wmb_nut_behind_min = 5;
wmb_nut_th = 3.84 + 0.75;
wmb_mount_wall = 4.5;
-wmb_mount_gap_xy = 0.5;
-wmb_mount_gap_z = 0.5;
+wmb_mount_gap_xy = 0.1;
+wmb_mount_gap_z = 0.2;
wmb_mount_y_width = 10;
wmb_bottom_gap = 35; // includes allowance for padding, etc.
wmb_bottom_th = 7;