by IonEwe, published
based on a napikin holder i saw and Lissajous curves: http://en.wikipedia.org/wiki/Lissajous_curve
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Depending on your printer you may need a raft or supports. The contact patch on the plate is small. infill on sinecrown4r1 might need to be as much as 75% due to thin walls on the mid section or use sinecrown4r3 which is thicker. sinecrown3r2 has small support to improve stablity.