To make the fish waterproof and motorized, a magnetically coupled system was going to be built for the jaw. Inside a piece of sealed PVC pipe, there will be an array of magnets which will spin parallel to the tube. On the outside of the pipe, more magnets will move to stay near the inside magnets. In this way, there will be movement outside the pipe without any holes.
An OpenSCAD model was created which would fit inside a tube, hold three magnets, and connect to a motor. In this case, the motor would be a stepper, so the axle socket was shaped to mate with it.
A stepper motor and driver was connected to an Arduino for testing. The rotation was precise but slow, and there was not enough power to move a fish head. We took time to brainstorm another way to move the fish heads.
The rest of the posts for this project 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
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 in 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.
2018-07-13
An OpenSCAD model was created which would fit inside a tube, hold three magnets, and connect to a motor. In this case, the motor would be a stepper, so the axle socket was shaped to mate with it.
Model of magnet wheel
A stepper motor and driver was connected to an Arduino for testing. The rotation was precise but slow, and there was not enough power to move a fish head. We took time to brainstorm another way to move the fish heads.
Moving a small stepper motor
The rest of the posts for this project 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
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 in 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.
2018-07-13
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