Lower bed - printable?

I noticed in the build instructions that there is a lower bed and an upper bed. I'm assuming the upper bed is glass, but the instructions specifically say to be careful tightening the screws on the the lower bed because the acrylic can crack. I can't seem to find a drawing for the lower bed. Is it a printable part ?

The drawing for the beds are part of the All_panels.dxf /.svg as they area a result of cutting the acrylic panels window openings. For separate drawings I believe you can look in WillWorkForPlastics Metric files. To answer your question about printable I would say No, It needs to be really stiff as it is part of the Z-axis's structure. You can use wood or acrylic for both the lower and upper bed. For more clarity see the pictures in the build instructions. The glass build plate then goes on top of the upper bed.

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