Dependencies
SmileCore
Go to the SmileCore plugin page and install the plugin.
ProtocolLib
SmileCore depends on ProtocolLib.
Make sure to install the latest dev build.
PlaceholderAPI
This one is optional but many plugins hook into it. SmileCore depends on PlaceholderAPI.
Installation
Finally got to the AdvancedMachines plugin page and download the latest version.
After starting the server you should stop it again and check out Configuration so you the machines work as you want them to.