Solidoodle Extruder Jigsaw replacement

Your Jigsaw is cracking? Want to try alternate materials?
Need a replacement on hand to keep your doodle at attention?

Based on Tom_Korn's Extruder Jigsaw (http://www.thingiverse.com/thing:48767), converted to CAD friendly .DXF file. Included is SW model files for fitment checks and your own modifications. Pair with a Nema 17 stepper motor CAD model and make sure your stuff is going to fit before you make it.
Note: I have not done any fitment checks yet, but I hope to make my replacement parts out of aluminium, with a modification to part A to allow for an observation window similar to that of the original.