With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
Might one also use a piece of graphite rod of the kind used in mechanical pencils? Anyone know the resistance of a 0.5 mm HB pencil lead, per centimeter?
I just tried a measurement. 1 cm of 0.5mm HB rod had about 50 ohms, so it seems that one would need a very short piece, or a much wider rod, or a thin layer between 2 conductors.
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.