Sometimes I need a power supply, but I'm not always near a benchtop unit, or it might be impractical. I wanted a battery-powered unit with some reasonable current. Adjustable modules aren't expensive or hard to find, and some models include a convenient interface with a screen. The cheapest versions only adjusted voltage above OR below the supply voltage, but I found a pricier model with a wide output and suitable amperage.
I designed laser-cut wooden faces for all my parts. There was a 12-volt battery holder that adapts the batteries in my drill, a lighted rocker switch, a barrel plug, and the screen. Most benchtop supplies have a couple of banana plugs, but I didn't have any on hand, and a standard power connector is easy to utilize.
QCAD drawing
I did a test fit, and all the pieces fit on the first try! The holes around the outside will hold M3 hardware. I wanted to enclose the electronics completely, but it wasn't necessary and would add unnecessary complications.
All the parts fit
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
Completed projects from year 7
Completed projects from year 8
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.
2022-07-22
I designed laser-cut wooden faces for all my parts. There was a 12-volt battery holder that adapts the batteries in my drill, a lighted rocker switch, a barrel plug, and the screen. Most benchtop supplies have a couple of banana plugs, but I didn't have any on hand, and a standard power connector is easy to utilize.
I did a test fit, and all the pieces fit on the first try! The holes around the outside will hold M3 hardware. I wanted to enclose the electronics completely, but it wasn't necessary and would add unnecessary complications.
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
Completed projects from year 7
Completed projects from year 8
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.
2022-07-22
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