The Winchester G2 is our brand new extruder system which is extremely reliable and capable of higher temperatures and extruding more materials than its predecessor. Some of our BETA customers are getting a crack at testing our newest extruders, while all new Series 1s shipped after around July 15, 2014 come with the G2 pre-installed.
More extensive documentation for the G2 will be available as soon as the G2 is available for sale. For the moment, this documentation is for customers testing the G2 extruder.
-You will need new firmware to perform the upgrade. This firmware is for the RUMBA motion control board and requires uploading stuff from your computer, to the motion control board directly over USB. You can get it from here.
-The extruder comes they way it is supposed to look when it's fully assembled. You will have to take some of it apart in order to mount it to the motor.
-The needle itself has a retaining ring around near the top of it inside the block (which you will see when you unscrew the clamps). Let that retaining ring be your guide to where the needle should be in relation to the clamps.
-The location of the heating element on the needle is very specific, so try to avoid shifting it, though those two parts are relatively inseparable by hand.
-Take note of how the fans are hooked up.
-You need also to install the fan jumper included with the extruder. Check out the photos of the E-tray to see where it's connected.
-You also need to reapply thermal grease (which wasn't included in the first handful that we shipped) every time you open up the two clamps. The amount needed hasn't been fully been determined on upgrade extruders. Avoid covering up the holes in the clamps, as that will constrict airflow from the rear cooling fan (which is what that second fan jumper is for running).
Below are some pictures of what the extruder looks like when it's being installed and when it's finished.
We know that these instructions are very rough around the edges, so if you need any clarification, please ask by creating a support request.