evenlu

I had a clogged nozzle and recently tested different fluids for cleaning it. I found terrace cleaner being really effective removing stained PLA both from the inside and outside of the nozzle. I used a small ultrasonic bath with the cleaner filled just above the nozzle. I tried both settings on the bath (35 and 60 kHz), but I am unsure whether it was the ultrasound that did the trick. Terrace cleaner contains all sorts of acids and the one I used had <5 % sodium hydroxide, <5% nitrilotriacetic acid (NTA), <5% amphoteric tenside and <5% sodium gluconate. My nozzle was full of residue and was more or less free of any after about half an hour in the bath.