Print both parts and use a small screw (or glue) to attach the parts to each other. I used 12mm long screws of 3mm thickness.The QI charger I used is a 6.9cm round puck purchased a while ago from Amazon (http://www.amazon.de/dp/B00FEAGVWM)It is currently available on DealExtreme: http://www.dx.com/p/291589?Utm_rid=99937920&Utm_source=affiliate