This is my version of the useless box. I was searching the net for a rigid one and one that my things could fit in, to print. But there was no one. So i drew this one in fusion360 having in mind that it would be easy to print and easy to build. I use a standard size modded servo (futaba FP-S148) here is a good instructables http://www.instructables.com/id/Remove-a-Servo-Controller/ A micro switch http://www.ebay.com/itm/10-pc-TEMCo-Micro-Limit-Switch-Lever-Arm-Subminiature-SPDT-Snap-Action-LOT-/281353659655?hash=item4181fc2507:g:xcgAAMXQ9otTj4uW A micro toggle switch 2 pole on/on and a 4 AA battery holder you need a bunch of M3 bolts and some M4 nuts and bolts. https://www.youtube.com/watch?v=-TG3i88PaUQ I'm making a video of how to put it together. but it will take a while. ;-) Print Settings Printer Brand: RepRap Printer: mono mendel Rafts: No Supports: No Resolution: 0,25 Infill: 20% Notes: 3 perimeters top/bottom 1.4-2 mm depending on your layerhight.