Wooowie… Almost done with my DIY midi controller! Only soldering all the wires and attaching a panel mount type B tot the case left. The mainboard is a teensy and will be running my own arduino code. When I finish the build,  I’ll publish the source, stl’s, scematics,  BOM and full 4 deck Traktor mapping here on my blog! De box is made from an old IKEA bunk bed. The top panel is made from old IKEA flooring. Note to self, next version: laser cut everything!