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PEI damaged yet again. Fix with superglue?
 
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PEI damaged yet again. Fix with superglue?  

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spark
 spark
(@spark)
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PEI damaged yet again. Fix with superglue?

Hi all,
I guess this is in the tips category but is a bit of an experiment so YMMV.
I tore the stink out of my PEI experimenting with ColorFabb HT (high temp PETG) listening to Prusa recommendations to use Windex. Didn't help one bit. Attempted to remove after letting cool down to ambient and the spatula slid right into the PEI as if all was well, pull the part and off came a quarter/1 euro coin sized piece of PEI. Not going to get another PEI until my 2.5 arrives so I got desperate and filled in with superglue. Seems to be holding up OK up to 100°C bed temperatures. Just open windows when working with this much Superglue, that stuff is nasty.

  • Use blade carefully to remove fringed PEI areas where detached from bed.

  • Thoroughly clean the 3M glue off the PCB with Acetone and a brass brush.

  • Wipe area with Isopropyl Alcohol 92% or higher.

  • Drop down superglue until a little higher than PEI level. Use of accelerant (Insta-Set) is recommended to speed maintenance.

  • Sand down from 150, 220, 400, 1000, 2000 grids until perfectly level with PEI using alcohol as wetting agent.

  • Wipe off clean with alcohol, inspect for lumps or bumps. Repeat as needed for level surface.

    • To remove superglue, heat bed to +120°C and it will pop right off the PCB.
    It is working for me until the steel sheet build surfaces arrive. Hopefully this will get you guys running again as well.

    MK2S kit owner since 8/15/2017

    Posted : 27/01/2018 4:55 am
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