[Smelling a burning scent when heating up the printhead]

Also, when touching the temp sensor, it is really hot. Is this normal?

Thanks

[Smelling a burning scent when heating up the printhead]

Hello,

just a few days ago, my printhead's nozzle got clogged, not knowing any better I replaced the block with a new one included with the printer. Unfortunately the temp sensor got stuck so I have to dig in to the electronics board and replace the old temp sensor. Now the printer is working, but when I heat up the printhead a burning smell started blowing out of the small fan at the back, and yes I made sure that none of the wires are touching the fan shroud.

What should I do?

Thanks.

[A different multi-extrusion approach - UM tool / printhead changer]

I wonder if you could do some sort of mechanism at the top instead of the side, so it wouldn't take that much printing space. You are doing a great job!!!

New idea for new version of ultimaker: auto print change/ changing printheads in the middle of a print to create duel print materials.