Bed Heater failure
My older MK3 has a problem when I heat it up, I am getting a bed heater error. My MK3S is working great right next to it so no power issues or whatever. I am including a photo of the connection, in case that is the issue. At first I got this error a few times in the middle (which became the end I guess) of a job, but now I can't even preheat without the failure.
RE: Bed Heater failure
The likelihood is that one of the wires has broken, in the cable,
I replaced mine with 16AWG Flexible Silicone Wire which is more flexible than the original, I also add a Nylon support filament to reduce the point flexing of the cable and prevent it drooping!
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Bed Heater failure
@joantabb
Thanks. I’ll give that a whirl
RE: Bed Heater failure
@henryhbk
Best wishes
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Bed Heater failure
@joantabb
How awesome is this. My printer from Prague is malfunctioning here in Boston, and a random person in Britain respond within minutes with the correct solution. The wire was broken INSIDE the solder! New wires and it fired right up!
RE: Bed Heater failure
In the future Joan will be able to beam directly to your house and fix your printer for you, while you prepare two cups of Tea. 🤩
Comments with love from California 😎
The Filament Whisperer
RE: Bed Heater failure
For folks who might find this in the future, this is what it looked like inside the solder (i had to pick the wire bits out of the solder blob with a set of forceps):
RE: Bed Heater failure
The wire Prusa uses is better than the basic flex we use for say mains cables, because the prusa cable has more thinner conductors (21) than Mains cable (7) , but the silicone insulated flexible cable has 252 conductors in the same gauge cable (over ten times more conductors) and is therefore more resistant to bending fatigue
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK