230v heatbed thermal runaway
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@th0mpy I agree. This is the one that I use:
https://www.filafarm.de/en/products/solid-state-relais-1?variant=17214068163They also have the heatsink to match.
No fun burning down the house ... I have a heater mat with a built in thermostat and also an external temp fuse plus dual thermistors.
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@gixxerfast said in 230v heatbed thermal runaway:
No fun burning down the house...
A thermal fuse can be another safety measure. Nero3DP has a video on youtube demonstrating how he builds a mains bed with a silicon pad, thermal fuse, and high temp silicon adhesive. On my own printer I have two 115C thermal fuses in series. I also have a mains relay that is connected to the duet's PS ON output such that if the duet thinks something is funny, it turns off power to bed and 24V DC/DC.
Keeping the house intact is very important because it protect the 3D printer from the elements.
