I revised the exterior cage according to my notes but encountered problems installing the hardware. I ordered new bolts, but they were too short. I trimmed a couple and a standoff, then fastened it inside the compass. The top nut was loose, but I could turn it to adjust the height. The design worked, but the spinner started rattling and spinning poorly.
I started a new design where the feedback hardware is within a perimeter of magnets instead of outside a magnet at the hub. The program currently supports an arbitrary diameter and distributes any number of bar magnet holes along the rim.
I continued the design by adding a hub. The axle will be a brass rod with sharpened ends. Previous axles were finicky to produce, but this one should require less machining.
I ground a couple of brass axles. I did not worry about the precise length of these first versions, but they were similar. I tried a few techniques, but the fastest method was to spin the brass rod with a rotary tool while grinding the tip with a second tool using a cut-off wheel.
I had to drill out the axle hole, but I got an axle seated firmly. The magnets went in without any issue, so my hypothesis about the printer or software skewing the model is disproven. I also have to figure out why the spinner was unbalanced.
The axle hole issue bothered me, so I generated seven axle sockets with increasing diameters described by the text. If I cannot discover a code error, I should be able to find a workable model.
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.
 |
| REV10 |
I started a new design where the feedback hardware is within a perimeter of magnets instead of outside a magnet at the hub. The program currently supports an arbitrary diameter and distributes any number of bar magnet holes along the rim.
 |
| Various rings with variable magnets |
I continued the design by adding a hub. The axle will be a brass rod with sharpened ends. Previous axles were finicky to produce, but this one should require less machining.
 |
| Spinner with axle holder |
I ground a couple of brass axles. I did not worry about the precise length of these first versions, but they were similar. I tried a few techniques, but the fastest method was to spin the brass rod with a rotary tool while grinding the tip with a second tool using a cut-off wheel.
 |
| Axles cut from brass rod |
I had to drill out the axle hole, but I got an axle seated firmly. The magnets went in without any issue, so my hypothesis about the printer or software skewing the model is disproven. I also have to figure out why the spinner was unbalanced.
 |
| Rigid spinner |
The axle hole issue bothered me, so I generated seven axle sockets with increasing diameters described by the text. If I cannot discover a code error, I should be able to find a workable model.
 |
| Test axle sockets |
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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