diff --git a/docs/assembly/extruder_bridge_assembly_13_after.png b/docs/assembly/extruder_bridge_assembly_13_after.png
index 9e70ec5..73cde19 100644
Binary files a/docs/assembly/extruder_bridge_assembly_13_after.png and b/docs/assembly/extruder_bridge_assembly_13_after.png differ
diff --git a/docs/assembly/extruder_bridge_assembly_13_before.png b/docs/assembly/extruder_bridge_assembly_13_before.png
index be6c507..ca8cffe 100644
Binary files a/docs/assembly/extruder_bridge_assembly_13_before.png and b/docs/assembly/extruder_bridge_assembly_13_before.png differ
diff --git a/docs/assembly/index.html b/docs/assembly/index.html
index 6302123..fe36d8a 100644
--- a/docs/assembly/index.html
+++ b/docs/assembly/index.html
@@ -55,13 +55,13 @@ UL {
 <table><tr><td class="befor"><img src="motor_mount_assembly_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="motor_mount_assembly_after.png"></td></tr></table>
 </li>
 <li class="section"><h2>XY Motor Segment Assembly</h2>
-<div class="desc">Seat the stepper motor with drive gear in the X/Y motor rail segment. Clamp it into place with a motor mount plate with micro-switch. Repeat this to make a second XY motor segment assembly.</div>
+<div class="desc">Seat the stepper motor with drive gear in the X/Y motor rail segment. Clamp it into place with a motor mount plate with micro-switch. Repeat this to make a second XY motor segment assembly. On one, route the wiring out a side wiring access hole opposite the limit switch, and on the other, route it out one end.</div>
 <table><tr><td class="befor"><img src="xy_motor_segment_assembly_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="xy_motor_segment_assembly_after.png"></td></tr></table>
 </li>
 <li class="section"><h2>Y Axis Assembly</h2>
 <ul>
 <li class="step"><h3>Step 1</h3>
-<div class="desc">Join a rail segment to each end of another motor rail assembly. Route wiring out the side wiring access hole on the motor rail segment.</div>
+<div class="desc">Join a rail segment to each end of another motor rail assembly.</div>
 <table><tr><td class="befor"><img src="y_axis_assembly_1_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="y_axis_assembly_1_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 2</h3>
@@ -109,7 +109,7 @@ UL {
 <table><tr><td class="befor"><img src="x_axis_assembly_4_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="x_axis_assembly_4_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 5</h3>
-<div class="desc">Connect the Y axis assembly to the XY joiner on the X axis partial assembly.</div>
+<div class="desc">Connect the Y axis assembly to the XY joiner on the X axis partial assembly. Route the Y axis wiring through the front hole in the XY joiner.</div>
 <table><tr><td class="befor"><img src="x_axis_assembly_5_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="x_axis_assembly_5_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 6</h3>
@@ -121,7 +121,7 @@ UL {
 <li class="section"><h2>Z Tower Assembly</h2>
 <ul>
 <li class="step"><h3>Step 1</h3>
-<div class="desc">Seat the stepper motor in the Z motor rail segment. Clamp it into place with a motor mount plate without micro-switch. Repeat this to make a second Z motor segment assembly.</div>
+<div class="desc">Seat the stepper motor in the Z motor rail segment. Clamp it into place with a motor mount plate without micro-switch.</div>
 <table><tr><td class="befor"><img src="z_tower_assembly_1_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="z_tower_assembly_1_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 2</h3>
@@ -133,11 +133,11 @@ UL {
 <table><tr><td class="befor"><img src="z_tower_assembly_3_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="z_tower_assembly_3_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 4</h3>
-<div class="desc">Press-fit the lifter rod assembly to the mounted motor shaft. Make sure the flatted side of the shaft is aligned with the flat of the shaft hole. Repeat this with the other Z motor segment assembly.</div>
+<div class="desc">Press-fit the lifter rod assembly to the mounted motor shaft. Make sure the flatted side of the shaft is aligned with the flat of the shaft hole.</div>
 <table><tr><td class="befor"><img src="z_tower_assembly_4_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="z_tower_assembly_4_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 5</h3>
-<div class="desc">Attach two rail segments to the top of the motor Z lifter assembly. Repeat this with the other motor Z lifter assembly.</div>
+<div class="desc">Attach two rail segments to the top of the motor Z lifter assembly.</div>
 <table><tr><td class="befor"><img src="z_tower_assembly_5_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="z_tower_assembly_5_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 6</h3>
@@ -145,7 +145,7 @@ UL {
 <table><tr><td class="befor"><img src="z_tower_assembly_6_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="z_tower_assembly_6_after.png"></td></tr></table>
 </li>
 <li class="step"><h3>Step 7</h3>
-<div class="desc">Attach the Z rail assembly to the top of the YZ joiner assembly.</div>
+<div class="desc">Attach the Z rail assembly to the top of the YZ joiner assembly. Repeat steps 1 through 7 to make a second Z tower.</div>
 <table><tr><td class="befor"><img src="z_tower_assembly_7_before.png"></td><td class="arrow"><img src="arrow.png"></td><td class="after"><img src="z_tower_assembly_7_after.png"></td></tr></table>
 </li>
 </ul>
diff --git a/full_assembly.scad b/full_assembly.scad
index 10f6903..9942f41 100644
--- a/full_assembly.scad
+++ b/full_assembly.scad
@@ -393,7 +393,7 @@ module x_axis_assembly_4(slidepos=0, explode=0, arrows=false)
 module x_axis_assembly_5(xslidepos=0, yslidepos=0, explode=0, arrows=false)
 {
 	// view: [150, 0, 110] [50, 0, 330] 2500
-	// desc: Connect the Y axis assembly to the XY joiner on the X axis partial assembly.
+	// desc: Connect the Y axis assembly to the XY joiner on the X axis partial assembly. Route the Y axis wiring through the front hole in the XY joiner.
 	x_axis_assembly_4(slidepos=xslidepos) {
 		if ($children>0) children(0); else nil();
 		if ($children>1) children(1); else nil();
@@ -408,7 +408,7 @@ module x_axis_assembly_5(xslidepos=0, yslidepos=0, explode=0, arrows=false)
 			// Construction arrows.
 			if(arrows && explode>75) {
 				left(explode*1.25) {
-					arrow(size=explode/3);
+					arrow(size=2*explode/3);
 				}
 			}
 		}
@@ -445,7 +445,7 @@ module x_axis_assembly_6(xslidepos=0, yslidepos=0, explode=0, arrows=false)
 module z_tower_assembly_1(slidepos=0, explode=0, arrows=false)
 {
 	// view: [72, 125, -25] [345, 20, 0] 1200
-	// desc: Seat the stepper motor in the Z motor rail segment. Clamp it into place with a motor mount plate without micro-switch. Repeat this to make a second Z motor segment assembly.
+	// desc: Seat the stepper motor in the Z motor rail segment. Clamp it into place with a motor mount plate without micro-switch.
 	motor_width = nema_motor_width(17)+printer_slop*2;
 
 	rail_z_motor_segment();
@@ -541,7 +541,7 @@ module z_tower_assembly_3(explode=0, arrows=false)
 module z_tower_assembly_4(slidepos=0, explode=0, arrows=false)
 {
 	// view: [80, 195, 40] [0, 0, 0] 1500
-	// desc: Press-fit the lifter rod assembly to the mounted motor shaft. Make sure the flatted side of the shaft is aligned with the flat of the shaft hole. Repeat this with the other Z motor segment assembly.
+	// desc: Press-fit the lifter rod assembly to the mounted motor shaft. Make sure the flatted side of the shaft is aligned with the flat of the shaft hole.
 	z_tower_assembly_1(slidepos=slidepos) {
 		up(explode*1.2) {
 			z_tower_assembly_3();
@@ -562,7 +562,7 @@ module z_tower_assembly_4(slidepos=0, explode=0, arrows=false)
 module z_tower_assembly_5(slidepos=0, explode=0, arrows=false)
 {
 	// view: [15, 80, 300] [60, 0, 60] 1900
-	// desc: Attach two rail segments to the top of the motor Z lifter assembly. Repeat this with the other motor Z lifter assembly.
+	// desc: Attach two rail segments to the top of the motor Z lifter assembly.
 	up(motor_rail_length/2) {
 		yrot(90) zrot(90) z_tower_assembly_4(slidepos=slidepos) {
 			if ($children > 0) zrot(-90) children(0);
@@ -630,7 +630,7 @@ module z_tower_assembly_6(explode=0, arrows=false)
 module z_tower_assembly_7(slidepos=0, explode=0, arrows=false)
 {
 	// view: [20, 50, 270] [70, 0, 30] 1700
-	// desc: Attach the Z rail assembly to the top of the YZ joiner assembly.
+	// desc: Attach the Z rail assembly to the top of the YZ joiner assembly. Repeat steps 1 through 7 to make a second Z tower.
 	left(platform_length) {
 		z_tower_assembly_6() {
 			if ($children > 2) children(2);
diff --git a/wiki b/wiki
index 49006fc..dab429d 160000
--- a/wiki
+++ b/wiki
@@ -1 +1 @@
-Subproject commit 49006fc45bbbbe0bbf8577d55762daf08c8658fd
+Subproject commit dab429d9f63102748c657783c49a48def7c7a4f7