This bracket takes 2 Hitec HS-55 sub micro servos and joins them into an axis aligned pan tilt bracket. A laser model can be attached to one side for a programmable pointer. The other servo fits in the base. This bracket attaches nicely to any tripod mount with a slot to fit a 1/4" 20 hex nut.
Designed largely by Paolo Salvagione for my project: Being the Machine: http://www.instructables.com/id/Become-Your-Own-3D-Printer/

Made with an Objet printer in Vero Clear. Assembly instructions available on: http://www.instructables.com/id/Become-Your-Own-3D-Printer/