Talk:Construction/@comment-49.156.202.222-20131124233058/@comment-24117031-20131128144019

You are definitely doing something wrong if you development material ever dips to 0 at an early stage. The only reason dev materials should ever freefall is when you are attempting to develop very rare 3 star equipment.

Most daily quests give dev materials, 3 of which if you are really stuck, can be done in world 1-1 alone.

Expedition 8 has a chance to reward dev materials, each run is 3 hours long.

15x Resupply quest also gives dev material, combo this with the daily sortie quest.