I had almost everything I needed to assemble, except for some short brass bolts. My earlier plan used dome nuts on the seams between octaves, but that changed, and I needed pan-head bolts. I ordered the necessary parts, but I had to wait. I assembled the white/brass spacers, which were visible on the flipped octave, and I tested the new keycap, but it still needed work.
The keycap went through a couple of rounds of revision. The first made clearance for the switch legs and wires, but the changes there made my keycap pop up at the front, so I went back and rounded the front edge to decrease the angle someone would press the key.
To get ready for testing, I revised the Arduino sketch. Each octave had two IO expander boards, and they needed different configurations for input or output. The program should now alert me if I cannot detect one, print any button presses, and cycle the lights.
Fred Schwartz, a friend and comic writer, and I talked about 3D printers, which he was not super familiar with but was interested in. We got to talking about printing characters from a comic, and the hardest part was making a 3D model. I knew of some AI services that could convert drawings into models, and we tried it with some original artwork from his comic, namely a villain called The Bloom, a horrible bloomin' onion. I think the conversion went well, and Fred was delighted to see his creation from a new angle.
I printed a copy of The Bloom. I wanted a large hollow version printed on a filament printer, but the software would not cooperate with the model. The software for my resin printer rendered it with supports flawlessly, and I let it print for over four hours. Everything looked amazing!
No one liked Entrapment. The sexism and ham-fisted attempts at romance made it a painful watch. We saw the potential of its plot; a world-class thief uses her skills to recruit another to pull off the world's biggest heist, but the execution was hamstrung by too many pervy guys.
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.
![]() |
| Two octaves sitting in place, and the third flipped |
The keycap went through a couple of rounds of revision. The first made clearance for the switch legs and wires, but the changes there made my keycap pop up at the front, so I went back and rounded the front edge to decrease the angle someone would press the key.
![]() |
| Pressing too close to the edge was a problem |
To get ready for testing, I revised the Arduino sketch. Each octave had two IO expander boards, and they needed different configurations for input or output. The program should now alert me if I cannot detect one, print any button presses, and cycle the lights.
![]() |
| Ready to test all three octaves |
Fred Schwartz, a friend and comic writer, and I talked about 3D printers, which he was not super familiar with but was interested in. We got to talking about printing characters from a comic, and the hardest part was making a 3D model. I knew of some AI services that could convert drawings into models, and we tried it with some original artwork from his comic, namely a villain called The Bloom, a horrible bloomin' onion. I think the conversion went well, and Fred was delighted to see his creation from a new angle.
![]() |
| The Bloom |
I printed a copy of The Bloom. I wanted a large hollow version printed on a filament printer, but the software would not cooperate with the model. The software for my resin printer rendered it with supports flawlessly, and I let it print for over four hours. Everything looked amazing!
Almost the size of a billiards ball (0:15)
Fisticuffs by Fred Schwartz.
No one liked Entrapment. The sexism and ham-fisted attempts at romance made it a painful watch. We saw the potential of its plot; a world-class thief uses her skills to recruit another to pull off the world's biggest heist, but the execution was hamstrung by too many pervy guys.
Critical Affection: Entrapment (1:17)
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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