Smart Extruder + Flex Filament Upgrade

This is an upgrade for the MakerBot Smart Extruder +, to print easier flexible filament.

I made some first successful tests with flexible filament shore 45D on a MakerBot Repicator+ standard resolution 0.2mm. (pictures above).

I tested it even with NinjaFlex (shore 85A) and it works. You have to adjust z-axis offset, print speed (Shell and Infill Print Speed 20mm/s), temperature and retraction (Temperature 235°C, Filament Diameter 1.77, Retraction Distance 0mm).

Here's a blog post to th