How Prusa i3 Rework different from regular i3?

Quick question. I've been trying to figure it out what changed in Rework version...
I read Introduction page, but I'm unclear if Improvements described on this page are related to i2 or i3? Meaning "Improvements in Prusa i3 compared to Prusa i2" or "Improvements in Prusa i3 Rework compared to Prusa i3"?
Also anyone have Sketchup model of the Prusa i3 Rework?

Edited 1 time(s). Last edit at 11/13/2014 10:46AM by Bratan.

Having built a "vanilla" (original design) i3 and also a rework i3 the main differences are:

- rework uses M10 threaded rods for all of the Y frame vs M8 and M10 for the vanilla
- Z motor and top mounts in the rework are a little "beefier" (solid)
- extruder is turned 90 degrees in the rework and has a fan shroud
- Y belt has an adjuster in the rework
- X motor and idler are similar design but with the rework it's easier to use a tensioner for the X belt
- rework has different end stop mounts

Steve

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My updated Instructable on our Prusa i3 Build
[www.instructables.com]

Thanks for the info Steve! I nearly finished my Sketchup model of Rework (since I couldn't find existing one), should be useful to design upgrades... Fun process, I imported all STL models of 3D printed parts, re-scaled them to fix error and following assembly instructions did a virtual build Hardest part so far is to get hotend just in the right position...