Powering devices on a rotating cylinder was always going to be a problem. One thought was to place a battery inside, but they have their issues, and there would be a considerable current draw from the LEDs. External power was necessary, so a method to convey power through sliding contacts, like a motor commutator and brushes was designed.
The parts were ordinary with the copper tape being the most exotic but thinly sliced aluminum tape could be a substitute.
Foam brushes from the hardware store were mounted with cable clamps, also from the store. Both of these parts were tested in the store to ensure a snug fit. When the brush handles were fastened, they were kept loose enough that they could be rotated with a bare hand.
The copper tape went around the reducer in two rings. These formed a slip ring configuration. Unlike a motor's commutator and brush, these maintain polarity whereas a DC motor will alternate it.
More copper tape was added to the foam brushes and spaced so the copper would align with the rings on the PVC reducer. The elasticity of the foam should keep contact between the copper so that power inside the cylinder will not be interrupted.
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
Completed projects from year 6
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.
2019-07-02
The parts were ordinary with the copper tape being the most exotic but thinly sliced aluminum tape could be a substitute.
Materials: copper tape, foam brush, and cable clamps
Foam brushes from the hardware store were mounted with cable clamps, also from the store. Both of these parts were tested in the store to ensure a snug fit. When the brush handles were fastened, they were kept loose enough that they could be rotated with a bare hand.
Brush mounted
The copper tape went around the reducer in two rings. These formed a slip ring configuration. Unlike a motor's commutator and brush, these maintain polarity whereas a DC motor will alternate it.
Copper conductor rings
More copper tape was added to the foam brushes and spaced so the copper would align with the rings on the PVC reducer. The elasticity of the foam should keep contact between the copper so that power inside the cylinder will not be interrupted.
Conductive "brushes" made from brushes
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
Completed projects from year 6
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.
2019-07-02
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