BallInABox - A sphere trapped inside a cube - Prints in place

thingiverse

The cube is a precise 25mm on each side. A sphere with a diameter of 22.5mm takes center stage. Inside the sphere, a cavity measures 27.5mm in diameter. The holes drilled into the sides are 17.5mm in diameter. This model requires support from the buildplate at minimum, as the sphere does not rest on it. Adding full supports to hold up the vertical round holes would make this design look even better, assuming your support settings are spot-on. This fidget toy is a fun way to show off what a 3D printer can do and serves as a challenging test for your printer's vertical round holes and/or support settings. A sample picture of this model was printed in Inland Natural PLA using an Ender 3 with a layer height of .2mm. Update: On April 12, 2019, I successfully scaled down the cube to 6.25mm while still allowing the ball to move freely. This smaller version was printed at .12mm layer height in Inland Blue PETG and took approximately 12 minutes to complete using only *Touching Builtplate Only* supports. A new picture has been added.