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Sun Visor

When the lower camera looks up into the nozzl tip, the sides of the camera image pick up parts of the room's ceiling. This is particularly bad if there happens to be a fluorecent ceiling light. It will keep the machine from recognizing the nozzle tip and from aligning correctly.

A simple sun visor from black plastic, glued on with crazy glue, resolved the issue in seconds. Yay!

The little line between the visor and the case is a piece of black wire, for optics and stability.