FEP Resin Vat with embedded nuts - Custom version V2

This is a custom design for my own DIY 3D Printer LCD UV / DLP (still in progress).
Extelnal measures: 197 x 137 x 50 mm.
Internal measures: 100 x 159 x 50 mm.

Easy emptying / Drain.
For 140 x 200 FEP sheet or smaller.

The design accepts screws 20mm x 5mm with V head.

The nuts used in this design are 20 x 8mm (x 5mm hole).



Version with lateral nuts:
https://www.thingiverse.com/thing:3538755

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Well, it is a little embar