Instructables

Cardboard Torch

Step 2: Roll the Cardboard

Picture of Roll the Cardboard
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Roll the cardboard so that the corrugation is parallel to the direction of the roll. (this will augment air flow)
Leave slightly less than one inch of space in the center, and roll tightly around that. For best results, there should be about 5-7 layers of wrapped cardboard.
 
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