Ohm's Law / Joule's Power Law Pyramid (Tetrahedron)
thingiverse
Ohm's Law / Joule's Power Law Pyramid, technically a tetrahedron. Put your finger over what you're trying to find, the remaining variables make up the formula. Reference this link for an overview of this process: https://www.electronics-tutorials.ws/dccircuits/dcp_2.html This is also the source for the image. You can print it with 3 perimeters, 10% infill, 3 bottom layers and no top layers. Alternatively, you can also do it with only 2 perimeters if you're using fatter extrusion, approximately 0.7ish.
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