Getting a compact CoreXY to hold one continuous wall at serious speed is the sort of problem that looks easy until the flow number refuses to cooperate. That is the challenge this build takes on, and the payoff is a thin black rectangular container printed in a single spiralled pass, finished in roughly a minute and twenty seconds. For a machine this size, that pace is what makes the project worth attention, in my opinion.
The hardware underneath is a V0.1 kit running a CoreXY layout with linear rails and belt drives. Up front sits a Volcano block with a CHT nozzle spacer, fed by an LGX Lite working with an extruder motor. The electronics carry both 48v and 24v drivers on the control board, and the bed is a metallic plate resting on orange silicone or spring spacers. That flash of orange on the mountings is a nice bit of character on an otherwise all-business machine.
The numbers are where this build really earns its keep. Max velocity was configured at 1500 mm/s and the print actually reached that speed, with acceleration and deceleration both set to 50,000 mm/s². Flow came out at 64.3 mm³/s. For one continuous outer wall I think that is a serious amount of material pushed through per second. The run was executed from Mainsail using a file named 'vase 1500mm.s.gcode', and the final layers were completed with the toolhead working its way around the perimeter.
There is a boundary worth naming, though. The maker points out that abrasive materials such as CF or glow-in-the-dark filament wear through heat breaks, and keeps ABS for fast work while reaching for PETG or CF-nylon when reliability matters most. By the maker's account, the longest jobs on this machine run about ten minutes. How to push abrasive filaments hard on this hotend setup strikes me as the open question I would want answered next.
Project by Fail Fast!. Watch it on their YouTube channel: