Warped bed :( seems like a common QC issue

Bambu Lab X1 Series
251

I am happily answering your question. In order to give the best/accurate answer I will describe the DIY solution here which is basically what I am doing:

Quick-Fix for DIY of GoodPlate:

  1. Cut Glass into 258x258x2 mm dimensions
    CAUTION: wear appropriate gloves!!
    Type of glass: I am using float glass. Here you need a reliable supplier who is accurate regarding the 2 mm height and flatness. If you can afford use safety glass. But I don’t know how these type of glass handles heat transfer. Test for your own please. Once the magnetic-foil is placed onto the glass it also operates as a safety feature since it is flexible and holds the glass together in case you drop it.

  2. Magnetic-Foil 1.5 mm
    You need either one single (very expensive and hard to handle) or couple of slices of magnetic foil with heat-resistent adhesive. If cheap adhesive is used the magnetic foil gets “floaty” on the glass bed or it comes of if you try to separate the PEI sheet from the magnetic foil, especially with high temperatures.
    GoodPlate can handle 100 ° Celsius of heat for ABS print. Just keep in mind that the heat sensor is on the original bed which means to give GoodPlate additional 2-3 minutes to reach the desired target temperature. You can pre-heat your bed via Bambu Smartphone App or on Display of your printer.

  3. If you do print ABS and heat the bed upto 100 ° Celsus give it after the print a couple of minutes to reach at least 50 °. Reasons:

  • Otherwise you will burn yourself. But that would have also happened without this solution hehe :slight_smile:
  • This gives time for the adhesive to get stiff fully
  • Your ABS print will warp if you don’t let it cool slowly

  1. Heat transfer
    I have measured that the Bambu printer “used wattage” jumps between 70 Watt and 140 Watt during print and if you just have your heat bed on. The glass does not influences this measurably (at least with my devices).

  2. Mounting Clips
    In fact the mounting clips which comes with my product are printed on GoodPlate with ABS. The mounting clips ensure that glass+magnetic foil construct doesn’t floats on the heat-bed. These clips are optimized (regarding height) for the factory textured PEI sheet. You can download the clip step files here to adapt it to different PEI sheets with different heights.

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Feel free to ask me further questions if I was not detailed enough :slight_smile:

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