Magnetic Dice Box

Inspired by the hexagonal dice box by Nerys, I wanted a dice box that both top and bottom were identical, and which would stack with other dice. I settled on using 5mm sphere magnets. There are 3 pockets toward the bottom and six pockets toward the top of the the part. I modify the gcode by adding the M600 command before layer 33 and layer 67 (0.2mm layer height) to do a filament swap. This pauses the printer, removes the filament from the hot end, and waits for me to drop magnets in, and resume the print. Sample Gcode uploaded that I use.
*note, gcode ran on cr-10 with direct drive extruder. Part placed on front left corner of bed (closest to origin). Should work on most Cartesian FDM 3D printers.