Cleaning Bowden Tube

[aaronalai 2]

Just a friendly reminder to clean out the Bowden tube. The first time I used ABS plastic little bits of it were scattered throughout the tube, and I could see them being ejected out the nozzle occasionally, some were really big. Every time since then I clean the Bowden tube as depicted below and no longer have little bits of ABS making their way to the nozzle. I've seen a lot of people trying to pinpoint underextrusion and surely a gunked up Bowden tube can't help. I also blow out the extrusion motor case with my breath, this helps prevent any more ABS from worming its way into the Bowden tube.

Rolled up paper towel, both ends of the Bowden tube unattached, shove filament through tube.

 

[skint 62]

I did exactly the same thing the other night I had a looooong thin string of filament stuck in there after a material change.