Makerbot Smart extruder & Smart extruder + hugger
thingiverse
I tried printing one of Daduck748's designs to prevent the printer from initiating an extruder change while I was removing the filament glob from the nozzle. It didn't fit perfectly so I redesigned it to have clips in the correct locations for both non-plus and plus versions of the smart extruders. So far, it has been working flawlessly without any issues. Note: Also, be aware that if you experience a static shock when touching the nozzle with a metal object, it can trigger the extruder removal.
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