build manual edits

docs/machines/3DPrinter/Step by Step Assembly.md

@@ -464,27 +464,13 @@ Repeat exact same process as in previous Left Side frame subassembly
 
 
 
-### 2. Z-axis upper mounts installation (2)
-
-#### Parts required
-
- 1. Preassembled Z upper mount (2)
- 2. M5x12mm Bolt (4)
- 3. M5 Hammernut (4)
- 4. 62 mm spacer
- 5. Allen wrench #2.5
 
-#### Assembly process
-
-- Mount Z axis upper mount assembly with spacer placed to front side of frame
-- Insert M5x10 BHCS (2) with Hammer nut (2) into mount and tighten with #2.5 allem wrench
-- Repeat process on right side of frame
 
 ### 3. Z-axis lower mounts installation (2)
 
 #### Parts required
 
-1. Preassembled Z lower mount (2)
+1. Preassembled Z axis lower mount (2)
 2. M5x12mm BHCS (8)
 3. M5 Hammernut (8)
 4. 62 mm spacer (1)
@@ -492,11 +478,31 @@ Repeat exact same process as in previous Left Side frame subassembly
 
 #### Assembly process
 
-Use X mm spacer to align lower Z mount 
+- Use 62mm spacer to align lower Z mount to front side of frame
+- Tighten M5x12mm BHCS (4) pre-installed on lower Z mount
+- Install M5x12mm BHCS (2) with M5 hammer nut on underside of lower Z mount
+- Install the second lower Z mount on right side following above process
 
 ### 4. 8mm rods insertion in Z axis lower mounts
    1. 8mm smooth rod (4)
 
+### 2. Z-axis upper mounts installation (2)
+
+#### Parts required
+
+ 1. Preassembled Z upper mount (2)
+ 2. M5x12mm Bolt (4)
+ 3. M5 Hammernut (4)
+ 4. 62 mm spacer
+ 5. Allen wrench #2.5
+
+#### Assembly process
+
+- Mount Z axis upper mount assembly with 62mm spacer placed to front side of frame
+- Insert M5x10 BHCS (2) with Hammer nut (2) into mount and tighten with #2.5 allem wrench
+- Repeat process for second Z axis upper mount on right side of frame
+
+
 ### 5. Build Platform Installation (1)
    1. Heatbed (1)
       1. 3mm MK3 Heat Bed (1)