Storm | A DIY 3D Printer

An open-source Cartesian bedslinger 3D printer built and designed from scratch to beat the Bambu Lab A1 in speed and print quality, by a 13 year old

Most budget 3D printers sacrifice speed for price or quality. Storm is better because it focuses on all three, fast, high quality, and affordability

I used a big Cartesian bedslinger structure + Klipper input shaping + high quality components.

Goals

• 300–400mm/s print speeds, sub-5min Benchy
• Beat the Bambu Lab A1 in speed and quality
• Under $350 total including shipping and taxes
• Open source
• Screen
• Klipper Firmware
• Cool

Specs

• Motion system: Cartesian bedslinger
• Build volume 220×220×300mm
• Firmware: Klipper
• Extruder: Sherpa Mini
• Hotend: TZ V6
• Probe: 3DTouch
• MCU: BTT SKR Mini E3 V3.0
• Raspberry Pi Zero 2W
• Display: ILI9341 2.8" SPI touchscreen
• Part Cooling: Dual 5015 blower fans 24V
• Hotend cooling: 4010 axial fan 24V
• Bed: 235×235mm 24V aluminum heated bed (Ender 3 bed) + PEI textured build plate

Frame

• 4× 2040 aluminum extrusion 350mm for the base
• 2× 2020 aluminum extrusion 350mm for the Z towers
• 1× 2020 aluminum extrusion 350mm for the top crossbar

Motion

• 8mm smooth linear rods on all axes (X, Y, Z) rails are too expensive :(
• LM8UU linear bearings
• T8 leadscrews 330mm for Z axis
• GT2 6mm belt for X and Y

BOM

https://docs.google.com/spreadsheets/d/1btD1Bjle54Zft8ynW4hvl1bNV1Zsg6aF89J3ntGE-do/edit?usp=sharing

Total: ~$315 before tax and ~$347 with tax

CAD

assembly in Onshape: https://cad.onshape.com/documents/37467ea71eb1fca5838973f8/w/7266e1215341462849f7532b/e/d342240afd8f3da62d0e4bb2