Check out this 555 Timer Chip Scroll Music Player, it uses scroll that has a bunch of slots cut into it so that metal fingers can selectively touch a contact under it. A rolling system pulls the paper past these fingers and plays music since each contact has a different resistor value connected to a 555 timer. The construction looks great since you can see all of the components.
This Papercraft Lamborghini Aventador shows us that the possibilities of Papercraft are endless! Makes me want to get some sheet metal going to build one that I can drive. “Overall I am very pleased with the final outcome of this experiment. I learned many new lessons and the artwork makes a great display on my wall. The completed model measures 8′ x 3.8′ x 2.1′ (627 x 244 x
If you have an unlimited budget this stair lighting system by Calum Gregge is amazing. Using RGB LEDs on this system combined with some creative light sequencing sure does look impressive.
Stuart Kerr sent in some details about their Bitcoin-Operated Pool Table. With Bitcoin getting more traction as time goes on I think we will start to see more systems like this game that will accept bitcoin as an option. “Basically we’ve made a pool table where payment can be made by Bitcoin instead of (well actually as well as) cash! It works pretty well, with a Raspberry Pi controlling
If you have a laser cutter or CNC machine you probably have a Cable Carrier Chain (or want one). They are quite expensive but with this DIY Laser Cut Cable Carrier Chain project you can simply make your own if you have a laser cutter. Martin Raynsford wanted to add one to his laser machine but didn’t have the time to wait for one to be mailed. You can
 ScratchBuiltAircraft had some extra parts laying around and decided to slap together a quick RC Hovercraft. It looks very controllable even though the control system is a simply small serve that deflects the air. Looks like the heavy duty garbage bag does a good job and sure keeps the cost down!  “Electronics: 70mm EDF 60amp ESC 1x 9gram servo 4cell 3000mah LIPO Battery Deans extension Turnigy 9x  TX/RX
 The prize this week is an 6V 0.6W Solar Cell. This contest will run for one week (August 31 – September 6, 2013). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing. Please do not give the answer in the comments. Send an email
