RoboSketch : Hack-a-Day logo

My RoboSketch machine drawing the Hack-a-Day logo. I used the bitmap-to-vector function in one of my CNC programs to convert the logo to an outline, then told the CNC program to generate a cutting path for it. I wrote a small C++ app to translate the coordinates from the generated path to the size & format needed for RoboSketch, and this is the result.

RoboSketch is an off-the-shelf Etch-a-Sketch fitted with a a new face plate & gears cut on my home-built CNC router.

The electronics consist of a pair of small stepper motors and a Propeller proto board from Parallax. The only additional component used was a darlington transistor array chip to switch power for the motors.

You can download the source code for RoboSketch from the Propeller forum over at Parallax here: http://forums.parallax.com/showthread.php?133457-RoboSketch-Propeller-control...

The software controlling RoboSketch basically allows you to move the "pen" anywhere within an 800 x 600 rectangle, and includes compensation for the slop when changing direction (also known as backlash).

Category:

Science & Technology

Tags:

• etch-a-sketch
• Parallax
• propeller
• electronics
• DIY
• gadget
• technology
• robot

[TheLonetreecreations]

Super cool man!

[savagecircuits]

Very cool!