Just a quick note to say that I've updated all the instructions to GeoCrawlers 1-5 (and changed the numbering, so they now start with the Lego UAV). Some changed a little, and some changed a lot, but all reflect improvements and lessons learned since the original designs. If you're building any of these, check the instructions again. Also, we have a site redesign coming, so if you have any suggestions for additions or subtractions, now's the time (in the comments, please)
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