** Please note this is a pre-sell item that will ship mid to late June 2014 - there will be a VERY limited run of this filament so pre-order will receive priority and will be guaranteed to receive the first batch! *** Proto-Pasta Carbon Fiber reinforced PLA is made from NatureWorks 4043D PLA Resin compounded with 15% by weight Tenax short chopped Carbon Fibers. It is designed to be stiff, or to resist bending. It is the stiffest material we offer and makes parts with an incredibly solid feel. When printed, this material is a dark glossy black that glitters slightly in direct light from the fine chopped fibers reflecting the light. Carbon Fiber Reinforced PLA does not require a heated bed and prints much like unreinforced PLA filament. The main difference is that it is brittle and care must be taken when handling the filament and loading the printer. We have had good results printing at 190C-210C using a .5mm nozzle and direct-drive spring loaded pinch-roll style extrusion head. Layer adhesion is excellent and the material has low warpage.
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