Goal

A drawing robot.

• Hangs on wall
• Portable
• Prints B-size paper
• Stand alone operation
  1. Print from SD Card
  2. Use LCD Display with Encoder
• Open source
• Use craft paper roll and sheets
• Use common OTC pens

Approach

• Start with rough prototype
• Use easily attainable hardware
• Start with exisiting design for hardware and software.
• Tweak design until goals are met or believed to be met in next major revision.

Future

• Automatic Pen Changer
• Automatic Paper Feed
• Custom PCB designs

Starting Configuration

Mechanical

• Drawing Robot - Arduino Uno + CNC Shield + GRBL by henryarnold May 27, 2017 on Thingiverse

• Idler Pulley for 624 Bearing and GT2 belt by peaberry July 07, 2017 Thingiverse

• Heavy Duty Pen Slider by Jonathan_K1906 February 04, 2018 Thingiverse

• LM8UU Linear Ball Bearings, 8mm Bore Amazon

• 8mm x 500mm Case Hardened Chrome Plated Linear Guide Amazon

• Stainless Steel Rod (3mm x 150mm) Amazon

• GT2 Timing Belt and Pulleys Amazon

• M3 and M4 Hardware and Wood Screws (Various)

• 26" x 26" x 3/4" MDF sheet

Electrical

• BIQU 3D Printer Part Tango V1.0 Control Board From Amazon
• KINGPRINT 12864 LCD Graphic Smart Display Controller Board Amazon
• BIQU A4988 Compatible StepStick Stepper Motor Divers Amazon

Firmware

• Marlin 2.0.5.3 WebSite and Github