I have my glowforge for 2 weeks and have just now found the time to set it up.
I followed the directions closely but cannot find a reference to an item in one the boxes i found. It is blue, tube like in structure about an inch long. One side says remove, the other says install.
I’m glad you resolved it! And thanks for clarifying @jbmanning5 just in case. I’m going to close this thread - if you have any other questions, go ahead and post a new topic.