How to build and safely use a bridge tester

Because I described how my students and I used a bridge tester to prepare for scaling up our walking machine in my TrotBot post, I thought I should describe how to use a bridge tester safely, and how I built mine. Overview There are probably better, or simpler bridge testing methods for LEGO bridges than […]

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TrotBot Walking Machine

After teaching a challenge-based LEGO Engineering class for two years, I wanted to offer a really difficult challenge for a dozen of my most motivated students (grades 6-8). I settled on linkage-based walkers, like Theo Jansen’s Strandbeest. Rather than copy prototypes or plans, I had the class study various linkage mechanisms, their trade-offs, and how they can […]

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