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Crystal Clear action run.png

Release status: experimental

Delta robot 3D printer with extrusion frame and printed legs.
CAD Models
External Link

Cerberus is a delta robot 3D printer, built in 2012 by Grabercars in Scottsdale, USA, derived from the Rostock prototype.

It is named after Cerberus, who in Greek mythology is the 3-headed hound that guards the gates of the underworld. Each of the 3 heads is said to see the past, present and future.

Design Goals

  • Build volume: cylindrical, 245mm diameter, 560mm height.
  • Footprint: triangle, 310 mm width (1515-series extrusions + printed corners) arranged on a 440mm diameter.
  • Frame height: 1042mm.
  • Print surface: round glass or mirror which never moves.
  • Mass of end effector with hotend: less than 50 grams.
  • Positioning speed: up to 400 mm/s in all 3 directions.
  • Positioning accuracy: at least 50 steps/mm in all 3 directions.
  • Simplicity: fewer than 200 parts.
  • Hardware cost: less than $400 USD.