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  1. #11
    PCL can be mixed with carbon black to make a printable conductive filament called carbomorph, as described in this paper: A Simple, Low-Cost Conductive Composite Material for 3D Printing of Electronic Sensors.

    -Unrelated info removed and referenced article located:

    http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0049365

    -Davo
    Last edited by Davo; 11-09-2016 at 06:16 AM.

  2. #12
    Staff Engineer Davo's Avatar
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    We just melt the pellets and print with that. We don't create filament. Sorry.

    Our MK1-250 head has a spring loaded bearing assembly to keep the filament snug against the hobbed motor shaft, which allows for variances in diameter. We can usually run filament between 1.6 and 1.9mm.

  3. #13
    Staff Engineer Davo's Avatar
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    No, we communicate over CANBUS, and I'm unaware of other printers doing so.

    The MK2-250 is great for flexible filaments, but the shafts are in fixed positions, so it is less adaptable to variations in filament diameter.

  4. #14
    Staff Engineer Davo's Avatar
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    Sorry, no. The only extruders that I've heard of with reliable, consistent diameter output cost too much for most home users.

  5. #15
    Hi RonJon,
    Would you please share some of your settings to properly print PCL filament (speed, extrusion temperature , etc) ? What do you mean with 'aftermarket modrifications' ?
    I also make homemade PCL filament from pellets with the filastruder: I obtain a rather fine 1,75 mm filament at a 70-80C temp. The molecular weight of PCL might be of importance regarding the viscosity of the flow, mine is around 80,000.
    Unfortunately I have troubles printing the PCL filament using my FDM Volumic printer (it is based on a J-head); I had some encouraging results at a 128C extrusion temperature, but now I have the same problem than you with the filament not being pushed in, so I would be so happy with some advices making it run like a Cadillac ;-)

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