these four parts to assemble the Spring-loaded Drive Block alternative to the
MakerBot Replicator 2 extruder. The design files and assembly instructions for
this system are available on the
Thingiverse page. Print the available parts and attach them as instructed.
Check out Makerbot's
video for more information.
The Spring-loaded Drive Block is a simple system for pressing the filament
against the drive gear using a constant amount of force.
This is probably the smallest Arduino controller speically designed for controlling the servo. It features a 12 standard servo control capbility with Xbee socket which can be used to control helicopter or UAV via the Xbee link. The feather weight (7.5g) make it an ideal controller for those application that has limited payload. The build in regulator is allow the input voltage vary from 3.5-8V which fits the most power supply without any modification.