The guide for the lever, made from several layers of transparent, 3mm acrylic glass. Note the irregular indents on the lower side. Here is where the ball bearing of the plunger rolls along. Since the plunger is spring loaded, there is clear tactile feedbeck when the top of the ball bearing sinks into any of the indents.
The two claw-shaped spaces will later hold microswitches that sense when the lever has reached its max. or min. position.
Three Spider LEDs are already glued into the openings in the upper part of the guide.