Just a simple bracket to hold the common flip-type power switch.Print a bracket (if you want it for other side - don't forget to mirror it). Print one or two of Circuitboard_bracket_m3_diag standard Mendel part: http://reprap.org/wiki/File:Circuitboard_bracket_m3_diag.png I decided to use it because I already had some spare parts.Take a switch (I took mine from my broken table lamp), put it into a hole and glue it. I used the glue gun to do this.Hang the bracket on the sloped threaded rod (see picture). Fix the bracket using the Circuitboard_bracket, M3 bolts, washers and nuts. If you want to hold the power cable (I recommend to do so), put another one Circuitboard_bracket on the front side and squeeze the cable between brackets. Tighten the bolts.Connect power cables to the switch.Enjoy.