Sand Spirograph (improved handle) by burton15 3d model
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Sand Spirograph (improved handle) by burton15

Sand Spirograph (improved handle) by burton15

by Thingiverse
Last crawled date: 3 years ago
Gradually making improvements to my previous design (Sand Spirograph) after testing it. This model has an added handle on the guide for the sand spirograph, which makes it easier to spin the tracing gear with increased friction caused by water and sand between the sliding surfaces.
This sand spirograph can be used to trace roulette curves onto flat and sandy surfaces. It does this by tracing a pin through the sand. A guide wheel is used to support the tracing gear so that it remains level and suspended above the sand while still allowing the gear to rotate.
Future improvements on my to-do list:
Create various tracing gear sizes for tracing different curves.

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