A WaterColorBot Water Clock

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We built a evaporating-hand water clock using a WaterColorBot fitted with a Buddha Board. The Buddha Board is a black board with a gray ceramic coating that becomes transparent when wet, so you can paint on it with plain water to make black marks that disappear as the water evaporates.  (And, it fits nicely in a WaterColorBot with the appropriate jig.)

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As a clock, once a minute it draws the minute hand, then the hour hand, and finally the outline of the clock face.

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As the water evaporates over the course of a few minutes, the old minute hands fade away. It’s a neat effect.

And of course, video:

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Maker Faire Bingo

With Maker Faire coming up next week, @techninja42 suggested that Maker Faire Bingo would be a great way to get ready! With the help of some friends, he put together a site where you can grab a bingo card to play during your visit to Maker Faire. We tried it out with the WaterColorBot, but you can use your preferred automated printing method to make your own, or maybe even find a robot at Maker Faire to draw it for the ultimate Maker Faire Bingo!

Send your maker bingo suggestions to @mfbingo for inclusion in the bingo card generator.

Help wanted: RoboPaint

James “techninja” Todd writes that a few more hands might be helpful on the RoboPaint project:

RoboPaint is an open source app for controlling painting/drawing robots, made for my daughter’s award winning Open Source WaterColorBot! The project is taking off with lots of users and lots of great features, and is all written in web standards node-webkit to run on all operating systems.

Interested? Sign up to help out at http://www.doerhub.com/for/robopaint

 

A Compendium of Watercolor Paint Pan Palettes

sargent art paint palette

As part of the documentation for the WaterColorBot project, we’ve put together a compendium of information about commonly available watercolor paint palette sets.  For each of the sets, we’ve tested to see how well they work in the WaterColorBot— in terms of physical size, color order, paint quality, brush quality, and so forth.

You can find the complete list on our documentation wiki site, here.

WaterColorBot kits: In stock, and new accessories


We’re very pleased to announce some updates on the WaterColorBot project— the watercolor-painting pen plotter that we designed in collaboration with Super-Awesome Sylvia.  First and foremost: kits are (finally!) available from stock at our store, now that we’ve finished shipping the rewards from our Kickstarter campaign and our other pre-orders.

We’ve also been working on a host of new applications and accessories that we’ll be writing about in the near future. The first new accessory is the Buddha Board holder pictured above, which indexes a Buddha Board (overly-interactive website link / Amazon.com link), that lets you make temporary paintings with just water.   We’ve found the Buddha board not only to be one of the best tools for trying out new things on the ‘bot (without using up paint and paper) but also to be great for live demos of the WaterColorBot, so that you don’t need to provide a fresh sheet of paper for everyone that tries it out.  You can find it in our new index of WaterColorBot accessories.

The Winch Cutting Jig

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In our recent article, The Making of the WaterColorBot, we walked through the manufacturing process of the WaterColorBot, in which we make use of a number of specialized jigs, with varying levels of complexity.  We also left a teaser:

“The winch is also assembled from laser-cut wooden parts. The lower part has the shaft collar that mounts to the motor shaft, and the upper part has two halves that disassemble for cord management. It turns out that the winding-drum part of the winch needs to be quite round and concentric with the motor shaft for smooth operation– smoother than we can get with the laser. We solve this with our very-most-complicated assembly jig….”

And here it is.
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