TC2866 - Cutter not detected error

I just got my K2 Combo on Friday. It prints like a dream, using the single external spool holder.

CFS is giving me fits and errors right out of the gate. I did get complete one print in two colors, but I was getting errors about the filament feeding each color change. (I didn’t write down the error code, but it self resolved by hitting retry.) The spools are brand new, no damage, they are moving freely. I can see the filament moving through the PTFE tubes without issue.

With CFS, I am getting persistent TC2856 errors. I cleared an extruder jam. I put the printer through another calibration, and now I got this error TC2866 Cutter Not Detected. So I checked, cutter is present and moving as it should. So I did another calibration, same error. I did a factory reset, same cutter error. I have opened a support ticket, but in the meantime, any ideas? This is new out of the box. I have a feeling once I get the cutter error resolved, the CFS should work as intended. **
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Firmware: 1.1.3.6

Double check the wiring, if not damaged/loose, if that seem okay, probably a faulty sensor or missing magnet from the cutter.

I THINK I have it figured out while awaiting a moderation period as my first post. I got into the extruder assembly, again. The filament sensor was off place by like a fraction of a hair… I pushed it gently back into place and did a multi-color Benchy print that was flawless. No errors, nothing.

I’ll try another print tomorrow. Fingers crossed!!

I was hoping it was something stupidly simple to fix, and not a wiring or faulty sensor from the factory.

It’s been a frustrating 48 hours out of the box!

Hi!

Let us know if you solved the issue. Remember also, that you should print only files created for K2 printer, because if you try printing even single color prints prepared for other printer models CFS can have problem with feeding filament also, since feeding filament procedure is writed in the printers presets.

I hope you will enjoy printing anyway :wink:

Sounds like extruder detection board might be faulty. That board is very delicate. Also check the cutter, make sure it’s in correctly and the magnet is inserted and not coming out. I had my Hi do that and when I took it apart, the magnet was dislodged. If blade not inserted correctly, you will get an error message

I quickly found out that the printer does not like anything I try to send from Orca Slicer. So I just copied my settings back over to Creality’s Slicer.

I’m enjoying printing now that the K2 is behaving as it should. My K1C is feeling a little neglected at the moment.

The magnet and cutter are in correct position. Gently putting the filament sensor back into the correct position solved the problem. I’m so glad it was something that simple.

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