I'm working on building a DrawBot similar to Sandy Noble's awesome Polargraph. http://vimeo.com/24647023
My goal is to use a spool for monofilament line, rather than a beaded cord. This spool is designed to press-fit together on a piece of monofilament line and then press-fit the spool onto the stepper motor shaft.
- Adjust the SCAD file as necessary
- Print the STL
- Press fit the spools together - with a piece of monofilament line stuck into the notch of the spool bottom
- Press fit a spool on each motor
You can follow my DrawBot build log progress on my site: