Recommend to play in 
version 1.12 or higher.
I created working security cameras
in vanilla minecraft!!!!!!
sometimes it can be a little buggy, so if you
get stuck use this
command: /scoreboard players tag @p remove Camera
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favorite♥ and
subscribe!

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  [b][i][u][color=#993300]Important[/color][/u][/i] If you do youtube video on this structure you need to put right credits and download link in description![/b]
  [/list]
  [hr][/hr][color=#ff9900][u][i][b]How to install structures[/b][/i][/u][/color]
  Step 1: Access your .minecraft folder For windows, Hold the windows button and the R button at the same time and type in %Appdata%. Your .minecraft folder should be among the others. For mac, click on finder and press the "Go" button on the top bar, then click "go to folder" and type this into the box:"~/Library/Application Support/minecraft
  
  Step 2: Open up your saves folder, and open up the world you want the structure in.
  
  Step 3: Access the world's "structures" folder. If it's not there, you can make one.
  
  Step 4: Put the downloaded structure in the "structures" folder.
  
  Step 5: Go into the world you put the structure into (In-game), and give yourself a structure block (/give @p structure_block)
  
  Step 6: Switch it to the "Load" function, and type the name of the structure into to top bar. (at this time it is "machine")
  
  Step 7: Press the Load button once to open up a wireframe of where the structure will be. Press it again to actually load the structure.
  
  Step 8: E
• [/hr]
• Important If you do youtube video on this structure you need to put right credits and download link in description!

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How to install structures
Step 1: Access your .minecraft folder For windows, Hold the windows button and the R button at the same time and type in %Appdata%. Your .minecraft folder should be among the others. For mac, click on finder and press the "Go" button on the top bar, then click "go to folder" and type this into the box:"~/Library/Application Support/minecraft

Step 2: Open up your saves folder, and open up the world you want the structure in.

Step 3: Access the world's "structures" folder. If it's not there, you can make one.

Step 4: Put the downloaded structure in the "structures" folder.

Step 5: Go into the world you put the structure into (In-game), and give yourself a structure block (/give @p structure_block)

Step 6: Switch it to the "Load" function, and type the name of the structure into to top bar. (at this time it is "machine")

Step 7: Press the Load button once to open up a wireframe of where the structure will be. Press it again to actually load the structure.

Step 8: Enjoy!