MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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Strange as it seems, it's not under-extrusion. At least with my current extruder gear and calibrated steps, it's tight.
Also not 0.88 %, 88 % or 0.88, both being the same. 0.88 % would be 0.0088.
(My original gear slipped over the filament)