Order your drone to fly away and scavenge for machine parts to bring back to you. This is the second way to get parts in the field (other than the workstation printing them for you), and the only way to get more than 50% of your carrying capacity in the field.

Skill: Bots
Group: Drone
Command: BOT AIRDROP
Known: No
Lessons: 186 Lessons
Ability type: Noncombat utility
Base balance time: 3.00 seconds