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JohnMHammond

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Posts posted by JohnMHammond

    Can't print PLA

    in Materials & profiles

    Posted

    Update - it works!

    So I put the PLA back in and removed the bowden tube when I initially forwarded the material.  I let the filament extrude several inches through the end of the bowden tube, then manually inserted it into the extruder.  I gently forced it through the nozzle until the bowden tube was back into place, and then everything worked normally!  It was getting stuck in between bowden tube and PTFE, like was said above.

    Can't print PLA

    in Materials & profiles

    Posted

    So I bought the Ultimaker 2 a few months ago and was pretty happy with it. After a few prints, the extruder clogged, but I was able to fix it using the Atomic Method. It began clogging frequently, but I was always able to fix it until last week. After trying everything short of taking apart the print head, I decided to switch from the gray PLA that came with the printer to some ABS that I had bought. Lo and behold, it worked perfectly (other than some warping issues). After a few prints, I figured I could go back to the PLA now that the nozzle was seemingly clear, but it didn't work.

    Here's what happens:

    When I am in the process of changing filament to PLA, I can get all the way to the step where I am waiting for the filament to begin extruding from the nozzle. When it gets to the nozzle, it starts making a loud clicking sound and won't come out. I tried using the "move filament" tool as well, moving it back and forth to no avail.

    Any ideas as to what the problem may be? I can't really understand why one plastic would work (ABS) and another wouldn't (PLA)...

    Defective Filament?

    in Materials & profiles

    Posted

    I've been struggling for hours trying to correct an extrusion problem, going through all of the typical steps to no avail.

    Finally I noticed that the problem was not in the print head, but in the system that pulls the filament up into the Bowden Tube. Then I noticed that the remaining filament on the spool was totally smooth, rather than being textured on part of it like the filament that I had already used.

    This is the filament that came with our Ultimaker 2. Is this typical? Does it make sense that this would be causing the problems I'm experiencing?

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