BigXY Large Format CoreXY Printer

The printer that is designed to print printers... With a build volume of 470x510x510mm and full metal frame and extruder, BigXY can run all filaments on the market, while achieving good production accuracy. Dual ballscrew Z axis to support the heated glass build plate, and a beefy Nema 21 stepper to drive it. Linear rail X and Y axis, powered by 2 60mm Nema 17's running CoreXY mechanism with a direct drive E3D extruder. The XY belt is stainless reinforced polyurethane to minimize stretch. Involves a lot of machining and a decent amount of welding to build, but only costed around $700 including electronics. More details to come.
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