Dragon Egg Gyro – Fidget Keychain

Want to sell prints of this model? A commercial license is available on my Patreon: https://www.patreon.com/Elizabeth3D Like my free models? Support me on Ko-fi: https://ko-fi.com/elizabeth3d Dragon Egg Gyro is a print-in-place fidget keychain: three rainbow rings that spin in every direction around a scaly dragon egg. Design Concept Each ring is one color, red, yellow and green, with a purple dragon egg in the middle. There are no pins and no pivots: the rings are slices of nested spheres, printed flat and all at once, and each one stays inside the next because its opening is narrower than what it holds. Purpose A pocket fidget and a keychain. Spin the rings with a finger, flick the egg or hang it on your keys. What's in the Box - Outer ring with the key loop (red), 44 mm across and about 55 mm long with the loop. The hole of the loop is 7.6 mm.

- Middle ring (yellow) and inner ring (green).

- Dragon egg with big scales in relief (purple), about 21 mm across.

Print Settings - Printer: printed on a Creality SPARKX i7, 0.4 mm nozzle. Material: PLA. Layer height: 0.20 mm. All inside the 3MF, set with the Creality SPARKX i8 0.4 nozzle system profiles: just open it as a project

- Four colors on one plate, one piece per color: the color border is the gap between the pieces, nothing is painted. Slice the 3MF to see the print time and the filament of each color, purge included.

- No supports and no brim: both would weld the rings together. There is only about 0.5 mm between the pieces, so keep the first layer clean. Creality Print may warn about "floating regions": a few tiny spots under the egg's scales that join the egg on the next layer. It prints fine without supports, so ignore the warning and do not enable supports

- Do not scale it down: the 0.5 mm gaps are what keep the rings free

- No multicolor system? Import the four STL files together, they keep their positions, and print it in one color

Assembly None: it comes off the plate already linked. If a ring feels stuck at first, hold the outer ring and turn the inner ones gently until they break free.