I bought a bunch of commercial earplugs in different styles and printed a bunch of the Loop-style stalks. I made SWAG bags with four regular earplug sets and a pair of my earplugs with S/M/L earbud covers. For fun, I added a PVC card that says, "I survived a talk by 24HourEngineer at Grindfest 2026, and all I got was some damn earplugs," positioned so it's visible through the bag.
I compiled notes for my Grindfest 2026 talk on earplugs, focusing on hearing perception, speakers, and music theory, and I plan to include demonstrations to make things memorable.
I designed a simple poster for my talk at Grindfest, but I made it single-color and entirely with lines so I could use my pen plotter/vinyl cutter to draw the sign on a piece of inexpensive 22" x 28" (56cm x 71cm) tagboard. I was delighted by the sign, considering it cost less than $1 USD.
My wife and I found a commercial gumball vending machine, and we both wanted to put stuff in it for Grindfest 2026. I had to drill out the lock and replace it with a printed topper, but security was never the goal. I assumed the machine worked with 1" spheres, but it was 1.25", so I ordered capsules that size and printed some plain spheres with "Grindfest 2026," as giveaways.
I wanted something innovative for the vending machine, and I drew on my compass-building experience. I made a printable device that sat in the half-clear balls and held a couple of magnets. When a nearby magnet moves, like the kind some grinders implant, the parts move without any visible contact. The whole thing could be added to a necklace with an eye-hook or carried in a pocket.
Alien (1979) is a classic horror movie, but is it science-fiction? We talked with our guest, Aaron Wroblewski, about this and other topics when he came by to talk about Enenra, his comic series. Aaron wanted to discuss Alien because it influenced his life and art.
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
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
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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| Five types of earplugs and convenient containers |
I compiled notes for my Grindfest 2026 talk on earplugs, focusing on hearing perception, speakers, and music theory, and I plan to include demonstrations to make things memorable.
 |
| Outlining my talk on ears and earplugs |
I designed a simple poster for my talk at Grindfest, but I made it single-color and entirely with lines so I could use my pen plotter/vinyl cutter to draw the sign on a piece of inexpensive 22" x 28" (56cm x 71cm) tagboard. I was delighted by the sign, considering it cost less than $1 USD.
 |
| Script Kitty for reference |
My wife and I found a commercial gumball vending machine, and we both wanted to put stuff in it for Grindfest 2026. I had to drill out the lock and replace it with a printed topper, but security was never the goal. I assumed the machine worked with 1" spheres, but it was 1.25", so I ordered capsules that size and printed some plain spheres with "Grindfest 2026," as giveaways.
 |
| Commercial gumball machine with printed baubles |
I wanted something innovative for the vending machine, and I drew on my compass-building experience. I made a printable device that sat in the half-clear balls and held a couple of magnets. When a nearby magnet moves, like the kind some grinders implant, the parts move without any visible contact. The whole thing could be added to a necklace with an eye-hook or carried in a pocket.
 |
| $0.12 spinner toy |
Alien (1979) is a classic horror movie, but is it science-fiction? We talked with our guest, Aaron Wroblewski, about this and other topics when he came by to talk about Enenra, his comic series. Aaron wanted to discuss Alien because it influenced his life and art.
Critical Affection: Alien (1979) (1:20)
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
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
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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