Sand Spirograph (improved handle)
thingiverse
Making incremental advancements to the upgraded design of my Sand Spirograph after conducting thorough testing sessions. A notable addition is the ergonomic handle situated alongside the guide, effectively mitigating difficulties in rotating the tracing gear as water and sand interfere with sliding surfaces, inducing friction. Utilizing this clever tool allows for precise tracing of roulette curves onto flat sandy terrain, facilitated by the movement of a pinpoint through the sandy medium. A sturdy support wheel functions as a guide to maintain equilibrium while the gear remains suspended above the sand, yet still enables it to spin smoothly.
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