z-axis: ignore z_delta setting

Due to oversight, this ends up causing the smooth rod to shift 2mm
closer to the board but not the motor when using an lm10uu bearing,
making the z-axis misaligned with the smooth rod mount on the x-ends,
causing mysterious ribbing and binding when the leadscrew nuts are
tightened.

diff --git a/box_frame/inc/settings.scad b/box_frame/inc/settings.scad
index c2944ec..3fa92aa 100644 (file)
--- a/box_frame/inc/settings.scad
+++ b/box_frame/inc/settings.scad
@@ -10,7 +10,9 @@ idler_width = max(belt_width, (idler_bearing[1] > 7 ? idler_bearing[1] : 7)) + 2
 
 //deltas are used to enlarge parts for bigger bearings
 xy_delta = ((bushing_xy[1] <= 7.7) ? 0 : bushing_xy[1] - 7.7) * 0.9;
-z_delta = (bushing_z[1] <= 7.7) ? 0 : bushing_z[1] - 7.7;
+
+// fixme: this seems useless now but ... ?
+z_delta = 0; //(bushing_z[1] <= 7.7) ? 0 : bushing_z[1] - 7.7;
 
 m3_nut_diameter_bigger = ((m3_nut_diameter / 2) / cos (180 / 6)) * 2;