Hacked Gadgets Forum

May 16, 2016

DIY Spotwelder

at 3:51 pm. Filed under DIY Hacks

 

 

If you do any metal work projects there will come a time when you would like to bond some metal together without using mechanical fasteners. Easiest way to do this is by welding, a spot welder is a type of welder that is simple since there are no welding rods needed. Make it Extreme built this great looking DIY unit. A high current is simply passed through the two metals in one spot allowing them to heat up and fuse together. Best of all the main component that is used is a MOT (microwave oven transformer), these can be scavenged from a discarded microwave for free. The main portion of the build is the structure that allows the unit to be free standing and operated by a convenient foot pedal.


May 14, 2016

Drawing To Laser Engraving System

at 8:04 pm. Filed under Computer Hacks, DIY Hacks

Drawing To Laser Engraving Program_4

 

When it comes to converting something drawn to a laser etched image there are often quite a few steps needed. Martin Raynsford has built this Drawing To Laser Engraving System to allow him to easily go from drawing to laser etched images by using a bit of hardware and some custom software. Of course you can do this type of thing manually like was done in the Halloween Hanging Mobile Project many moons ago but there is something great when the process is automated.

“The third and final project from this years maker faire was a webcam capture program that would easily digitize children’s drawings and then send them down to the laser cutter for engraving. The webcam holder with led lighting to illuminate the drawing. I used a c# wrapper for the open CV library to capture images from the webcam, a little bit of filtering to remove pixels that weren’t black enough. The image was then converted to G Code, and transferred to a GRBL controller that was wired into the Greyfin laser cutter. The G Code simply drives the laser to the next black pixel and burns a single dot for each pixel, repeat for each black pixel in the image.”

 


May 11, 2016

Concrete Creations to Inspire

at 8:02 pm. Filed under Crazy Hacks

 

 

When you think of concrete you probably think about parking garages and and house foundations. Here are some projects that might cause you to add a few bags of concrete to your next DIY project. In the first video you will see that by using a simply mold and a simple jig you are able to create some wonderful bends in concrete. The concrete in many of these projects need additives to allow it to set fast, bend without cracking and not slump when bent.

 

 

 

 

 

 
 


May 7, 2016

Name the Thing Contest – 295

at 4:23 pm. Filed under Contests

guess_this_295

 

The prize this week is a relay module to get your next project started. This contest will run for one week (May 7, 2016 – May 13, 2016). 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.

Below is a picture of the prize.

 

4 relay module

 

Bike2 – Chainless Electric Bicycle

at 3:59 pm. Filed under Cool Gadgets

bike2_chainless_bike

 

Interesting concept, lots of the bikes we see today are mechanical bikes first with some add on electronics and motors that make them electric assisted. The motors are normally hub motors that are mounted within the wheel(s). The electronics connect to the brakes to sense when the user is braking and has a throttle to power the electric assist motor. If the battery is dead you are still able to use the bike as a regular pedal power bike. The Bike2  is a true electric bike first and has bike pedals available to simply generate electricity that can charge the batteries. Great concept but I wonder how it feels when the battery is dead or even if you can ride the bike with a completely dead battery. I think a regular bike rider would find it awkward at the beginning since the revolution of the pedals would not correspond with the speed of the bike.

“BIKE2 incorporates state of the art components for uncomplicated great technology at your fingertips (toe-tips), ergonomics and design. The system consists of innovative drive system components and is compact, silent and comes with a programmable interface for different speeds and cadence.
The absense of a chain allows different types of frames and customizable structures.”

 

 

 


May 6, 2016

Digital Caliper Data Plug Build

at 12:14 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

Bob over at Making Stuff didn’t want to purchase an expensive cable for his digital calipers, instead he decided to build it. A small 3D printed grooved part with a few connected wires is all that is needed to connect to the data output port of the calipers. A logic level converter is needed to change from 1.5 volt output of the calipers a voltage high enough for a solid logic level 1. Now this can be used as a precision measurement input on a microcontroller project.

 

May 2, 2016

Laser Transmits Audio Over 100m

at 4:24 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

If you are looking to send some data or some audio over a fairly long distance wirelessly you can have a look at this very cheap solution if line of site will work. Iforce2d is using a very inexpensive laser diode and receiver to get the job done. This code is what does the heavy lifting as far as getting the data across the link.

 

 

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