Remixed from Generic Tool Holder by Physics_Dude, which can be found here: http://www.thingiverse.com/thing:14496 Changed the dimensions to fit Ultimaker 2 Added a larger hole for a glue stickAdded another hole for a hex key (3 in total) So it can hold: The glue stick and the hex key set that came with the Ultimaker 2 in addition to 2 tweezers and a caliper or a pair of scissorsLayer height: 0.2 mm Shell thickness: 0.8 mm Fill density: %20