This is a 6DOF headtracking clip i made for use with Freetrack. It uses the default settings for a 3 point clip in freetrack. For people unknow to headtracking. This LED clip is used in combination with a Wiimote or a webcam. A piece of software translates your headmovement into motion in games. For example, if i look right my view will pan to the right in my flight sim. The software can be downloaded here http://www.free-track.net/english/ For best result use a Wiimote since the infrared camera in the Wiimote is pretty good.I printed it 100% infill at 0.1mm layer height. For assembling the wires and the infrared LED's I made the clip in 2 halfs. This way you can use super glue to glue the LED's in place and glue the wires to the frame. Then glue the 2 parts together. For powering the LED's i used a standard 3 LED bicycle light.