Added bracing to extruder platform, and endstop standoffs.

config.scad

@@ -38,11 +38,12 @@ lifter_nut_size    =  17.4; // mm
 lifter_nut_thick   =   9.3; // mm
 lifter_thread_size =   3.175; // mm lift per revolution
 
-endstop_hole_spacing = 19;   // mm
-endstop_hole_inset   =  3.2; // mm
-endstop_hole_hoff    = 10;   // mm
-endstop_click_voff   =  4;   // mm
-endstop_screw_size   =  3;   // mm
+endstop_hole_spacing = 19; // mm
+endstop_hole_inset   =  4; // mm
+endstop_hole_hoff    = 10; // mm
+endstop_click_voff   =  4; // mm
+endstop_screw_size   =  3; // mm
+endstop_standoff     =  2; // mm
 
 // This is the slop needed to make parts fit more exactly, and may be
 // printer dependant.  Printing a slop calibration plate should help