Pencil Case With A Twist

cults3d

https://youtu.be/Ms1TK1qV0tI I've been using mine for nearly three years now, and it still looks virtually new. To build this 3D print, you'll need three additional components besides the print itself: A steel ball with a diameter of 6mm A steel spring measuring 10mm in length and 5mm in outer diameter Super glue Updated "inner piece" on November 30, 2019: I've deepened the holes to minimize wear and tear on the mechanism. To assemble the spring mechanism, apply super glue to hold it securely inside the hole. This will prevent the spring from shooting out when the case is disassembled. The logo should fit snugly into place and be retained by friction alone. If this doesn't work as expected, you can use a version with a slightly larger tolerance and secure it using super glue.