They’re great for smaller projects and for hacking on the go! Video after the break.Ĭontinue reading “PCB Hotplate Has Integrated Heating Element Traces” → Posted in Tool Hacks Tagged hotplate, reflow, reflow soldering, solder, soldering We’ve seen other tiny hotplate builds before, too. Version 2 is intended to include a better temperature sensor and a OLED screen for displaying the current temperature to the user. However, in the initial design, this feature didn’t quite work properly. The board is intended to self-regulate, with an ATtiny13 onboard and a thermistor to measure temperature. Higher voltages can push that figure higher. Running off a 12 volt supply, the mini hotplate is capable of reaching a maximum temperature of 214☌. The full coil trace has a resistance of 1.9 ohms, and passing electricity through it generates plenty of heat. To achieve that, designed a board with a thick coil trace that acts as a heating element. The idea was to create a compact hotplate for easily reflowing small PCBs. In this build from, though, the PCB itself is the hotplate! Normally when we talk about PCBs and hotplates, we’re talking about reflowing solder.
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