http://www.instructables.com Sat, 25 May 2013 07:16:41 PDT BLOX v1.01 http://www.instructables.com/id/Simple-Light-Switch/
Simple Light Switch - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F4N/X984/GPBDHPZK/F4NX984GPBDHPZK.SQUARE2.jpg http://www.instructables.com/files/deriv/F4N/X984/GPBDHPZK/F4NX984GPBDHPZK.SQUARE.jpg http://www.instructables.com/files/deriv/F4N/X984/GPBDHPZK/F4NX984GPBDHPZK.SMALL.jpg randofo In building Simple Bots, we are going to use a series of photo-coupled devices called modules. But, before we can do this, we need a good photo-couple to use as a light-activated switch. To make one of these switches, we will be using a special OSRAM-brand photo transistor and any standard NPN trans...
By: randofo

Continue Reading »]]> Mon, 30 Apr 2012 16:05:46 PDT http://www.instructables.com/id/Parallel-Port-3-Axis-CNC-Driver-Opto-Isolated/
Parallel Port 3 Axis CNC Driver, Opto-Isolated, Unipolar Steppers - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FDE/DVL4/H3QEXGNE/FDEDVL4H3QEXGNE.SQUARE2.jpg http://www.instructables.com/files/deriv/FDE/DVL4/H3QEXGNE/FDEDVL4H3QEXGNE.SQUARE.jpg http://www.instructables.com/files/deriv/FDE/DVL4/H3QEXGNE/FDEDVL4H3QEXGNE.SMALL.jpg ChromationSystems Controls 3 Unipolar Stepper Motors, for use with CNC Machines. Simple driver with automatic coil  shutdown, to ensure efficient operation.  Opto-isolated for protection of the P.C. Supports most parallel port based CNC software, such as KCAM. Supports up to 20 watts per Phase. Or 2 Amps per phase....
By: ChromationSystems

Continue Reading »]]> Thu, 4 Mar 2010 22:11:58 PST http://www.instructables.com/id/Double-lens-reverse-macro-for-an-SLR/
Double lens reverse macro for an SLR. - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FQE/9UH7/FZWXP7NB/FQE9UH7FZWXP7NB.SQUARE2.jpg http://www.instructables.com/files/deriv/FQE/9UH7/FZWXP7NB/FQE9UH7FZWXP7NB.SQUARE.jpg http://www.instructables.com/files/deriv/FQE/9UH7/FZWXP7NB/FQE9UH7FZWXP7NB.SMALL.jpg Dwain77 I've entered this into the Digital Days contest and I'm a finalist.  The voting part of the contest is now over, but I'd still love it if you'd rate my instructable. This instructable will show you how to get quality macro shots at a high magnification. The best part is you don't even have to have ...
By: Dwain77

Continue Reading »]]> Thu, 24 Sep 2009 17:26:56 PDT http://www.instructables.com/id/How-To-Make-A-Headphone-Coupler/
computer speaker surround sound How To Make A Headphone Coupler - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F1S/TE6N/FSLF821P/F1STE6NFSLF821P.SQUARE2.jpg http://www.instructables.com/files/deriv/F1S/TE6N/FSLF821P/F1STE6NFSLF821P.SQUARE.jpg http://www.instructables.com/files/deriv/F1S/TE6N/FSLF821P/F1STE6NFSLF821P.SMALL.jpg charlie millionaire If you want to connect your computer speakers to your tv for surround sound you will need a headphone coupler or a rca to female headphone cord. I already had a rca to male headphone adapter so I decided to make a headphone coupler. You will need the following: 1. Headph...
By: charlie millionaire

Continue Reading »]]> Sun, 22 Mar 2009 14:35:56 PDT http://www.instructables.com/id/Build-your-own-intercom-or-walkie-talkie-out-of-tw/
Build your own intercom or walkie talkie out of two old cordless phones - More DIY How To Projects]]> http://cdn.instructables.com/FBT/63RY/41KEP28245G/FBT63RY41KEP28245G.SQUARE2.jpg http://cdn.instructables.com/FBT/63RY/41KEP28245G/FBT63RY41KEP28245G.SQUARE.jpg http://cdn.instructables.com/FBT/63RY/41KEP28245G/FBT63RY41KEP28245G.SMALL.jpg RTourn We all have old phones. Why not turn them into an intercom for your kids tree house. Or turn two old cordless phones into home base walkie talkie. Here is how. Materials In-Line coupler (I got mine at Frys for 1.49) 9 volt connector (radio shack, or cut it out of some old piece of junk) wire-ni...
By: RTourn

Continue Reading »]]> Wed, 21 Jun 2006 18:36:23 PDT