Instructions
    • TrotBot Builds >
      • TrotBot Linkage Plans
      • TrotBot's Legs Simplified
      • Quadruped TrotBot
      • Hexapod TrotBot
      • TrotBot
      • TrotBot, Ver 3
      • Mindstorms TrotBot, Ver 3
      • Wooden TrotBots by Automata Korea Design
      • 3D Printed TrotBot by Scott Anderson
      • Mindstorms TrotBot, Ver 2
      • Mindstorms TrotBot
      • Large-Scale TrotBot
    • Strider Builds >
      • Strider Linkage Plans
      • Strider Ver 3's Legs
      • Strider Ver 3's Frame
      • Mindstorms Strider Ver 3 Mod
      • Strider
      • Strider's Legs Simplified (ver 2's)
      • RC Strider
    • Mechanical Spider >
      • Klann Mechanical Spider - Climbing Mod
      • Klann's Spider, EV3 Long Legs
      • Klann High-Step Mod
      • Klann's Spider, Ver 2
      • Mindstorms Klann
      • Klann's Spider, Ver 1
      • Klann's Linkage Plans
    • Strandbeest
    • LEGO Spot Micro
    • Linkage Warm Ups >
      • Lever Paradox
      • LEGO Biters
      • LEGO Punchers (4 bar linkage warm-up)
      • LEGO Hopping Robot
    • Simplified Walkers by OECU's Mechatronics Dept
  • Customize
    • Strider Linkage Optimizer
    • Klann Linkage Optimizer
    • Strandbeest Optimizer for LEGO
    • TrotBot Optimizer
    • 4 Bar Linkage Optimizer
    • 4 Bar Walking Linkage
    • 6 Bar Walking Linkage
  • Linkage Simulation
    • Python Linkage Simulator
    • Scratch Linkage Simulator
  • Blog