Hi, I have been trying to absorb as much as I can regarding 3D printing over the last couple of weeks but I need some clarification on exactly how durable 3d printing is.

I would like to print usable bespoke parts for airsoft/paintball guns. I have watched a few "durability" videos on youtube but I have a few reservations in regards to long-term life of 3D printed plastics when exposed to regular use (abuse) sunlight and stresses. A lot of videos show people hitting things with hammers and dropping them fresh out the printer but how would this same items hold up after 5 years of dropping, sunlight exposure and stresses. How does the stronger plastics (nylon, ABS) etc hold up? My main concern is obviously delamination on areas where they might be stresses. They might not show up right away, but cracks might show up later down the road. Also, is there a way to reinforce objects during or post printing?


Thanks