The conical rests could potentially introduce a lot of friction. This would be caused by the edges of the spinner point rubbing against the cone walls. A sloped surface, like an ellipsoid may be preferable for the spinner rest. The spinner design will involve a magnet with a pin coming off of each side to rest on the enclosure. It may be beneficial to make an enclosure design with a cone coming from either side to hold a magnet spinner.
The first design was a hemispherical nub over the hole in the enclosure. This mass seemed excessive even though the most friction would take place at this point. The second design was a hemispheroid with the same proportions as the enclosure itself and this seemed like a better design.
The final design for a rounded spinner holder was a small sphere with a very small divot. This design may be difficult to get the spinner seated but it should provide a low friction and precise method of holding the spinner in place. The code for the spinner rests was commented out with notation that only one should be selected for the printing.
To do:
The rest of the posts for this project have been arranged by date.
The first design was a hemispherical nub over the hole in the enclosure. This mass seemed excessive even though the most friction would take place at this point. The second design was a hemispheroid with the same proportions as the enclosure itself and this seemed like a better design.
External view of hemisphere design
External view of hemispheroid design
Internal view of hemispheroid design
The final design for a rounded spinner holder was a small sphere with a very small divot. This design may be difficult to get the spinner seated but it should provide a low friction and precise method of holding the spinner in place. The code for the spinner rests was commented out with notation that only one should be selected for the printing.
External view of the small hemisphere design
Internal view of hemispheroid design
Code showing code for both spinner rests
To do:
- Design an enclosure with a cone to capture a spinner
Design hemispherical spinner rest- Design spinner for spheroid compass
- Design spinner mount for tubular compass
- Install larger bearing
- Cut/bend hanging bracket for spinner
- Buy spongy material for spinner to land on
- Test + Evaluate hanging tubular compass
- Redesign, Rebuild, + Repeat
A list showing of all the final posts of COMPLETED projects.
Disclaimer for http://24hourengineer.blogspot.com/
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information in this blog, or linked by this blog, are 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 claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2015-02-19 (Th)
2015-02-19 (Th)
Comments
Post a Comment