Sometimes when printing, we come to the end of a filament reel and need to feed a new reel in, mid way through a print.
Normally I just feed the new filament into the extruder motor port while the printer is printing and this works, but until the new filament is completely through all the way to the nozzle, any filament retractions cannot work – all that happens is that the new filament retracts inside the Bowden tube but obviously doesn’t pull the last piece of the old filament back.
Can anyone suggest a way of successfully joining filament ? I have tried various plastic glues and hot-gun glue, but none seem to work.