Hot Surface Indicator
thingiverse
I designed this Hot Surface Indicator (40x40mm) because I wanted a clear visual check to ensure the heating bed is functioning properly right from the start. It displays green below 30°C, while turning yellow above 30°C. To print it, you'll need color-changing filament - I use AIO Robotics' filament myself - and access to a 3D printer. You can view some videos of this project on my Instagram profile here: https://www.instagram.com/mat3d_prints/ If you're interested in purchasing the color-changing filament used for this project, check out AIO Robotics on Amazon at https://www.amazon.de/AIO-Robotics-AIOTEMPGREENTOYELLOW-Farbwechsel-Temperaturveränderung/dp/B01LY0NAE1/ref=sr_1_13?s=industrial&ie=UTF8&qid=1544869096&sr=1-13&keywords=aio+robotics+filament
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