I have a K2 for a few months now and overall I am very happy with it. Until two days ago…
(Apart from the fact that the cloud printing is taking longer and longer and I have to haul an usb with the gcode on it to the thing since the last calibration settings update)
After my last print two days ago it told me that there was a spool retract error or some material has broken off in the extruder. I use a CSF so the spool issue is not it.
Following instructions I removed the extruder, verified everything is fine, watch the little blue light blink off when I take the extruder bit off and get back going.
I start recalibrating and it bangs hard when it reaches the left side of the frame.
Y-axis obstruction issue…
I check the belts, they seem tight, I check the rails, nothing there. I lube the rails with the little lube they give and move the head around a bit manually. No problem there.
I go back, recalibrate… CFS Spool material error is back.
Same things, all seems well. Display shows a little grey circle showing no filament in the loader and I go and print.
That goes well and it finishes before I turn in for the night and leave it be. I wake up to see that while it IS done and the material IS pulled back, it says the cutter is missing or stuck.
Again open the device, cutter is there and moving fine. I replace it with the spare anyway and off I go.
I needed some dowels, start the print and no worries. (other than a few dowels apparently falling over and the camera ignoring this but I needed only 3 spares)
Once done, the printer zeroes out and bam! CFS Spool material error. Again!
Again I go through the motions and once done and pushed all leftover material out manually, it seems to be ok and I set up another print. It starts quick calibration and NOW it bangs hard to the left side of the frame again and gives me an X-axis movement error!
There seems to be nothing wrong, no slack and no obstruction but when I zero it out and move it to the left manually, anywhere on the Y axis, it does the same. A hard bang, what seems like belt slipping and an error on the movement.
And then the little CFS indicator light goes back on again on its own.
What in the absolute everything is going on here?
Should I troubleshoot this or wait for my paycheck in four days and just order a whole load of replacement off of Amazon?
One thing I had noticed is that there seemed to have been a tiny bit of the packing peely film leftover on the top left that had been rubbed against by the printer and frayed. All I can try to think of is powering it down for now and getting a vacuum cleaner, some canned air and a swiffer in there to clean out the inside as much as I can in case some flake of material’s just floating around and messing it up.
I left it offline for a few hours since I had stuff to do and after turning back on it went to full initializing of everything, including the loaded CFS spools.
Calibration was a success.
Then I selected my print from the usb stick and set it to work. I set it to always calibrate again for a bit and it started. Despite throwing another message the detector could find filament it continued. Despite another bang to the left side at quite some force it always seems, it continued.
Until it told me that the z axis coordinate print coordinates are out of range. Not the Y, not the X, not the filament detector (which is STILL shining blue but letting me work at least). Now it’s the Z axis.
I have no more ideas what to do now.
Should replacement be neccesary, what would be the most expedient way of going at this? Bit by bit? Separate print/command plates or just try and get entire units and be done?
Taking in account that I have the smarts to do this myself but I tend to get frustrated/overwhelmed and then just dejected easily. I’m hoping fixes/replacements aren’t going to leave me banging my head into a wall with what little time I usually have after a full workday to do this.
In the mean time I have ordered a whole new extrusion block including the detector and its little motherboard so if replacing is the only option there I got it…
