This document describes how to build a low-cost home worm casting harvester. It lists the materials needed, which include paint roller frames, hardware cloth, duct tape, floral wire, plastic pipes, and wood boards, costing under $35 total. The instructions provide steps to assemble the harvester by wrapping the hardware cloth around a plastic pipe segment and securing it with tape and wire. Rollers are attached to boards to form a cradle that the pipes slide onto. The harvester is used by loading worm bedding onto the screen and pulling it down to separate the castings from the bedding, which is returned to the bin.