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NYC Resistor » Electronics, Hacking, Classes, and Workspace.

NYC Resistor » Electronics, Hacking, Classes, and Workspace.
It is a truth, universally acknowledged, that an engineer in possession of an antique computer must be in want of hacking it. Last year I reverse engineered the Easter Egg photographs from a Mac SE that I found on the side of the road and that machine has been sitting idle since then, so I took inspiration from NYCR founder Dave Clausen’s six year old 24th anniversary Mac project and turned my old SE into a “30th anniversary Macintosh” with a new ARM motherboard running Linux. Unlike Dave, I was able to interface with the original 9″ CRT thanks to the programmable hardware in the Beaglebone Black. The CRT was still in good shape and the m68k motherboard would startup (although we have no media or OS for it) so it was fairly easy to reverse engineer the pinout and waveforms for the combination power-supply and video connector.

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Getting label glue off glass? - DIY - do it yourself - Andy, We live in Phoenix, so completely understand your point about conserving water. For what it's worth, you can reuse any bin of water to soak a bottle, if you're just trying to remove a label. It's just the moisture from the water you're after. Then, the bottle can just be washed with the other dishes. New <em>Daybreak</em> AT&T commissioned short film features Nikola Tesla Daybreak film segment featuring a model of Tesla'sWardenclyffe Tower Joe Kinney, Senior Project Engineer of the New Yorker Hotel, contacted me recently to inform me of a new short film featuring Nikola Tesla. The film was produced by Ridley Scott Associates and was commissioned by AT&T to promote their mobile technology. The plot of the story revolves around the main character's attempt to unravel the mysterious death of his father who was on the verge of discovering the secrets of Tesla's wireless power transmission. The film is action-packed and very interesting. It features a hidden Tesla laboratory (who knew Tesla had spun aluminum toroids?)

3D printing's first copyright complaint goes away, but things are just getting started More news on the first-ever DMCA threat for violating a copyright in a 3D object -- Ulrich Schwanitz has rescinded his complaint and will release his shape into the public domain today. Here's a summary for those of you who missed it: last week, Ulrich Schwanitz figured out how to print the "impossible" Penrose Triangle," a well-known optical illusion. He released a video of the shape and challenged others to see how it might have been done. 3D modeller Artur Tchoukanov promptly figured it out, designed a 3D shape that accomplished the same thing, and uploaded his shape's specifications to Thingiverse, a repository for 3D designs. Then I came along and missed the fact that there was a challenge underway, and erroneously credited Artur Tchoukanov with creating the shape. Schwanitz sent me some emails asking for correction, but they arrived while I was away from the Internet at a conference, so it was a few hours until I updated.

Desk with Meters I designed this desk to get all my computer equipment and cables up off the floor, behind cabinet doors, and leave my work surface completely clear. A major part of this project was also incorporating the analog meters which show my computer’s status. The desk is built mostly from modified IKEA parts (see the end for a complete parts list). There are wall-mounted cabinets in two depths. Top 10 Essential DIY Skills That Aren't as Hard as You Think I think it depends on your definition of "maintenance." I wouldn't hesitate to change my own oil or something like that but I wouldn't dream of replacing a radiator myself. That isn't my idea of "maintenance." "Spaghetti" IP Cam / Arduino Motion Detect Sprinkler Posted by Phil Tucker on June 17, 2012 After a neighbourhood dog decided my front lawn was a fantastic place to poop on and his owners decided that they don’t care for bylaws I set upon finding a solution. Sure you could try cayenne pepper, mothballs, ammonia or even marking your own territory (take that!) but I already had an IP camera monitoring my front yard for security purposes, so I figured I’d just hook up an Arduino and a sprinkler valve. This yard defense solution has two added benefits, it keeps my lawn healthy (I can set up timed watering through this system) and it sends offending dogs home stinkin’ wet.

Reflector Tech - Fab Lab wiki From Fab Lab wiki Basic Science, Simple Solutions Reflector Shape FabFi reflectors use the properties of parabolas to focus the RF energy of the WRT54GL router into a narrow beam that can go long distances. (see the Tech Summary for an explanation of how this works). Interface with Remote Power Sockets – Final Version « Rayshobby In previous blog posts, I’ve described two ways to use an Arduino to interface with an off-the-shelf remote power sockets / switches. The first method uses transistors to simulate button presses. It involves some soldering and hacking the remote control unit. The second method uses an oscilloscope to sniff the signal sent by the remote control, and then simulates the same signal using an RF transmitter. But what if you don’t have an oscilloscope, or don’t know where to place the probe to take the measurement?

RUBBER WOOD GEARS (RECYCLED ) - by kiefer This is a true reuse recycle project which will come in handy for some future projects .The gears as you see them are made from two layers of 3/4” plywood glued together and a strip of timing belt from a car engine that was going to the garbage .The timing belt is bonded with GORILLA SUPER GLUE to the plywood hub .These are some pics of how I made them .I rough cut the discs on the band saw then sanded them to size checking the fit by wrapping the belt around the disc and sneaking up to the perfect fit .I cut off a short section of the belt as a alignment piece and clamped at the joint . The application for this according to my grandsons are for wheels on a tractor and on and on.I can see this as a router lift application and a box joint jig indexing device .I would like your thoughts on this and welcome any comments .Have fun with this me and the boys sure have . Kiefer

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