readme explains the most recent stl changes

diff --git a/stl/readme.txt b/stl/readme.txt
index 15a3b7c..898cd41 100644 (file)
--- a/stl/readme.txt
+++ b/stl/readme.txt
@@ -3,3 +3,29 @@ There are two variants of the Repap Wilson design.  Some of the RP parts are com
 The parts that are specific to one version or the other are located in the respective subfolders.
 
 The BOM will tell you how many of which parts you will need to build the printer.
+
+Notes about updates:
+
+6/21/14 - I've modified a few models described below:
+
+1. The Y belt holder now has a tensioner (yay) affixed to the side. Use
+   a M3 x 20 or longer screw and nut to push the little round piece against
+   the side of the belt after assembly.  
+
+2. The fan duct for the extruder has been redesigned so that there are 
+   separate outlets for the top of the hot end and below the nozzle.  This
+   has been working great for me for PLA; ABS prints may not want that lower
+   outlet blowing on the print so I'll archive the original fan duct as well.
+
+3. The extruder body itself should now print better.  The opening for the 
+   608 bearings on the sides has been marginally increased, as has been the
+   J-Head hole on the bottom.  The opening for the hobbed bolt was cleared
+   out to remove some extraneous support material.  Also, the distance 
+   between the M3 screws for the hot end attachment was decreased by about
+   1mm to get a better grip on the J-Head.
+
+4. The Y ends for the TS were changed just a wee bit to make the holes come
+   out more suitable (when sliced and printed with a .5mm nozzle) and also
+   to add .5mm of height to the feet so that the printer won't tend to rock
+   on the central frame.
+