To access the machine library use the workspace icon
in the icon bar, then choose your machine from the list. In case your machine has not been on boarded yet, you can also use the open generic machine, to customize it.
Note: Some machines are only available in the premium tier of Netfabb, so it is possible that you cannot see all the machines with your current subscription.
A few examples from the machine library. In case your machine is not included, use the Generic Open Machine. The green light next to the machine indicates that they are included in Netfabb Premium only.