There have been times in the past that people have asked me if they could print lenses and other clear items with their filament fed 3D printer. I’ve always replied that while you can get pretty clear,
Knots 3D for iOS is now FREE. This is the first time the regularly $5 app has gone free in slightly over a year. That deal only lasted less than 3 days, so be sure to jump on this one if you’re interested.