I designed a new shell for the spinner. This one will be printed in two halves without supports, and I will bolt them together, with the spinner secured inside between a couple of bolts.
When I printed the REV13 shell, I was happy with how well it fit together, but it needed to be taller to accommodate the spinner and axle. I would also have needed very long bolts for the side.
I deepened the shell to fit the spinner and axle. I also changed the long tubes on the outside to short "ears" and coupled the sides with nylon standoffs and machine screws. The design looked good, but cutting the standoffs to length took a lot of work.
I moved the "ears" from the top and bottom to the center, where I could link them with short bolts and nuts. The bolts were too short for these parameters, but I will change that next time.
I added feet to the bottom so I could stand the device on a table and have it sit level. I also included holes at the top and bottom to make it easier to see the spinner inside.
I printed the latest shell base with the feet. I also printed the latest spinner, which I neglected for a bit because it was only a minor change last time. The top did not change because the only alteration was the addition of holes.
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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Shell for cylindrical spinner |
When I printed the REV13 shell, I was happy with how well it fit together, but it needed to be taller to accommodate the spinner and axle. I would also have needed very long bolts for the side.
![]() |
REV13 shell printed |
I deepened the shell to fit the spinner and axle. I also changed the long tubes on the outside to short "ears" and coupled the sides with nylon standoffs and machine screws. The design looked good, but cutting the standoffs to length took a lot of work.
![]() |
REV14 shell with standoff sides |
I moved the "ears" from the top and bottom to the center, where I could link them with short bolts and nuts. The bolts were too short for these parameters, but I will change that next time.
![]() |
Central fastening used shorter screws |
I added feet to the bottom so I could stand the device on a table and have it sit level. I also included holes at the top and bottom to make it easier to see the spinner inside.
![]() |
Advancing the design |
I printed the latest shell base with the feet. I also printed the latest spinner, which I neglected for a bit because it was only a minor change last time. The top did not change because the only alteration was the addition of holes.
![]() |
Frankencompass |
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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