Hacked Gadgets Forum

August 6, 2014

Vintage Precision Power Supply Teardown

at 6:34 am. Filed under Insane Equipment

 

Our friend Dave from the EEVBlog took apart this Vintage Precision Power Supply. With a quick look at the front panel you might think this is something that you would have got from Radio Shack 40 or 50 years ago for your hobby kit but this is a 0.001% precision power supply! It was designed by Power Designs Inc of New York back in 1964. When you see the internals you will see lots of point to point wiring which was popular back in the day, these days you only generally see point to point components bodged onto cheap Chinese equipment. The condition of the internals is very clean considering the age of the device! Unfortunately a simple adjustment of the trim pots wasn’t enough to calibrate it. I am assuming that some of the crusty old caps are desperately needing replacement.


July 26, 2014

How OSB is Made

at 7:35 pm. Filed under Insane Equipment

 

We use OSB (oriented strand board) for many building projects these days as plywood is getting more expensive. The process of how it is made is quite interesting.

“Oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives (95% wood, 5% wax and resin). The layers are created by shredding the wood into strips, which are sifted and then oriented on a belt or wire cauls. The mat is made in a forming line. Wood strips on the external layers are aligned to the panel’s strength axis, while internal layers are perpendicular. The number of layers placed is determined partly by the thickness of the panel but is limited by the equipment installed at the manufacturing site. Individual layers can also vary in thickness to give different finished panel thicknesses (typically, a 15 cm layer will produce a 15 mm panel thickness). The mat is placed in a thermal press to compress the flakes and bond them by heat activation and curing of the resin that has been coated on the flakes. Individual panels are then cut from the mats into finished sizes.”

 


May 30, 2014

Automatic Fire Fighting Foam Solutions

at 10:06 pm. Filed under Insane Equipment

 

Aircraft hangers are usually very large simple buildings that house millions of dollars worth of airplanes. A small fire can quickly damage the contents of the building. Fuel storage containers are pretty scary when they burn out of control. The key is to have a fast reaction to fire and hit it with an effective suppression material. These videos are interesting due to the large scale. I think they could rent out some of these hangers out as after hours foam rave clubs. :)

 

 

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March 10, 2014

Ping Pong Robot

at 10:28 pm. Filed under Complex Hacks, Cool Gadgets, Crazy Hacks, DIY Hacks, Insane Equipment

 

 If you hate when you don’t have a partner to play ping pong with you why not build a robot. Ulf Hoffmann is an industrial mechanic and has some creative ideas. His Ping Pong Robot (translated) is quite amazing, you can see it in action above. The videos below demonstrate the building blocks to get to where the robot is today.

Via: Laughing Squid

 

 

March 9, 2014

Drone with a 80KV Stun Gun

at 9:46 pm. Filed under Insane Equipment, What Were They Thinking

 

When you get tired of flying a regular hexcopter why not kick things up a notch and install a stun gun on the thing to protect your property!

“In the video above, CUPID (short for Chaotic Unmanned Personal Intercept Drone) takes down an intern. He doesn’t get up with ease.”


March 6, 2014

How the Fadecandy LED Controller is Made

at 5:47 am. Filed under Complex Hacks, Insane Equipment

 

Adafruit recently took on production of the Fadecandy project that Elizabeth Scott developed. The video above is How the Fadecandy LED Controller is Made using the automated PCB production machines. There are 3 basic machines in the equipment path, the panelized PCB goes through a solder paste machine where a laser etched stencil is used to put solder in just the right locations. The board is then moved through the pick and place machine where all of the components are automatically placed, and finally it rolls through a reflow oven where all of the parts are permanently soldered in place. Only thing to do after that is snap the board off and plug it into a test jig.

February 26, 2014

DIY Four-Terminal Kelvin Sensing Connection

at 11:41 pm. Filed under Insane Equipment

 

If you are taking very low resistance measurements you have a few options. Many meters have a low ohms mode where you are able to zero out the meter resistance but the best method is using a Four-Terminal ohm meter and appropriate connection. In the video above ROBRENZ shows us some typical issue with the clips that are currently available and as a machinist he also demonstrates with some very intricate work that it is possible to improve on what is being used in industry. If that isn’t enough he also demonstrates how the current design of kelvin probes is flawed, the second video demonstrates his solution to the issue. Of course if he was selling one of these solutions it would probably cost more than the meter it is to be used on and unless you are measuring something of extremely low resistance the benefits would not warrant the insane build effort.

 

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