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Solved Shrinkage

Discussion in 'Troubleshooting' started by Robert Mocsany, Sep 12, 2016.

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  1. Robert Mocsany

    Robert Mocsany New Member

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    Hello Robo fans,

    Even though I print with PLA my prints warp a little bit. The object I am trying to print is 7" by 7" and 1.5" tall. It's about an inch on the left side (facing the printer) that shrinks and lifts off the bed.

    Robo R1, extrusion temp 210 C, print bed is 50 C. I guess the problem is that the temperature of the print bed is uneven.

    Do you have similar experiences? What is the solution? Should I change the heating pad? Can I use a third party heating pads, like this one?
    https://www.amazon.com/gp/product/B016CKFZEM/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A2YI8XQU239Q2W

    Are there any instructions on how to do it?
     
    #1 Robert Mocsany, Sep 12, 2016
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Try lowering the heat overall.
    Since PLA is technically printable on a room temperature bed, lower that bed temperature for starters.
    Secondly, consider lowering the extrusion temperature as well. 210 is on the high-side of what PLA normally needs*.

    Printing plastic is all about heat management. Make it easier on yourself and use only what you need.


    *obviously every spool is different, but I have never had one that needed to print that hot.
     
    #2 mark tomlinson, Sep 12, 2016
    Last edited: Sep 12, 2016
  3. Chuck Erwin

    Chuck Erwin Active Member

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    Thank God this is about plastic.
     
    #3 Chuck Erwin, Sep 12, 2016
    Robert Mocsany and mark tomlinson like this.
  4. danzca6

    danzca6 Well-Known Member

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    th.jpg
     
    #4 danzca6, Sep 12, 2016
    Chuck Erwin, Robert Mocsany and mark tomlinson like this.
  5. Robert Mocsany

    Robert Mocsany New Member

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    Thanks, I will decrease the temp and see what happens.
     
    #5 Robert Mocsany, Sep 12, 2016
  6. Tim Pilcher

    Tim Pilcher New Member

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    Hi,
    For what its worth I use 'Pritt Xtra Strong Green Glue' and nothing lifts of the bed now.

    Thanks
     
    #6 Tim Pilcher, Sep 13, 2016
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