Seems like your solution is valid for addressing filament build-up on the nozzle that may not be getting scrubbed off during the head wipe or perhaps last second oozing during the probing. For the latter, a lower probe temperature should help. My nozzle was completely clean so no need to manually wipe. The issue has to do with poor electrical conductivity between the nozzle and the four leveling pads. In my case I have had good success with removing the fan from the head, so I can get at the long screw that holds the sensing wire into the nozzle assembly. Removing that bolt and wire-brushing it and using contact cleaner on it and in the bolt hole solves the root cause of the issue for me, at least for a few weeks. I found out about the problem by using an ohm meter between the leveling pads and the nozzle. In my case there was a lot of resistance. After cleaning the bolt that holds the sensing wire to the nozzle assembly, I got it down to almost zero ohms. YMMV.
Baa-loney. Scotch Brite is a band aid. Problem is signal wire connection at the nozzle/heater. I fixed that and my Taz 6 does its leveling/cal routine without any problems. I know it is a pain when leveling fails, I struggled with it for a long time, but after I fixed that wire connection kicking off a print is automatic. Hate to hear anyone trash the Taz 6, it is a good machine.
Seems like your solution is valid for addressing filament build-up on the nozzle that may not be getting scrubbed off during the head wipe or perhaps last second oozing during the probing. For the latter, a lower probe temperature should help. My nozzle was completely clean so no need to manually wipe. The issue has to do with poor electrical conductivity between the nozzle and the four leveling pads. In my case I have had good success with removing the fan from the head, so I can get at the long screw that holds the sensing wire into the nozzle assembly. Removing that bolt and wire-brushing it and using contact cleaner on it and in the bolt hole solves the root cause of the issue for me, at least for a few weeks. I found out about the problem by using an ohm meter between the leveling pads and the nozzle. In my case there was a lot of resistance. After cleaning the bolt that holds the sensing wire to the nozzle assembly, I got it down to almost zero ohms. YMMV.
Baa-loney. Scotch Brite is a band aid. Problem is signal wire connection at the nozzle/heater. I fixed that and my Taz 6 does its leveling/cal routine without any problems. I know it is a pain when leveling fails, I struggled with it for a long time, but after I fixed that wire connection kicking off a print is automatic. Hate to hear anyone trash the Taz 6, it is a good machine.