The Zeta1 is a large format (24x36x36") modular quad extruder 3D printer. It features 4 fully independent extruders to take advantage of the massive print volume and offers flexibility of producing a single extra-large part in up to four materials, or 2 large duplicate parts in 2 materials each, or 4 medium sized duplicate parts in a single material each. This printer is designed to be an affordable (under $10k) industrial structure printer and will serve as my main large format printer for the foreseeable future. I'm a researcher and am designing and building this printer to aide my research professionally rather then shell out $30k for the closest comparable printer with only 2 tool heads. This design is fully modular and easy to adapt as it's based on standard t-slot rail. The outer frame is 30x60mm extrusions assembled in a crosshatching pattern to ensure rigidity. The physical frame size is 60x60x36". A lot goes into designing, building and troubleshooting a machine this large and complicated, which is why I'm creating this thread. I will likely post my part files and a simple BOM but I'd advise highly against non-professionals replicating this machine. Initial frame and bed assembly. The bed is 24x36x0.5" 7001 aluminum plate with 3 industrial silicone heaters for specific zone heating. The thickness of the plate really helps to spread very even temperature on a perfectly level platform. The bed rests on 6x M12 screws tapped directly though 30x60 extrusions and can be easily leveled with a wrench.
