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.
Some more details on the drawbot are here.
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.