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Printrbot CNC


Printrbot CNC from Printr Bot on Vimeo.

Printrbot CNC mills aluminum. We were nervous, but it was easily up to the task. from Printr Bot on Vimeo.


CNC Beta Specifications

  • Cut Volume: 24″ x 12″ x 5″
  • Electronics: TinyG – USB based CNC Controller
  • Power Requirements: 24 Volt
  • Spindle Motor:
    • 670 KV
    • 1.8 HP
    • 16,000 RPM (16 Geared Aluminum Pulley)
  • Spindle: 8,500 RPM (30 Geared Spindle) 1.8:1 Ratio
  • Collet Requirements:
    • R8 Collet – 1/16″ to 3/4″ by increments of 1/32
    • ER16 Collet adaptors available
  • Tooling Plate:
    • Mic 6 Aluminum Plate 3/8″ thick
    • 3/8 – 16 Threaded holes reamed for a 5/16″ pin
    • 2″ hole center
  • Belt: GT2 5mm Pitch
  • Bearings: 15mm Linear Rail
  • Threaded Rod: 2 Star ACME Threaded
  • Aluminum PB Plate Cut: 1.5mm Depth / 2.5mm Step Over / 500mm/min
  • MDF PB Plate Cut: 6-8mm Depth / 5mm Step Over / 2000mm/min