Monthly Archives: June 2014

Printer on Wheels

Posted on June 9, 2014 by robertwilkie

Clever idea, the author wanted to print on different media but not use an industrial printer, so the author converted a canon inkjet printer to have wheels instead of a paper feed. http://www.instructables.com/id/PrintO-Bot/

Posted in Cheap, Misc-Life, robots | Comments Off on Printer on Wheels

Build a PWM tester

Posted on June 9, 2014 by robertwilkie

This is going on my list of things to build.  The author built a simple Pulse Width Modulator tester with an ATiny, a pot, and a few other misc parts.  Well worth doing.  I wonder if someone will build/sell the … Continue reading →

Posted in Arduino, Cheap, My Projects | Comments Off on Build a PWM tester

Make a filament spool holder with PVC

Posted on June 6, 2014 by robertwilkie

Why waste plastic and have one print out when you can build a pretty sturdy one out of PVC (and its cheap).  Author used 1.5 inch PVC pipe, 4 elbows, and 2 endcaps.  About $8 in parts. http://www.thingiverse.com/thing:69834  

Posted in Cheap, CNC/3D-printing, Tools | Comments Off on Make a filament spool holder with PVC

Xerox Services can’t catch a break

Posted on June 6, 2014 by robertwilkie

Now it sounds like they are in trouble in Florida with a bus/train software integration.  End result, Xerox needs to deliver the software/hardware for the buses (working) and will pay a fine for the delays. http://www.wftv.com/news/news/local/problems-delay-sunrail-lynx-bus-confirmation-syste/ngFTg/

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Realtime with Linux

Posted on June 6, 2014 by robertwilkie

Nice video about using an RPi with linux and managing a stepper.  My 2 cents, you are better off using a real RTOS as from the list below. http://www.isy.liu.se/edu/kurs/TSEA81/lecture_linux_realtime.html http://en.wikipedia.org/wiki/List_of_real-time_operating_systems

Posted in Linux, Misc-Life, RaspberryPi | Comments Off on Realtime with Linux

Bro – Opensource Network Analyzer

Posted on June 6, 2014 by robertwilkie

Stumbled on this while reading on some updates on SNORT.  It looks interesting, its a passive analyzer and has a good feature list.  Worth looking at in the future. http://www.darknet.org.uk/2014/05/bro-passive-open-source-network-traffic-analyzer/ https://www.bro.org/

Posted in Cheap, Security | Comments Off on Bro – Opensource Network Analyzer

Simple and Cheap IR receiver for arduino

Posted on June 6, 2014 by robertwilkie

Interesting hack using an LED and resistors.  Not sure how effective it is. http://dangerousprototypes.com/2014/06/01/poor-makers-ir-receiver-2/ http://www.analysir.com/blog/

Posted in Arduino, Cheap | Comments Off on Simple and Cheap IR receiver for arduino

Print a scope mount for your BB gun

Posted on June 6, 2014 by robertwilkie

OK so your kid has mastered the BB gun, time to teach them about scopes without having to use a bullet based guns (and try and find 22 ammo for sale).  Just print out a mount for it and use … Continue reading →

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Print out a cap for PC fans to make a personal fan

Posted on June 6, 2014 by robertwilkie

I liked this idea, you print out a cover that directs a PC fan so you can use it as a personal one. http://www.thingiverse.com/thing:352471

Posted in CNC/3D-printing | Comments Off on Print out a cap for PC fans to make a personal fan

Build your own saltwater flashlight

Posted on June 6, 2014 by robertwilkie

I never thought about using salt water for powering LED’s.  Good idea.  The author took pennies, aluminum foil, tissue paper, and later on a Joule Thief.  Nice build. http://www.instructables.com/id/Water-Powered-Flashlight-v2/

Posted in Cheap, Teaching and Learning, Tinkering, water | Comments Off on Build your own saltwater flashlight