praybot

My solar prayer wheel.

PrayBot 2007 photo

Submitted by tw on June 21, 2007 - 8:27pm
PrayBot 2007 photo

The finished unit, running on The Ithaca Commons. More photos are in the gallery.

Solstice 2007

Submitted by tw on June 21, 2007 - 8:26pm

PrayBot 2007 photo

For the Summer Solstice this year, I refined last year’s PrayBot project by making it more efficient and robust, and again had it running in our city center at noon. The weather cooperated, and so did the gadget, and the people were great. Success! read more...

PIC-based solar engine (PICSE) 2007

Submitted by tw on June 17, 2007 - 8:47pm

My PrayBot project last year needed a “solar engine,” and the quickest thing I could come up with was based on a PIC instead of the more usual BEAM-style solutions. This year I wanted something more efficient. But it still ended up with a PIC, and it’s much more efficient than any of the BEAM designs I’ve tried. read more...

PrayBot deployed

Submitted by tw on June 21, 2006 - 2:38pm

With a few new ideas for the last mechanical bits having arrived during my shower this morning, and a subsequent frenzy of Dremeling and hot-glueing, the PrayBot was in place and functional for the start of Summer! read more...