Movable YingYang Taichi symbol - with inserts and print in place base

Description

This is a fun quick toy that shows again why you should calibrate to print FDM on a mirror without glue. The objects are designed to print in place without any supports. Once printed, if your printer is reasonably well tuned, there are three rotating parts within the base. One for the main symbol and the other two are for the small Yin Yang circles. To print the base, you have to ensure it is placed flat on the bed and when printer, you have to give a few firm push to detach any strings or stuff left over and the parts should be able to rotate. The spacing between movable parts are 0.6mm so this is should work for most printers. I had an earlier 0.4mm version that also worked but required a bit of a knock from a hammer which I didn't want,. Choose a color for the base that will make the two colors stand out. I used MG Chemicals Copper colored PLA because I knew I was going to use red and glow-in-dark white. Then you have to print the yin yang flow and the inner circle twice, in your two favorite contrasting colors. Normally taichi diagrams are black and white, I chose eSun fire engine red and some CCTREE glow-in-dark blue filament that looks white normally (yes this will rapidly wear down bronze nozzles, but I replace a nozzle every 2 months). The emphasis again is on printing onto a flat mirror with no glue --- this gives the best smooth surface for FDM that surpass even SLA resin printing. I printed all in 0.3mm to save time, but the base would look better in 0.2mm. There is also 1 5mm hex plug that you can use to cover the hole in the base if you choose to hang this on a wall. This hex plug trim can be removed with a small flat head screwdriver.

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