Thingiverse
PCB Heatbead for Home Etching
door triffid_hunter
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I saw prusa's excellent heated bed, but the dimension was too large for the blank stock I had available, and there were too many narrow traces for an easy home etch, so I designed a different one.
Dimensions are 200x200mm, hole centers are 190mm apart.
Design resistance is 0.95 ohms. Etch from 1oz (36um) copper to get this resistance.
Gives 150w from a 12v source, and consumes 12.5A.
I've had my bed up to 140°C before, and didn't want to take it higher for fear of cracking my glass or damaging the FR4 PCB material.
Dimensions are 200x200mm, hole centers are 190mm apart.
Design resistance is 0.95 ohms. Etch from 1oz (36um) copper to get this resistance.
Gives 150w from a 12v source, and consumes 12.5A.
I've had my bed up to 140°C before, and didn't want to take it higher for fear of cracking my glass or damaging the FR4 PCB material.
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