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I love these little remote controls, this is the same one that I used in the Atari 2600 TV Remote project. Sure with one of these devices you can take control of a TV but the problem is that you are standing there when you do it. With this Automatic Spy TV Remote you can hide the device and have it automatically drive people nuts. It will randomly turn the TV off and change channels! "Sure the original Thinkgeek Micro Spy Remote was fun for a while but there was a major drawback. In order to wreak havoc on someone else’s TV, you had to be within visual range. After a while your prey would realize you had something to do with it. Why not eliminate yourself from the equation entirely? With this hack to the Micro Spy Remote, you can cause chaos even when your not around. Now when the person your pranking asks to see your hands or what’s in your pocket you can simply smile, knowing your secret is safe and the chaos will continue. With this hack you will be able leave the remote in a room and it will turn the TV on or off/change the channel every couple of minutes automatically."
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Metal working is a true art. TheWorkshop.ca has a good demonstration start to finish of a DIY Knife Making build. It shows that making a knife is much more than cutting out a shape and sharpening it. "The blade surface is hand sanded and polished with compound to remove the tinting that resulted from the "Tempering" step. I opted not to use any power tools for fear of building any heat-up on the edge of the blade and again loosing the temper. As shown above the blade is honed with a stone and the file has to have considerable pressure exerted to bite the steel."
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Our mad scientist friend William Beaty demonstrates how you can make a very cold substance which acts like liquid nitrogen in your kitchen. With this creation you will be able to freeze and shatter flowers, grapes, leaves. Basically all of the demonstrations that we have seen done with liquid nitrogen in high school. The only item that you probably will have to leave the house for is some dry ice, but that is usually easy to find at any welding supply store. If you try this experiment please follow the precautions in the video since even although this stuff is not liquid nitrogen it can still be very dangerous. Required Items are:
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We recently featured some of the new hard drive clocks along with some links to some other designs. Turns out we missed one. AP Digital Light created a Hard Drive Clock which is truly a work of art. It uses a PIC18F2320 Microcontroller and a real time clock module from Spark Fun to keep things in sync. The result of his toner transfer method of board etching is about the best I have ever seen. I used to use that method before and never had results as good as he gets. You can see his demonstration video of the PCB making toner transfer method here, it looks like exactly the same method I used except the results are way better. "Brain is implemented on PIC18F2320 running at 40MHz. Upon power-up mcirocontroller reads current time and date from RTC and then refreshes data every hour. Two timers of microcontroller synchronize work of whole device. Timer0 is dedicated to measure time of full disk revolution. This value is used to calculate precise moment for LEDs to turn ON/OFF. Because of that, clock will display correct result regardless of disk RPM. Timer1 is connected to external 32768 Hz crystal and configured as real time clock with period 0.25sec. It’s used to scan keyboard, refresh LCD, and recalculate position of clock hands. Keyboard contains two illuminated buttons. It’s used to set correct time/data and select clock mode. Controller is connected with external world via 8 connectors so unit can be taken apart and reassembled within seconds."
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Matthias Wandel came up with a wonderful solution to making accurate cuts on his table saw. Best of all this system was built from scrap parts from a junk bin. Watch the video to see this cool machine in action. Make sure you check out the rest of his wood working tips, tricks and projects here. "Going through my junk bin, I found a circuit board with 11 power transistors on it that suspiciously looked like it might have been used to control a stepper motor or something like that at some point. Working out the schematic from the traces, it was almost what I needed for my purposes. I cut out the part of the circuit board with the transistors and a few logic chips with a Dremel tool, changed the wiring of the diodes on the board to act as catch diodes, and soldered a printer cable to drive the logic side. Then I started playing around with hooking up stepper motors to that board."
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You may remember the CNC Hexapod Robot that was featured last year. This Robotic Drawing Car doesn’t carve its work but it rather uses a pen to draw. The brain is based on the At mega 16 microcontroller. A schematic and code is available on the site. Engligh translated project. |
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We all hate moving. I can still remember moving a huge metal desk up two flights of stairs when I was living in an apartment. Ever opening from doors to hallways seen to shrink and all of your furniture seems to be twice the size you remembered. What would you do if you were hired to get a Porsche Panamera up to the 94th floor of the Shanghai World Financial Center? I would be thinking that we have an excellent main floor space available that would accommodate the car and event just wonderfully. This team built a special rig that was able to push and tilt the car upright into a freight elevator. They were successful in pulling it off but I wonder if the car is fine after standing vertical for that long, would oil not leak into places that it should not be? Via: Autoblog
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