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Delta robot 3D printer.

branch: master
Octocat-spinner-32 .gitignore Moved jaws to separate file. May 10, 2012
Octocat-spinner-32 README.rst Blank lines. February 10, 2012
Octocat-spinner-32 bearing.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 belt.scad Initial commit. February 10, 2012
Octocat-spinner-32 bowden_hotend.scad Convert CR+LF (DOS newlines) to LF (Unix newlines) and adjust some di… June 20, 2012
Octocat-spinner-32 bracket.scad Fixed indentation. April 22, 2012
Octocat-spinner-32 carriage.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 configuration.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 deltacode.py 5 steps per mm. May 13, 2012
Octocat-spinner-32 demo.py Updated demo script for larger footprint. May 04, 2012
Octocat-spinner-32 endstop.scad I think there's a bug in OpenSCAD that sometimes gives unexpected res… June 29, 2012
Octocat-spinner-32 flange.scad Passing first speed tests at 600mm/s. March 18, 2012
Octocat-spinner-32 idler_end.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 jaws.scad Moved jaws to separate file. May 10, 2012
Octocat-spinner-32 jig.scad Triangle jig for easy marking/drilling of top/bottom plywood frame. April 22, 2012
Octocat-spinner-32 joint.scad I think there's a bug in OpenSCAD that sometimes gives unexpected res… June 29, 2012
Octocat-spinner-32 linear_bushing.scad Vertical carriage. March 13, 2012
Octocat-spinner-32 motor_end.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 nema.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 penholder.scad Spaces instead of tabs. May 10, 2012
Octocat-spinner-32 platform.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 plywood.scad radius3 April 22, 2012
Octocat-spinner-32 pulley.scad I think there's a bug in OpenSCAD that sometimes gives unexpected res… June 29, 2012
Octocat-spinner-32 rod.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 rostock.scad Made the full assembled model in rostock.scad more parametric. July 15, 2012
Octocat-spinner-32 slic3r.ini Back to printing smaller parts again. October 09, 2012
README.rst

Concept for a delta robot 3D printer

Design goals

  • Build volume: 8x8x16 inches or 200x200x400 mm
  • Footprint: 12x12 inches
  • Print surface: 8x8 inches heated glass which never moves
  • Mass of moving platform with hotend: less than 100 g
  • Mass of moving platform with two hotends: less than 150g
  • Positioning speed: 800 mm/s in all 3 directions
  • Positioning accuracy: 100 steps/mm in all 3 directions
  • Simplicity: fewer than 200 parts (not including washers, nuts and SMD-mounted electronics)
  • Hardware cost: less than $500 USD

Parts

  • Stepper motors: 4x NEMA 17 (plus extruder motors)
  • Timing belt: High-torque GT2 belt (2 mm pitch)
  • Pulleys: 12 groove aluminum (7.6 mm pitch diameter)
  • Filament drive(s): similar to Ultimaker
  • Ball bearings: 8x 608 (skateboard bearings)
  • Linear bearings: 8x LM8UU
  • Smooth rod: 8x 762x8 mm
  • Diagonal rods: hollow carbon fiber rods from kite shop
  • Diagonal rod ends: cheap ball joints used for model race cars
  • Hotend(s): MakerGear 1.75 mm
  • Top and bottom frame: laser-cut plywood

Inspiration

Search YouTube for "flexpicker" or "adept quattro".

Ancestors

http://heliumfrog.net63.net/deltarobot/delta.html

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