So i built "the puck" today but with a 510, and its not working. Im not sure if its cuz i followed the tut for a 901 but its not workin, ive rewalked my steps, made sure the wiring was right and all. Im using a 510 to 510 extender with the postive wire on the middle post, and the black wire on the outside, maybe one of yall or the creator can help me out. plz and thanks