3

The mains switch is easily replaced - the part is widely available. Just make sure that the spade connectors go on securely and to the same positions as the old one. Here's how the wires are connected in my Ender 3's mains input: The IEC mains connector is on the right in the first image. You can see the yellow wire goes to the earth connection of the PSU. ...


2

Any filament except made-to-be-conductive metal infused filaments should be capable of acting as a suitable insulator, but you'll also want to consider things like failure modes under overheating, mechanical damage, whether it might be subject to spills of conductive fluids, etc. These are not so much a matter of filament choice as structural design and ...


1

Turns out this is the behaviour of files that get corrupted. This has very little to do with the slicer and everything with how some SD cards are just intent on getting themselves a bad name. In this case, the file was corrupted enough not to be readable on the machine that put the data on there. If the file can't be opened and made look readable by a normal ...


1

My Ender 3 has the same connections on the power supply. As received from the factory, the machine runs off one set (mainboard, bed heat, hotend, and fans) and the other set is left open (I think they're connected inside the power supply). Given mine is a 300 W rated supply like yours, you should be okay drawing 15 A connected to either V+ and either COM ...


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