Grizzly G0704 Mill Enclosure - CNC Conversion

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This is an enclosure I built for my Grizzly G0704 Mill CNC conversion. The pan is constructed from 1/2" plywood, coated with glossy marine enamel to keep it waterproof. The front section is enclosed using heavy-duty shower curtain material, secured with zip-tie rings. The side stringers that maintain the tray's center position on the mill base are crafted from standard 2x2 lumber, featuring precise angles cut or sanded into them. The large side panels are made from Coroplast - a versatile material commonly used for real estate and political yard signs. Available in 4x8' sheets, it can be easily cut with a utility knife. The frame is built using aluminum extrusion. The vertical corners consist of 3/4" aluminum angle on the exterior and another piece of 1/2" aluminum angle on the interior. Coroplast is sandwiched between these angles, secured by punching zip ties through both channels. The top rails are 1/2" aluminum channel, positioned with the open sides facing down, mitered, and riveted to the verticals. Tips: - Assemble the plywood pan using brad nails and waterproof wood glue. - Attach the front tray bottom with screws so it can be easily removed for convenient tray placement on and off the mill. - Use zip ties to hang the shower curtain; metal shower rings will rattle and buzz. - A 3D-printed plastic jig is available for drilling holes in the corners of the pan to mount the vertical aluminum angles. The bottom pan is inspired by photos of a tray created by David Kemp, also known as Hoss.