Summary

These are corner brackets designed to provide structural support for styrofoam seedling grates. They are customizable in dimensions to accommodate various grate sizes. The design optionally includes an integrated hinge. The model allows for the potential integration of a heat plate for consistent temperature control and mounting points for growing lights. Additionally, the design may incorporate integrated pins, enabling assembly without the use of screws.

For my box, I used 3 styrofoam plates with a thickness of 30 mm and a multiwall plate with a thickness of 16 mm for the lid. I used a heating plate and a thermostat to maintain a constant temperature of 25 degrees for the sensitive seeds.