Oops, this was already suggested in the comments, didn’t see them when writing my comment, great that the print turned out well eventually.
Skip to main content
I took care of that for you, @GloomySparker! Pretty soon, users will be able to edit their posts, so stay tuned 
That’s nice of you! (Nice inline image! ;))
9 days later
Another possible solution, or addition to your process, could be to cool the chamber above the nozzle. I don’t know the nozzle type for the Replicator2, but on the Taz 4, a replacement fan scoop is available that directs air over the chamber above the nozzle, allowing you to avoid heat creep for long PKA prints.
there may be something similar that you can do for the Replicator2.
Thanks a lot for your answer @Snortimer. In fact, the Replicator 2 has a fan that will cool down prints. In Simplify3D, you can set the speed of this fan layer by layer. After the first layer it is set at 100% by default, value that I let. Moreover, because I live in Switzerland, because it’s winter and because my printer is in the basements, the printing environment is quite cool (too cool sometimes).
The print speed hint was definitively the solution in my case.
One more time thanks for your help.
Oh, I agree that the print speed is a solution to your printing problem. I just thought that a dual-scoop fan guide might be an addition to your arsenal, and allow you a little more flexibility in your print speeds and layer heights. It’s done wonders for another Taz owner here in Colorado (who regularly prints very long PLA prints).
The additional scoop guides air across the radiator fins on the nozzle itself, rather than the print, to prevent heat creep. It happens to use the same fan that cools the print.
It’s two solutions to the same problem, allowing you more options in the future. I don’t know if you can make changes like that to the Replicator2, but I don’t see why not.
Thanks a lot getting involved…