Patrick Ferrell

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Latest activity by Patrick Ferrell
  • Patrick Ferrell commented,

    Samantha, so that was with natural PLA?  Wow - I've never seen that much change with temperature on PLA.

  • Patrick Ferrell commented,

    Your eyes are better than mine - I can't be sure of that from the photo.  We need to make Samantha post ultra-high resolution photos including measurement reticles with for these contests.  But tha...

  • Patrick Ferrell commented,

    The multiplier does seem to make more sense than just layer height.

  • Patrick Ferrell commented,

    I guess Darrel types faster than I do.  Brevity was never my strength!

  • Patrick Ferrell commented,

    These are three separate prints, right? Also - I can't exactly tell by the photo, but I assume that the apparent spiraling isn't simply from helical, single-wall printing.

  • Patrick Ferrell commented,

    It's happening on the outer extents of the overhang (thin sections/corners more prone to thermal error) and was printed without support - but I haven't done enough to know the magnitude of thermal ...

  • Patrick Ferrell commented,

    Looks like a potential thermal problem - perhaps the printer only has a single cooling fan (blowing from the 'good' side).  The imperfections (mid-height and top) are both 180 degrees from the star...

  • Patrick Ferrell commented,

    Darrel - I don't know if that's the answer re:3D is looking for, but those are the two parameters we needed to change to get a more smooth transition.

  • Patrick Ferrell commented,

    We had that problem when we first started with multi-process prints last summer at the Clear Lake City-County Freeman Branch Library.  It was quite noticeable on this Freddy Fazbear print: (See li...

  • Patrick Ferrell commented,

    Mike - Are we suppose to answer here in the comments or send our answer to you directly?