Replicator 2 problem with height

[Rednels]

Hello everyone,
I have a replicator 2 and I have run into a problem where my nozzle keeps getting clogged. I have also had problems with the nozzle sometimes dragging small strings off the print.

I am sitting here watching a 6 hour print finish and I am seeing the build tray moving witch is telling me the nozzle is hitting the print. These problems seem to happen after a bit of printing, like a couple of hours or so.

Is this z axis related, or is it extruding too much causing the part to become too high?

It doesn't drag in the early layers.

Not sure why this is happening, it was working one day, and the next this started and I haven't changed any settings or hardware or plastic....

[DarthRevan]

I had this problem a while back. Turned out to just be my bed was slightly off level.

[Rednels]

Thanks for the advice. I think I figured it out, I was printing too hot and that was causing it to over extrude. Eventually it led to the nozzle dragging in the print. I lowered the temp 20 degrees and the problem was solved.

[dkightley]

Hi Rednels

Out of curiosity (as I also use a Replicator 2), what temperature were you printing at before you lowered it by 20 degrees?? I hope I'm correct in asuming you're printing in PLA.

[KeyboardWarrior]

Hi Rednels

Out of curiosity (as I also use a Replicator 2), what temperature were you printing at before you lowered it by 20 degrees?? I hope I'm correct in asuming you're printing in PLA.

I would assume from 230 to 210. Some MakerBot PLA filament recommends 230 for printing PLA.