Heat warning sign
thingiverse
Just a simple heat warning sign which can be put on hot surfaces e.g. hot plates or any other heater to get a visual indicator for the temperature. Print in color changing filament like: https://www.amazon.com/Changing-Temperature-Filament-Dimensional-CC3D/dp/B074T8TGL5 Do NOT use over 70 degree Celsius. Enjoy.
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