24. November 2011
after cleaning each nozzle by hand for a few months, i come to a new idea.
After thinking a while about how to change the problem. I take some of the stuff we had at our lab and build a small Lab-Mixer!
Its only used for cleaning 3d Printnozzles.
The rotationtable of the labmixer holds 4 glases where each nozzle moves in a solution of aceton.
As engine i use a 220v engine with 3 w.
The engine makes 4 rotations in one minute and is fast enough for making the plastic weak in the nozzle.
Put the nozzles in the glases of the Labmixer and give some aceton in. After 2-4 hours all the ABS is weak. Now its easy to scratch the ABS out oft the nozzle.
After rough cleaning i hold the nozzles under warm water and wipe them with dry paper.