Each plastic key would need a steel screw to interact with the electromagnet. I wanted to put it on the end so the key could swing upward without colliding into the coil. I drilled a hole, countersunk it, and added a short #4 screw that was nearly flush with the stock plastic.
My hope was that the key could operate unimpeded after the upgrades were installed. I held the electromagnet off the side and I was able to get movement, but the magnet had to be too close to the screw before it would move.
Trying to move the key while the magnet was placed laterally was probably more difficult than attracting the screw directly to the face of the electromagnet. I moved the screw to the top of the key with the same method of drilling and countersinking.
There was still not enough power so I will have to look into a power supply with a higher voltage.
I looked for a 24V power supply in my stock, but I could not find one. I had an old laptop unit running at 19V. I tested and connected the power leads, but it would not operate reliably. It turned out that Dell supplies require a data exchange in order to output any significant power. The necessary time and resources to hack the supply would not be a good investment. I want to find a new supply to continue.
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.
2019-11-24
Side-mounted screw hole
My hope was that the key could operate unimpeded after the upgrades were installed. I held the electromagnet off the side and I was able to get movement, but the magnet had to be too close to the screw before it would move.
Solenoid mounted behind key
Trying to move the key while the magnet was placed laterally was probably more difficult than attracting the screw directly to the face of the electromagnet. I moved the screw to the top of the key with the same method of drilling and countersinking.
There was still not enough power so I will have to look into a power supply with a higher voltage.
Top-mounted screw
I looked for a 24V power supply in my stock, but I could not find one. I had an old laptop unit running at 19V. I tested and connected the power leads, but it would not operate reliably. It turned out that Dell supplies require a data exchange in order to output any significant power. The necessary time and resources to hack the supply would not be a good investment. I want to find a new supply to continue.
Checking voltage from a laptop power supply
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.
2019-11-24
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