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Start the playlist: http://www.youtube.com/watch?v=kO7JLxFfojg&feature=bf_prev&list=PLF35B1F0F281C4E79&t=10s

Here’s a special playlist of Becky’s favorite crafty Maker Faire videos of 2011:

Neon Art Shop: http://www.youtube.com/watch?v=kO7JLxFfojg&list=PLF35B1F0F281C4E79&index=2&t=10s

Free Motion Embroidery: http://www.youtube.com/watch?v=RuvCCRnOchQ&list=PLF35B1F0F281C4E79&index=3&t=10s

Rainbow EL-Wire Glasses: http://www.youtube.com/watch?v=f0_XOOqHn0Q&list=PLF35B1F0F281C4E79&index=4

Cyberoptix TieLab: http://www.youtube.com/watch?v=estPhyfBGho&list=PLF35B1F0F281C4E79&index=5

Secret Noodle Truck: http://www.youtube.com/watch?v=O2n-igdyk2s&list=PLF35B1F0F281C4E79&index=6

Machine Knit Cosby Sweater: http://www.youtube.com/watch?v=iiTTrT29HI0&list=PLF35B1F0F281C4E79&index=7

Classroom Hydroponic Garden: http://www.youtube.com/watch?v=pJ9qe01RN60&list=PLF35B1F0F281C4E79&index=8

Cyclocarder: http://www.youtube.com/watch?v=RSmSVI87zI4&list=PLF35B1F0F281C4E79&index=9&t=10s

Xylocopa Design: http://www.youtube.com/watch?v=8RbX3-Znsys&list=PLF35B1F0F281C4E79&index=10&t=10s

Mapbag: Josh Billions: http://www.youtube.com/watch?v=oP3GNCVHG1g&list=PLF35B1F0F281C4E79&index=11&t=10s

Typefacebook: http://www.youtube.com/watch?v=9dL8QyTJ4kA&list=PLF35B1F0F281C4E79&index=12&t=10s

Yes and Yes Designs: http://www.youtube.com/watch?v=zAbBaTywC9M&list=PLF35B1F0F281C4E79&index=13&t=10s

This is the fourth installment of my series on building the MakerGear Mosaic 3D printer. This part wraps up assembly of the Cartesian robot with the Z-axis mechanics, including installation of the two precision ground linear rails and the PTFE-coated lead screw. Each week, I keep expecting that this will be the stage of the build where it starts to get difficult, tedious, and/or fiddly.

There are “geometric analogies between natural assembly of proteins and viruses” and these polyhedra.