Step 1: back frame

Step 2: front frame

Step 3: rod of mechamism

Step 4: back frame + rod

Step 5: back frame + mechamism

Step 6: adding the front frame

Step 7: connecting rod

Step 8: lower frame

This module is finished. if it doesn't work corectly you have to move the two white rods in ore out.

Step 9: putting the modules together

Put the modules like this together.

Step 10: head

Step 11: Tail

Step 12: finishing statment

You've just build a new kind of switch! If you have any problems be free to ask.