So readers know: all I’ve done so far is set up my U1 and run off multiple dragon test prints. I’m getting “toolhead swapping anomaly” messages at the end of most prints, usually a multiple count on toolhead 2 and none (or few) on the other toolheads.
I decided to confirm my suspicions about this being a defect of that particular physical toolhead by swapping them around, so I unloaded the filament on heads 2 and 4, physically switched heads 2 and 4, and tried to re-load the filament.
The first time out, filament loading worked like a charm. Loading the Snapmaker filaments resulted in the colour and type being correctly assigned to each toolhead (by RFID, I presume). But now, I can’t get them to register at all. I realise I can set them up manually, but right now I am exploring this printer and I want to understand why it isn’t working.
To start with, I did not physically remove the reels from the holders, but in case it had not observed a change of reel I took the reel away and then brought it back. I’ve even tried swapping the reels around, and power-cycling the U1.
What’s the trick?
Other factors which might have a bearing: when originally loaded, the U1 was on its original firmware 0.9.3. It has since been updated to 1.5.1, then 1.4.1, then Paxx 1.4.1 (in case that matters).