Institute of ImaginationRobot LabRobot Lab

Step 4 of 6

Make a card flap

Tape the small card to the edge beside the battery square with brown paper tape. Carry the + strip onto the flap, to the spot that folds onto the square. Does the copper land on the square when you fold it?

A flap of card taped to the edge, folded open, with the plus strip carried onto it to the spot that folds onto the battery square