MakerBot's new infill setting, MinFill, is short for "minimum infill" and is based on a newly developed algorithm that determines the very least amount of interior support needed for each individual print. It's not going to be the best option for every print - if you want a durable or heavy object, you're still going to need to opt for heavier infill. But when print speed and surface quality are your priorities, MinFill is much more efficient than standard infill settings, according to MakerBot - especially for larger prints. The company's testing showed that MinFill can print anywhere from 30 to 80% faster than standard settings. Read more at 3DPrint.com: http://3dprint.com/168447/makerbot-minfill-3d-printers/