I sketched out the next spinner iteration, using brass springs to keep it in place but letting it wobble. Brass should be suitable as a long-term spring, which I cannot say about a rubber band.
I drafted the new spinner in three parts. The magnet holder will print in two parts, and the axle holder is separate. Bolts in the spinner will hold thin brass wires crisscrossing the center, which fit into the axle holder grooves.
The print came out nicely, but the spinner became squished when I added the magnets. My magnet measurements must have been too tight on the size, so they deformed the shape. Revision needed.
I updated the spinner with magnet sockets that fit better, so I did not get as much distortion. The other change was four spots for coupling nuts to add eight bolts from the top and bottom.
I used thin brass rods as springs between the spinner rim and axle holder. I formed a couple of oblong loops and soldered the ends together under the bolts. The wire did not fit into the axle holder in the center.
I updated the spinner and axle holder so the brass springs came from the center instead of the top. This way, I do not have to conserve space for a coupling nut, which may help with miniaturization.
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
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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| New spinner concept |
I drafted the new spinner in three parts. The magnet holder will print in two parts, and the axle holder is separate. Bolts in the spinner will hold thin brass wires crisscrossing the center, which fit into the axle holder grooves.
 |
| REV17 model draft |
The print came out nicely, but the spinner became squished when I added the magnets. My magnet measurements must have been too tight on the size, so they deformed the shape. Revision needed.
 |
| Distorted spinner |
I updated the spinner with magnet sockets that fit better, so I did not get as much distortion. The other change was four spots for coupling nuts to add eight bolts from the top and bottom.
 |
| Magnets and brass couplers in spinner bottom |
I used thin brass rods as springs between the spinner rim and axle holder. I formed a couple of oblong loops and soldered the ends together under the bolts. The wire did not fit into the axle holder in the center.
 |
| 0.020" (0.51mm) brass wires installed under bolts |
I updated the spinner and axle holder so the brass springs came from the center instead of the top. This way, I do not have to conserve space for a coupling nut, which may help with miniaturization.
 |
| Bottom half of spinner (yellow) and axle holder (green) |
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
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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