Workshop 88 joined many other makers at the River Forest Public Library’s first Maker-Fest on 10/7/17. The Drawbot got lots of attention, and decorated the shelves with its drawings.
While maker events and makerspaces are a growing phenomenon at libraries, and River Forest has considered what it can do, its beautiful old building just doesn’t have room for a space. But Ethan Baehrend, as part of his Eagle Scout mission, encouraged the library to host this Fest, both to provide a maker event for area residents and to help the library gauge interest so it can best serve its users. The event was a success on all fronts.
Ethan posed here for a picture with the Drawbot’s rendition of the Eagle Scout logo. Thanks to his mom, Diana, for the picture!
The Drawbot was in good form with its new aluminum-and-teflon pen holder, and generated lots of artwork, as well as interest among visitors. Here are some pics of its output.
Workshop 88 had a table at the Southland Mini Maker Faire in Mokena on 8/22/15. Jim’s drawbot string plotter made a “big” hit, standing 6 feet above the table and drawing poster-size images.
The drawbot, a junkbox project inspired by Bill Paulson, is driven by a couple of $3 steppers from American Science and Surplus, some cheap H bridges and an Arduino clone. Software is free from Makelangelo.com. It does the heavy lifting math to convert from X-Y coordinates to the “inches of string” coordinates the polar geometry imposes on its steppers. In addition to accepting normal X-Y gcode, it can take a jpeg image and use the traveling salesman algorithm to generate a single path reflecting the darkness of different areas in the image as it’s doing in the picture above. Such a path is ideal for a plotter that doesn’t have pen lift capability. Yet.