NextFab Blog

Weekly Staff Picks June 3, 2012

Posted by admin

Jun 3, 2012 10:20:15 AM

Tiny Chip Inserted in the Sole of a Shoe Can Charge the Wearer’s Cell Phone   Say what?   Charge your cell phone as you walk?   It’s the future, indeed. - Christine

Paradoxical gears have a complex shape with multiple lobes that exert pressure on the lobes of meshing gears, allowing for some interesting behavior.   These gears are often called “paradoxical gears” due to the fact that in some configurations, all of the gears rotate in the same direction (it’s easier to see in the videos than to explain in words).   The original design is credited to a Renault engineer named Mercier (the gears were needed for the torque-limiting Mercier differential).   Perhaps the most impressive thing is that such complex shapes were designed before the advent of modern CAD/CAM, most likely through the solving of some very complex equations.   [Bonus link - print your own paradoxical gears!] - Alex

Progressive Cavity Pump   An interesting wikipedia article about a type of pump most people may not have heard of.   The design uses two fairly complex shapes, one which rotates eccentrically inside of the other one.   This particular design is useful for applications which require either a consistent flow rate, or liquids/slurries that require low levels of shear stress. - Alex

The Return of the Vacuum Tube   The New Vacuum Tubes. - Gregg

Colossal   A cathedral made of lights - Brandon

Topics: gears, nfs, alternative-energy, vacuum-tube, Uncategorized, cell-phone, nextfab, pump, led

Weekly Staff Links, February 5th

Posted by admin

Feb 5, 2012 10:09:00 AM

February 5 Links

The Creators Project   Interactive still-lifes (lives?). - Brandon

SolidSmack Gear Generator   “The Gear template generator from is a magical web-based tool (probably) using little wooden mathematical gears on the back end to output a 2D downloadable file, that you can also print, slap on a piece of cardboard, plywood, acrylic or other material and cut out.” - Alex

Dirty Money from Slate   An interesting perspective on how the US and other countries can reduce our need for fossil fuels through better policy. - Seth

Math House   This playground would make any kid get excited about math!   Hidden in the suburbs of Charlotte, NC, Bob Sebrosky has been building a mathematical wonderland in his backyard for the past 10 years. Awesome. - Christine

The Edge Factor Show   It’s a design contest for mechanical engineering and design students - $40,000 in cash prizes plus winner is featured in 3D HD video program. - Evan

Topics: gears, 2d, math, fossel-fuel, Uncategorized, design-contest, interactive-art, nextfab, cnc Newsletter

Posted by admin

Jul 22, 2011 1:56:17 PM

Here is another newsletter for those of us interested in RC, robotics, process design and automation.   See it here.   I’ve just been introduced to this one, but it looks good.   There is a link on their page to subscribe if you wish.   

Topics: gears, rc, process-design, robotics, Uncategorized, servos, automation, robots


About this blog

Welcome to the NextFab Blog, where we discuss the ideas changing the world as we know it. Step inside the revolutionary world of 3D Printing technology, traditional and Computer Numeric Controlled (CNC) machinery, innovation and imagination.



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