[Bongle]

We actually considered mounting a 20-watt halogen bulb inside a parabolic flashlight housing to point at the floor to make it clearer to our driver where the robot had to be in order to pick up a tube. You'd drive until the near side of the tube was illuminated by the light patch, then you'd know that it was time to pick it up.

The inspectors said that it was ok so long as it was pointed sharply downwards (it would've been) and we got the thing built, but because of a change in arm geometry, we lost our place to mount it and would've had to mount it very low, making the resulting patch of light too big and diffuse.

Some people may have seen us building and testing it at waterloo, it was ludicrously bright.