Adjustable Extruder Drive Block Upgrade for Replicator 2X

thingiverse

This adjustable extruder block design allows fine-tuning of pressure applied to the filament by the idler ball bearing, and is suitable for MakerBot Replicator 2X Desktop 3D printers. It's based on previous designs from Thingiverse (http://www.thingiverse.com/thing:136589 and http://www.thingiverse.com/thing:52203), but is not intended as a replacement for MakerBot's original extruder block. The adjustable design offers step-less filament grip pressure adjustment, a built-in filament dust filter with sponge, and a cover plate to protect stepper motor cables and connectors. All parts can be 3D printed in ABS plastic for optimal strength and heat resistance. The parts list includes 2 mm hex key, water pump pliers, beak pliers, and super glue. Detailed instructions are available at http://bit.ly/1eaYi3p or via the YouTube video at http://youtu.be/Z5md9XLeb-o. This design is a variation of current Adjustable Drive Block Upgrade for Replicator 2 and 1, which in turn is a variation of Spring-loaded Replicator 2 Drive Block, derived from three other previous designs. The MakerBot Replicator 2X Desktop 3D printer is best suited to 3D print models made of ABS plastic filament, which requires temperature-regulated and stable conditions. The adjustable extruder block features a lever left, lever right, base left, base right, bearing cover left, bearing cover right, and stepper motor cable cover, all 3D-printed parts. Fasteners and ball bearings can be reused from the original block. This is an experimental design, so use at your own risk. Learn from your experience using it.