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Category Archives: Tinkering
A robotic arm for 3D printing
Interesting build where the author’s used a robotic arm to print out houses. In this case for emergency shelters for folks. My 2 cents, I like the idea if it used cement, but I think the portable shelters I have … Continue reading
Posted in CNC/3D-printing
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How to learn Swift for free (or almost)
So thinking of writing an app for your iPhone, you may want to brush up on how to write code in swift, Apples reality new programming language. The article below goes over several free, or cheap sites that can help … Continue reading
Posted in Cheap, Software Development
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Cheap motorized turntable
Nice simple and cheap build for a motorized turntable. This could be a good adaptation to convert into a 3D scanner too. http://www.instructables.com/id/Motorized-Display-Turntable-for-12/
Posted in Cheap, CNC/3D-printing, robots
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Interesting swamp cooler build
This build is interesting since the author has a re-usable cooling source, popicles in plastic. Why? Well the fan does the standard stuff of blowing on the ice, and out comes the cool air from the bottom (instead of the … Continue reading
Google opensources a bluetooth beacon protocol
Interesting, Google put out a open-source bluetooth module for creating bluetooth beacons called Eddystone. I know Apple tried this a few years back. But…now we have bluetooth low energy, and this is “free” to build on. So….It could go somewhere. … Continue reading
Posted in Cheap, Software Development
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How to pull the wifi password off a computer
This is worth bookmarking. Have you forgotten that ultra complicated wifi password you setup, well here are some ways (have to run as admin or sudo depending on the system) to get it from the computer. Linux security find-generic-password -ga … Continue reading
Nice build to convert old CDROM drives into a laser engraver
I have seen these builds before, but not as nice looking as this one. All stuff you print out for the build too. http://www.3ders.org/articles/20150709-thingiverse-user-creates-an-amazing-3d-printed-photon-laser-engraver.html
Posted in Cheap, CNC/3D-printing
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Tutorial on the NRF24L01 2.4 Ghz transmitter
I wanted to bookmark this write-up cause these boards are cheap, and a good way to add wireless comm’s to an arduino project. BUT…not alot of good info out there about them. http://www.instructables.com/id/Wireless-Remote-Using-24-Ghz-NRF24L01-Simple-Tutor/
Oh this is going on my todo list, pool pressure sensor
On of the many items I work on is automating my pool. Right now everything is open loop, so I have no feedback on if anything is working or not. Not so sure I would use zigbee for communication, but … Continue reading
Simple tutorial on controlling a DC motor with an arduino
Good write up, only thing it drives the motor one way only. 🙂 http://www.instructables.com/id/How-to-drive-a-DC-Motor-with-Transistor-Arduino-Tu/
Posted in Arduino, Teaching and Learning
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