Dick what did you get? I was looking into this myself, but I guess one really needs to take some measurements of the switch in order to get one that will work. I found many micro switches, but didn't have measurements of mine so I didn't order anything. Kind of waiting to have to fiddle with mine again and going to take some measurements of it.
A Series machine purchased in 2007
had 30 minutes running time up till 2-13-15
Ring Neck Blues DC Insert (outstanding job keeping machine clean!), HF DC blower
Designer 3.102, Pattern Editor, Pattern Sculptor, STL Importer, Scanning Probe, 2D Vector Drawing Suite, 3D Pattern Modeling Suite, Centerline text, Conforming Vectors, CarveTight Chuck, Decorative Bit set
Universal Laser ILS series laser engraver with dual laser cartridges 135 watts total with 24" x 48" table and Class 4 module