I struggled with fitting wire in a small space without interfering with the compass movement. I tried hairpin bends, but they needed more flexibility. I sketched a helical design with a weight at the bottom, but the one I produce will have more turns.
Hairpin and helix comparison
I coiled wires around a battery, then soldered a brass nut to the bottom. I tried attaching the spring to the compass but couldn't assemble it. I bent thick copper wire into a frame and cut brass cones to hold a spinner. I placed the coil but needed to reconsider the frame's shape.
All-metal frame
I revised the design issue by reshaping the wire to utilize brass coupler nuts on the ends. I made a copper spring to go around the spinner, but it interfered when it swayed. Next time, I'll use a short flat brass spring with a heavy weight.
Helical coil is too floppy
At DEFCON31, I met someone wearing a cool cyberdeck with an orange/white color scheme. It looked like a NERF toy gun, but it was clearly a tool of electronic mischief. I wish it was running so I could see it in action.
I made a spring to support a weight on a spinner's bead. I added a brass bolt and two nuts at the bottom to get some motion. I repositioned the bolt inside the spring for more space and fine-tuned the height with bolts pinning the spinner. I need a weaker spring for more movement.
Correct shape, but too rigid
I thinned my flat brass spring with a rotary tool to increase flexibility. After bouncing it, the bolt oscillated a few millimeters. I adjusted bolts and nuts to collide when facing north, creating a wearable haptic compass prototype.
The weighted bolt moves vertically and taps on the bottom bead
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.
I coiled wires around a battery, then soldered a brass nut to the bottom. I tried attaching the spring to the compass but couldn't assemble it. I bent thick copper wire into a frame and cut brass cones to hold a spinner. I placed the coil but needed to reconsider the frame's shape.
I revised the design issue by reshaping the wire to utilize brass coupler nuts on the ends. I made a copper spring to go around the spinner, but it interfered when it swayed. Next time, I'll use a short flat brass spring with a heavy weight.
At DEFCON31, I met someone wearing a cool cyberdeck with an orange/white color scheme. It looked like a NERF toy gun, but it was clearly a tool of electronic mischief. I wish it was running so I could see it in action.
I made a spring to support a weight on a spinner's bead. I added a brass bolt and two nuts at the bottom to get some motion. I repositioned the bolt inside the spring for more space and fine-tuned the height with bolts pinning the spinner. I need a weaker spring for more movement.
I thinned my flat brass spring with a rotary tool to increase flexibility. After bouncing it, the bolt oscillated a few millimeters. I adjusted bolts and nuts to collide when facing north, creating a wearable haptic compass prototype.
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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