It will be vital to know the position of the rotating cylinder so an optical sensor will monitor dark and light stripes which amounted to a homemade encoder. The steady location of the IR emitter and sensor unit may be tricky. A camera mount for a security camera offers a couple of articulated joints and 1/4-20 threaded posts on either side, so it is easy to mount.
A #4 standoff went through the hole of the IR sensing unit but, it was tricky to couple the two threaded components. I look for a small bit of plastic to put two holes in it to accept bolts of either size. Before I found suitable plastic, the kind that would not shatter, I found some articulated tubing that could accommodate a #4 bolt and was also longer than the camera mount.
With a bright light, it was possible to see the #4 bolt and screwdriver bit inside the plastic nozzle. As fortune would have it, the bolt head was large enough to trap it inside the tip while the threaded portion was small enough to pass through the opening without modifying anything. I used a pan head bolt, but a countersunk head might have been a better choice.
Since the nozzle was pointed plastic, I removed the standoff and nylon washer that was resting against the PCB. I thought this portion of the project would be exceptionally traumatic, but if I get good readings with this positioner, it will be a blessing.
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.
2019-08-22
Security camera mount and IR sensor
A #4 standoff went through the hole of the IR sensing unit but, it was tricky to couple the two threaded components. I look for a small bit of plastic to put two holes in it to accept bolts of either size. Before I found suitable plastic, the kind that would not shatter, I found some articulated tubing that could accommodate a #4 bolt and was also longer than the camera mount.
Articulated nozzle and IR sensor
With a bright light, it was possible to see the #4 bolt and screwdriver bit inside the plastic nozzle. As fortune would have it, the bolt head was large enough to trap it inside the tip while the threaded portion was small enough to pass through the opening without modifying anything. I used a pan head bolt, but a countersunk head might have been a better choice.
Bolt visible inside nozzle
Since the nozzle was pointed plastic, I removed the standoff and nylon washer that was resting against the PCB. I thought this portion of the project would be exceptionally traumatic, but if I get good readings with this positioner, it will be a blessing.
Fewest parts for an easy-to-position sensor
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.
2019-08-22
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