A Benchy finished in two minutes and forty three seconds is the number that jumps out first. Fail Fast! runs a compact Voron V0 based machine at 1,500 mm/s with accelerations up to 26,000 mm/s², and that pace from a desktop sized frame is what makes this build worth a close look.
The machine sits on a 1515 aluminum extrusion skeleton with an aluminum X-beam carrying the gantry. The direct-drive toolhead stays light, using an LGX Lite extruder and a hotend built around a Volcano block with a CHT nozzle spacer. Cooling gets heavy treatment: two large 6040 axial fans live in printed ducts, and extra fan assemblies hang off the frame sides. Electronics mix 48v and 24v drivers on the control board, and the filament list covers CF nylon and ABS. Visually it is a black frame with an orange toolhead cover, tidy and purposeful.
What stands out most is the structural work. Printed side panels, corner gussets and press-fit upper idler brackets stiffen everything, and the feet are bolted straight into the table. The maker ran sizing with Q = m Cp dT and argues that maximizing airflow mass is the best value for money route to enough cooling at speed, then tuned motion with an MZV input shaper. The stiffening shifted the frame resonances and permitted gentler shaping algorithms.
One open point: anchoring the feet to the table made no difference to the resonance readings. The structural changes are what moved the needle, and where the next ceiling sits is an open question.
Project by Fail Fast!. Watch it on their YouTube channel: