Sounds like your snap was poorly designed and or your settings were less than optimal. If you don't have the knowledge to do it correctly i understand your frustration but their are a lot of people that do thus its popularity.

As far as what century i live in i would say the one that lives in reality. Just because you post a lot doesn't mean your right. I read your post trying to help a guy make a gear. You don't even understand basic involute/gear construction.

I have been designing products and rapid prototyping for over 25 years for a lot of big companies using SLA, SLS FDM in plastics and metals. Printing ABS is easy if you know what you're doing. Other materials have their place and i fully understand PLA in the hobby sector.