Genealogy / Archeology of the Greg's Wade's Geared Extruder

In this page I will illustrate (to the best of my knowledge) how the original design for the Wade's geared extruder has evolved in the last few years. Nowadays (early 2015) this extruder design is probably the most popular single extruder design among reprappers worldwide, and it has spawned countless remixes. It would be impossible to account for all the variants of this design available on the web but I will try my best to show its main "evolutionary line".

1st Gen: Wade's original design

This is actually documented right here in the wiki: Wade's_Geared_Extruder and you can find all the files for it on that same page.

Now, I understand that the original Wade's geared extruder from February 2010 is itself an evolution of an earlier extruder design by Adrian Bowyer and also includes many ideas from Nophead's early research on extruders. It seems it was not designed in OpenSCAD and I don't have any information on what CAD program Wade used.

All the files for this extruder are available both here on RepRap.org and also on [1].

2nd Gen: Gregs's Wade's Geared Extruder

(check Thingiverse)