Frame Designs
If you use solid bottom boards, it is easier to build a wooden telescoping box to house the scale.
If you use screened bottom boards, a frame can be built to hold the load cells that will allow the debris to fall through. The load cells are removed from the scale and mounted in the frame. This voids the warranty.
If you use topbar hives ...
The goal is a low cost frame that can be built from readily available materials by students using tools found in a home shop. This has not yet been achieved.
Five frames have been designed, each with advantages and disadvantages:
