Category Archives: Tinkering

Build a wave tank generator

Posted on January 17, 2017 by robertwilkie

Great way to show kids how waves affect shapes, or show waves in general.  Looks liek a pretty simple build too. http://www.instructables.com/id/Arduino-Wave-Generator-Tank/

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A cheap CNC build

Posted on January 13, 2017 by robertwilkie

OK I know there are alot of these out there.  What makes this different is the lead screw and brass nuts used are under $10.  I haven’t looked at getting that stuff from banggood.com before.  But I may this time.  … Continue reading →

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Converting a CNC to use arduinos

Posted on January 13, 2017 by robertwilkie

There are alot of  old CNC’s out there that this maybe a good way to “upgrade” them.  In the 1990’s CNC for metalworking where coming of age, problem was most of them never got updates, so they are still running … Continue reading →

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Make an opensource pellet cutter for filament

Posted on January 13, 2017 by robertwilkie

I like this build, the author basically feeds leftover filament, or string from bottle, into the build and its shreds the material into pellets that could then be reconverted into filament.  Me….I am thinking of an easier solution/build. http://www.instructables.com/id/3D-Printed-Open-Source-Multi-Material-CutterPellet/

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Add a Needle cutter to your CNC

Posted on January 13, 2017 by robertwilkie

Basically this is a CNC sewing machine.  The author added a motor that drops a rod up and down (the needle) really fast to cut foamboard.  Its a good idea thought you won’t get as nice of a cut as … Continue reading →

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Make a $5 POV sign

Posted on January 2, 2017 by robertwilkie

Now if he had used an ESP so it could be programmed wirelessly too…. Either way this is a pretty nifty build. http://www.makeuseof.com/tag/make-pov-led-air-writer/

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PoisonTap

Posted on December 30, 2016 by robertwilkie

Interesting use of a RPi Zero. The $5 PoisonTap quickly, completely hijacks even a locked computer’s internet

Posted in RaspberryPi, Security | Comments Off on PoisonTap

Cute little CNC you can print out

Posted on December 29, 2016 by robertwilkie

Most of the parts are small enough to do on a small 3D Printer, add some motors, controller, and dremel and you are good to go. https://github.com/carlosgs/Cyclone-PCB-Factory/wiki

Posted in Arduino, Cheap, CNC/3D-printing | 1 Comment

Simple tutorial on using RetroPi for Raspberry Pi

Posted on December 28, 2016 by robertwilkie

Got an extra RPi and an old monitor with a controller.  Make a retro game controller out of it. http://www.technobuffalo.com/2016/12/14/how-to-make-raspberry-pi-retro-gaming-machine/

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Build a jig to bend headers for Arduinos

Posted on December 27, 2016 by robertwilkie

This is just too funny, you can 3D print out this jig to use to bend pins so that everything fits from a pref board to an arduino. Make Your Own Arduino Header Pins Get it here http://www.thingiverse.com/thing:1920037

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