Since new, my filament out sensor has never worked. When the filament runs out, it just prints air. I finally looked into it, and found the sensor. The blue light is on all the time, whether there is filament or not. Is that right? I pulled it apart and looked at it, but couldn’t see anything obviously wrong. They are cheep, so I bought a new sensor, but it does the same thing. I can’t find any settings that would disable it? So, I’m thinking that it might be a cabling issue? Is this something that would be easy to fix? ie. Is the cable available, and easy to change? Or should I just live with it?
Thanks.
I’ve had this K1 Max for a couple of years and have the same problem you have. I replaced the sensor, but still doesn’t work even though the blue light is on. It might be the cable, like you said, or the motherboard connection. I haven’t looked that far yet.
I had better luck with toolhead filament sensor and removing the stock sided mounted ones, the dxc extruder some with toolhead sensor.
I saw that extruder and it seems to be a good replacement.
DXC Extruder
I was worried about the electrical connection as I think the older K1 Max has a different connector than the newer ones. Not sure. Did you have any problems with that..?
I had wondered why the sensor was so far from the extruder? Is the DXC one really just a drop-in swap? Has it caused any issues for you?
I was tempted to trace the cable and have a look. Haven’t figured out how hard that would be? Maybe this weekend.
I think you will need top hat (or no top hat), as this vendor mention it. Also not compatible with cfs upgrade as no cutter, pheatus website seem to lack this information their product page.
I had this issue, had to replace the board. Then had to replace the hotend because the connectors changed on the new board sometime this year.
Ahh. I’ve been looking at getting the CFS after Christmas. And the accessory kit replaces the standard runout sensor by the looks of it. So I think I’ll just live with this until then. But the DXC extruder looked like a good option otherwise!
You can get the kit and install it while waiting for CFS.
DXC is a good option for upgrading from stock extruder. I got better print results with TPU.
The filament runs out sensor is closer to the extruder. It is a better design than the stock one.