+1 A similar strategy has been discussed in a different post here: https://forum.simplify3d.com/viewtopic.php?f=23&t=5729&p=26078&hilit=second+extruder+for+infill&sid=b154d89aa7d3f95d6d310800ee9d8e16#p26078 I've been using Simplify3D for just 2 weeks now, and came across the possibil...