I use a lot of ABS and PLA from Gizmodorks. Here is what i’ve found.
When PLA is left in the feed tube it will snap following a print. Sometimes 30 min later, other times 4 hours later. but it inevitably snaps. When i fed the PLA directly into the extruder without the tube i no longer had any breaking issues. I’ve tried to understand why this occurs and I have read about everything from the PLA reacting with the PTFE Feed tube to the PLA absorbing moisture and becoming brittle… Why this actually happens I have no idea but since I’ve stopped using the Feed tube all of the breaking issues have gone away.
Of the 9 most recent spools of Gizmodorks PLA I’ve used, 2 of them have had binding while feeding into the extruder. Upon closer inspections it seems that somewhere during the winding process some filament was crossed and caused it to bind while feeding. These issues were present in the first two spools I have used and I have not had a single issue since. Of note using IC3D FIlament I have never had any spool related issues but i tend to use gizmodorks due to cost. Spool issues aside Gizmodorks and IC3D Seem comparable in quality.
I Have not had a single hotend Jam as a result of contaminated filament across Gizmodorks PLA or ABS using my E3D V6 hotend. (My first and last roll of Jet PLA Jammed almost instantly while attempting to print. )
Specified filament diameter of 2.85 seems consistent across all spools I have received.
I Have printed with white, blue, green, black, pink, yellow, and grey colors with good success.
-Print temperature seems to be on the higher end (220C) using the fast PLA profile from lulzbot. Heat bed is 90 for the first layer and 70 for subsequent layers using kapton tape.
-For ABS I use 250C hotend with 110 bed initial layer to 90 on subsequent layers for the bed. Again using E3D V6 nozzle and kapton tape with the fast ABS Profile.
Using the above mentioned temperatures I have not had a single piece delaminate between layers with a layer height of .28 on my .4mm nozzle.