W88 at River Forest Maker-Fest

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.

 

At Southland Mini Maker Faire

W88Table3412Workshop 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.