A gorgeous circuit board goes a long way in the hacker crowd. This one is supposed to be a desk decoration, but its styling could easily be a convention badge. The analog circuit powers an acoustic levitation rig that can invisibly suspend crumbs.
I have worked with epoxy and fiberglass before, and a decent respirator is a must. This maker decided to try a different adhesive and used hide glue, which is similar to gelatin because they are both made from animal proteins. On the plus side, hide glue isn't noxious, but it doesn't hold up under heat or humidity.
So many times, I have had to hunt around for a peripheral to start up a computer. I have to hunt for ten minutes to find a USB mouse or keyboard, so I can type a dozen letters or click a few boxes. In the case of a RetroPie, they expect a game controller input. This project was a USB dongle that emulated all those devices, but it used someone's phone as the interface. Sadly, only for Android.
This guy has been on HaD a few times, and every time he amazes me. The first time, he made a digital sundial to exemplify the properties of collimated light. This time, he demonstrated reflectivity by combining a flexible two-way mirror with another to create a funhouse/infinity mirror.
When someone uses an eye-tracking computer to speak, it may be tough to know when they're composing a message, and many people try to come around and look at the screen. Rude. This device plugs into the computer and displays a rotating arrow so folks can stop themselves from peeking.
This was just fun. It was a model oscilloscope with a neon green rubber band stretched across three levers, and when you turn a knob, the band warbles and looks like a sine-wave trace. All the parts were 3D printed by a toymaker. For such a small device, it was involved.
The rest of the summary posts have been arranged by date. First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
I have worked with epoxy and fiberglass before, and a decent respirator is a must. This maker decided to try a different adhesive and used hide glue, which is similar to gelatin because they are both made from animal proteins. On the plus side, hide glue isn't noxious, but it doesn't hold up under heat or humidity.
So many times, I have had to hunt around for a peripheral to start up a computer. I have to hunt for ten minutes to find a USB mouse or keyboard, so I can type a dozen letters or click a few boxes. In the case of a RetroPie, they expect a game controller input. This project was a USB dongle that emulated all those devices, but it used someone's phone as the interface. Sadly, only for Android.
This guy has been on HaD a few times, and every time he amazes me. The first time, he made a digital sundial to exemplify the properties of collimated light. This time, he demonstrated reflectivity by combining a flexible two-way mirror with another to create a funhouse/infinity mirror.
When someone uses an eye-tracking computer to speak, it may be tough to know when they're composing a message, and many people try to come around and look at the screen. Rude. This device plugs into the computer and displays a rotating arrow so folks can stop themselves from peeking.
This was just fun. It was a model oscilloscope with a neon green rubber band stretched across three levers, and when you turn a knob, the band warbles and looks like a sine-wave trace. All the parts were 3D printed by a toymaker. For such a small device, it was involved.
The rest of the summary posts have been arranged by date. First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
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