Some time ago I asked about burnt filament dripping from the printhead, thinking the excess was being picked up from the print. Apparently, the filament is seeping from above the hot-end and getting burnt. I’m wondering if it’s a bad printhead or just bad assembly. Either way I’m in the process of installing E3D v5 now…
Evil seepage… I had similar with cheap j head clones. Hot end barrel end and liner has to be butted tight and sealed to stop it.
From where you got that
Your printer is a RoBo 3D? They used cheap knock of j-heads, they are just bad quality, the E3D is excellent.
@Aaron_Kartash indeed, it’s RoBo 3D.
yeah the j-head on the original robo 3d is crap. replacing it with the e3d is almost required
We have fixed these types of problems on nozzles using PLA, we found that if you replace the PTFE inner lining you will find that there is a swelled spot along it’s length, this causes a gap at the heater block in which the hot PLA will physically push the heater block out of the neck of the nozzle. to fix this, get some PTFE tubing to fit your filament, cut it to fit the Hotend, remove heater block, clean it out, reassemble. BE SURE you secure the Hex head holding screws, or you’ll be making this same repair again. We have successfully repaired 3 of this style of hotend using this method. (On hot ends of this type there should be ZERO gap between the PTFE and the Heater Block. If a gap forms, rebuild the hot end immediately, or suffer leakage)
@Aaron_Kartash I have to agree, I even had a Prusa Nozzle, I liked the E3D Hot End MUCH better. and it’s a dream when printing in ABS.