I bought a large plastic padlock from a toy store and wanted to make comically large lock picks to go with it. I designed the pick to look like a typical one but with a hollow handle for hanging. The tip is round for easy cutting, but it is not trying to be a legitimate tool because a curved tip is undesirable.
I cut a test unit in ugly green plastic, but I shortened it and designed a wrench to go with it. When I understood the settings, I cut red and blue plastic picks for a colorful set and even picked the lock with my new toys.
The PCB motors didn't work as expected, and people suggested other options. I returned to the original model with a cheap gear motor but faced problems integrating a speed controller and mounting the motor. I tried an unusual speed controller using diodes and switches to control the voltage.
I tested the diode series regulator on a breadboard, and it worked well. The diodes got warm, but the motor stayed cool. The speed changed as I hoped.
I imported my gear motor footprint from an early version and incorporated it into the design. I added standoff holes and a place to clip a lanyard. The design is nearly ready for ordering.
There was some trouble ordering parts because I could not always tell which components were in stock and which were "supported" meaning there was only a digital footprint. I compiled a usable board and submitted my order for five prototypes.
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
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.
.png) |
| 3D rendering of a comically large lock pick |
I cut a test unit in ugly green plastic, but I shortened it and designed a wrench to go with it. When I understood the settings, I cut red and blue plastic picks for a colorful set and even picked the lock with my new toys.
 |
| Toy picks for a toy lock |
The PCB motors didn't work as expected, and people suggested other options. I returned to the original model with a cheap gear motor but faced problems integrating a speed controller and mounting the motor. I tried an unusual speed controller using diodes and switches to control the voltage.
.png) |
| Spinner circuit schematic |
I tested the diode series regulator on a breadboard, and it worked well. The diodes got warm, but the motor stayed cool. The speed changed as I hoped.
 |
| Proving out the circuit |
I imported my gear motor footprint from an early version and incorporated it into the design. I added standoff holes and a place to clip a lanyard. The design is nearly ready for ordering.
 |
| Rendered PCB |
There was some trouble ordering parts because I could not always tell which components were in stock and which were "supported" meaning there was only a digital footprint. I compiled a usable board and submitted my order for five prototypes.
.png) |
| Revised board |
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
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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