Hacked Gadgets Forum

June 30, 2015

120VAC Car Alternator Hack

at 11:19 pm. Filed under Crazy Hacks

 

If you like to see some real backyard hacking have a look at this video by kurtscottage. He is spinning an old car alternator with a gas motor and with a bit of rewiring and connecting through some home made transformers he is able to generate 120 VAC. Now the frequency is not always 60 HZ so I am not sure I would connect my laptop charger the the make shift power source but some resistive lights won’t be bothered by the non standard frequency.

 


June 27, 2015

Name the Thing Contest – 284

at 2:20 pm. Filed under Contests

guess_this_284

 

The prize this week is a HMC5883L Triple Axis Compass Magnetometer Sensor so you can add some directionality to your next project. This contest will run for one week (June 27 – July 3, 2015). Ending time is based on central standard time. To enter, identify the item above and what it can be used for.

Please do not give the answer in the comments.

Send an email to contest @ hackedgadgets.com with “Name the Thing Contest” as the subject, and the message body consisting of:

  • The name of the item in the above picture
  • An example of what the item pictured above can be used for

The winner will be chosen at random from all of the correct entries.

———————————–———-

Added Dec 6, 2015

The item to guess was a Large Transformer.

The winner is Ilias G.  (there were 58 entries)

————————————–———-

Below is a picture of the prize.

 

electronic_compass_2

 


CRT TV Flyback Transformer High Voltage Power Supply

at 1:48 pm. Filed under Cool Gadgets, Electronic Hacks

  CRT TV Flyback Transformer High Voltage Power Supply_2

 

We have seen lots of interesting projects made for little money using scrap electronics like Microwave Ovens, for this project you will need a piece from another throw away item, a CRT TV.  This CRT TV Flyback Transformer High Voltage Power Supply by Robert Gawron is cheap and easy to build since the main part can be found for free in a discarded old TV. It sure makes for a crazy looking jacobs ladder.

“Old CRT monitor or TV is a great source of electronic components that can be used in DYI constructions. One of them is a flyback transformer that can provide 10-30kV output. The input voltage can be in a range from a couple of volts to over a dozen of volts, power consumption is a couple of watts. In my construction input voltage is 9V, power consumption is 5W.”

 

 

CRT TV Flyback Transformer High Voltage Power Supply_3

 

CRT TV Flyback Transformer High Voltage Power Supply


June 25, 2015

Pocket NC 5 Axis CNC Mill

at 2:33 pm. Filed under Cool Gadgets

75838-pocketnc_5axis_desktop_cnc_mill

 

If you shop is in need of a new toy a Pocket NC 5 Axis CNC Mill might be just the thing! I have had so much fun with the Laser machine and the CNC machine that I have but none of the equipment I have is well equipped to work with metal. Also a basic CNC machine can only move in the X and Y axis and drop the cutting bit in the Z axis. This Kickstarter would get you the Pocket NC 5 Axis CNC Mill which is a true 5 Axis machine for $3500 (24 left at that price at the moment). Have a look at the blog, it is interesting to see that they are ramping things way up with the purchase of a HAAS milling machine! They are also getting their prototype boards made at OSH Park (listen to this podcast for their history). The machine looks to be very sturdy and can make some incredibly intricate parts!

“Machine Statistics 

X Axis · Max Speed: 40 ipm (inches per minute) · Resolution: 0.000125in · Backlash at 100% load : 0.003in · Max Travel: 4.5 in · Homing Repeatability: – +/-0.0005 in · Repeatability: +/-0.002 in at 0% load 

Y Axis · Max Speed: 40 ipm (inches per minute) · Resolution: 0.000125 in · Backlash at 100% load : 0.003 in · Max Travel: 4.8 in · Homing Repeatability: – +/-0.0005 in · Repeatability: +/-0.002 in at 0% load 

Z Axis · Max Speed: 40 ipm (inches per minute) · Resolution: 0.000125in · Backlash at 100% load : 0.003in · Max Travel: 3.45 in · Homing Repeatability: – +/-0.0005 in · Repeatability: +/-0.002 in at 0% load 

A Axis · Max Speed: 20 degrees/second · Resolution: 0.025 degrees · Backlash at 100% load : 0.05 degrees · Max Travel: 100 degrees (90 degrees +/- 5 degrees) · Homing Repeatability: – +/-0.025 degrees · Repeatability: +/-0.025 degrees at 0% load 

B Axis · Max Speed: 40 degrees/second · Resolution: 0.025 degrees · Backlash at 100% load : 0.05 degrees · Max Travel: continuous rotation · Homing Repeatability: – +/-0.025 degrees · Repeatability: +/-0.025 degrees at 0% load 

Spindle · Spindle Speed: 65-10,000 rpm (rated to 50,000 rpm) Runout 0.000078in, Lever type tool change (no wrenches necessary)”

 

 

 

 

 

June 24, 2015

AD9833 Waveform Generator

at 3:47 pm. Filed under Cool Gadgets

 

Julian Ilett has a look at a AD9833 Waveform Generator.  It looks like a nice device. Connect a microcontroller to it and use SPI to interface to it. You can set it up for square wave, sign wave or triangle wave all through SPI.  The AD9833 looks like it could be very useful whenever you need to easily generate specific frequencies. The module that Julian is using was under $7 with free shipping.

 

“Features and Benefits

  • Digitally Programmable Frequency and Phase
  • 12.65 mW Power Consumption at 3 V
  • 0 MHz to 12.5 MHz Output Frequency Range
  • 28-Bit Resolution (0.1 Hz @ 25 MHz Ref Clock)
  • Sinusoidal/Triangular/Square Wave Outputs
  • 2.3 V to 5.5 V Power Supply
  • No External Components Required
  • 3-Wire SPI Interface
  • Extended Temperature Range:
    –40°C to +105°C
  • Power-Down Option
  • 10-Lead MSOP Package
  • Qualified for automotive applications”

June 22, 2015

Nd YAG Laser Taken Apart

at 4:14 pm. Filed under Cool Gadgets, Insane Equipment

 

Photoinduction has taken apart his Nd YAG Laser. This is a complex beast of a system, I wonder what this thing cost new! He goes over some of the theory behind how the system works and demonstrates some of the parts from his huge laser system. There is some damage to this system, looks like there was probably a water cooling issue or just a loose electrical connection that allowed for some heat buildup.

June 20, 2015

Vinyl LP under an Electron Microscope

at 9:53 am. Filed under Complex Hacks, Insane Equipment

 

Have a look at the great video of this Vinyl LP under an Electron Microscope. Using an Electron Microscope isn’t as easy to use as a normal microscope, in this case the vinyl needed to be metal coated to be viewed. The scanned data was captured with a DSO and processed into a short video. It looks amazing, I didn’t realize how Vinyl Records LPs encoded the 2 stereo channels. The CD also looks very interesting up close.

 

 

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