This quest requires at least artisan level 50 or adventure level 72.
Use the cannon at 1554.56, 453.65, 816.30 to fire across the chasm to U.J.L. 1.0. Once there, head to 1407.33, 406.16, 706.55 and talk to Dudley Sprocklit.
Ore Cart for ore chunk
He will ask you to retrieve 8 ore. There are ore carts near the excavation bots, and you get the ore chunks from the carts.
Now you have to collect a fiber from a sweeper bot. Again, these will have a right-click, "Retrieve Fiber" option and they are located around the excavation bots. You can kill one, if you wish, and get the fiber off the corpse, but you do not have to kill them. Just right-click and Retrieve fiber.
Return to Dudley Sprocklit and hail him. Now, use the cannon next to him (dismount first if you are on a leaper, glider or flyer)... because you -are- the test subject! Once you're safely on the other side (surprising for a gnomish invention...), hail Ember Tizzlespring to complete the quest.
Ember Tizzlespring would like me to brave the trip across the chasm in the gnomish cannon and once I am there, I should help complete the building of a second cannon so it is possible for me to get back.
I need to help complete the building of a second cannon so it is possible to return to Dropship Landing Zone.
I need to speak with Dudley Sprocklit.
I have spoken with Dudley.
I need to retrieve ore from the excavation bots.
I have retrieved ore from the excavation bots.
I should retrieve a fiber from a sweeper bot.
I have retrieved a fiber from a sweeper bot.
I should give all I have picked up to Dudley.
I have delivered the materials to Dudley.
I have retrieved materials for the building of the cannon and given them to Dudley.
I need to return to Ember at Dropship and let her know that I have helped complete the cannon.
I need to tell Ember Tizzlespring that I have assisted in the completion of a second cannon. This requires being a test subject and using the cannon.
I have spoken with Ember.
I have informed Ember of the cannon's completion.
I have helped build a new cannon and now have a way to get back to Dropship Landing Zone.