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  1. #1
    Student
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    Feb 2015
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    Pinehurst North Carolina
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    Now I cannot get the parts off the bed......

    I'm using ABS on a heated bed at 100 C and kapton tape with a very light acetone/ABS wipe. Now I cannot get the parts off the bed. I can wiggle a putty knife under the printed parts but they generally get damaged in the process. Any ideas?

    Thanks,
    Chris

  2. #2
    Staff Engineer Davo's Avatar
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    Nov 2013
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    Put the bed in the freezer.

  3. #3
    Engineer Marm's Avatar
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    Sep 2014
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    Pull up the tape.

  4. #4
    i use hairspray on glass bed ,let the prints cool off ,and they just come loose by themselves

  5. #5
    The 3d printer guys at my library uses one of those thing that lifts pie or pizza from the pie or pizza container (fk, I have no clue what those are called)

  6. #6
    Engineer Marm's Avatar
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    If the tape is too sticky, get rid of it. Use purple glue stick. I've been finding that Hercules glue is better than elmers. I usually lay down a thick enough layer of glue that after the first print is done, it leaves a residue. I just lay more glue over that each time for a half dozen prints or so until the residue is pretty well formed, and then I can go for weeks without having to add more glue. Then every 4-6 weeks, I wet the table down, and smooth out the bumps, or if it's bad, clean it completely. The part pulls a small layer of the glue up, and that can be washed off with water if neccessary, but I rarely do, or I sand it off since I'll be using an acetone bath later.

  7. #7
    Student
    Join Date
    Feb 2015
    Location
    Pinehurst North Carolina
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    9
    Hi guys,

    Thanks to all for the ideas.
    I have been trying different amounts of the acetone/ABS slurry. It only take a very little on the Kapton tape,just enough to remove the shine on the tape, so that you can barely see the wash. In addition I started using a modified cake knife to remove the prints. I thinned the end of the knife (which is broad and rouded) then gave it a very slightedge radius so that it doesn’t catch or damage the tape and it has been workinggreat.

    Chris

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