Hacked Gadgets Forum

April 23, 2016

Laser Cut Bowl

at 8:35 pm. Filed under DIY Hacks

 

If you have a laser cutter and looking for an interesting weekend project, this Laser Cut Bowl by Outfab might be just the thing. The design is very good at material usage since all of the parts are nested inside the overall cutouts. If you wanted to bang together a bunch of them I could see making a slightly different design that could be put together and act as a guide, then you could just place a few glue dots on each piece and drop it in one after another and it would self align based on the jig.

 

 


April 21, 2016

Mechanical Television Build

at 2:56 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks


 
 
Ben Heck and his team built this Mechanical Television. It uses holes drilled into a vinyl record which is spun with a light source behind it. A light sensor is then used to determine the amount of light that is reflected off the surface of the item that they would like to transmit. A complimentary rotating disk with a controlled light source is used to duplicate what the first system is seeing. The build didn’t quite work in the end but the techniques and information that we see along the way is worth it.

 

 


DIY Volume Control Builds

at 12:22 am. Filed under Computer Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks

 

 

If you are tired of reaching for your tiny volume control knob to adjust your music when using your computer look no further than these projects by Engineering Nonsense and DIY Perks. The top one uses a DIGISpark board and a rotary encoder to adjust the volume via USB and the one below uses a potentiometer to adjust the analog output of your signal feeding your amplifier.

 

 


April 15, 2016

LiPo Battery Danger

at 11:04 pm. Filed under Electronic Hacks

 

LiPo batteries are used everywhere. You might think twice before you toss them around like the regular alkaline batteries that are much safer and very common. GreatScott shows us how accurate the built in protection circuits are. You probably won’t be surprised to learn that they are not very accurate and often take much more current than expected to trip.

April 14, 2016

Huge Hydraulic Press Folds Paper

at 4:46 pm. Filed under Funny Hacks, Insane Equipment

 

There is a theory that you can’t fold paper more then 7 times. There was even a Mythbuster Episode about it. By pressing the paper between folds it is easier to work with but even with the power of this press the experiment fails when the paper basically explodes out of the press.


April 12, 2016

Largest Plasma Arc Vortex Speaker

at 3:47 pm. Filed under Cool Gadgets, Electronic Hacks

 

Have a look at this interesting Plasma Arc Vortex Speaker. Unlike the regular plasma ark speakers that you have seen in the past.

Via: Hackaday
“After replacing the power supply and adding an RC snubber across the flyback transformer primary, my plasma speaker is already much louder. The addition of a more powerful PSU, it allowed me to also reduce the number of turns on the primary, which increased the voltage output. The RC snubber not only protects the MOSFET from the inductive spike of the flyback transformer, but it also drastically reduces the ringing associated with the capacitance between the MOSFET drain and source and the leakage inductance of the flyback transformer. The music your hear is only from the arc and nothing else. There are no other sources of music in the room. It works by using a 555 timer to convert an audio input signal into a frequency modulated signal used to drive a flyback transformer.”

 

April 11, 2016

High Speed Corn Starch Experiments

at 11:45 am. Filed under Crazy Hacks

 

We have seen lots of corn starch experiments in the past. When mixed with water it is a liquid that can be poured but if you shock it with a hard impact it will turn into a solid. There are lots of fun experiments that can be done with it but the TheBackyardScientist has recorded some great reactions with his high speed camera. The best reaction I think is the one at 2:50 where a golf ball is shot at a balloon filled with the liquid, in real time it looks like a normal explosion but in slow motion you can see that the substance breaks apart like chunks of fruit.

 

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