K40 laser cutter interlock cover and block

I added a cover interlock to my Chinese made K40 laser cutter. I have the style that has a cover prop built in. I used a RadioShack SPDT Switch with roller lever for the interlock switch and mounted it to the side of the cutter with double sided tape. The switch is wired in series with the flow monitoring switch I added to the system. The cover and the activation block are both mounted with double sided tape.