12. Assembly of the x-Axis

(1) 1.5x60mm Hexagon Socket Head Screwdriver for Electronic Applications

(2) 2.5x75mm Hexagonal Screwdriver

(3) Electronics Pliers

(4) Engineer Scriber

(5) Soft-faced Hammer with Cellidor Head Sections

(6) Super Lube

(7) Injectors

(8) Isopropanol (optional)

(1) 2x x-Rod 380mm

(2) Stepper Motor

(3) LMU10 Bushing

(4) 3x LMUW10 Bushing

(5) GT3 Toothed Pulley

(6) 2x POM Nut

(7) x-Motor Holder

(8) x-Idler

(1) 8x Black M3 Washers

(2) 2x M3 Nuts

(3) 10x M3 Self-Securing Nuts

(4) M3 Square Nut

(5) 4x M3x12mm Hexagon Socket Head Cap Screws

(6) 4x M3x14mm Hexagon Socket Head Cap Screws

(7) 2x M3x16mm Hexagon Socket Head Cap Screws

(8) 4x M3x30mm Hexagon Socket Head Cap Screws

To prepare for later, 3x LMUW10 bushings and one LMU10 bushing must be placed in isopropanol for 15min.

Insert 2x M3 Self-Securing Nuts into the back of the x-motor holder.

Insert 2x M3 Nuts into the bottom of the cable guide at the back of the x-motor holder.

Tighten the 2x M3 Self-Securing Nuts and the 2x M3 Nuts with a screwdriver or an engineer scriber if necessary.

Place a stepper motor on the back of the x-motor holder. When doing so, pay close attention to the alignment (see Fig. 2).

Make sure that the cables are routed through the cable holder.

Hold on to the stepper motor and turn the x-motor holder. Place 4x M3 Washers in the four openings of the x-motor holder. Then, fasten the stepper motor to the x-motor holder with 4x M3x12mm Hexagon Socket Head Cap Screws.

Now, you need the bushings you have prepared in the first step. They must be dryed and then greased with Super Lube.

One of the greased LMUW10 bushings is pushed into the x-motor holder so that it is centered. Then the bushing is fixed with 2x M3x30mm Hexagon Socket Head Cap Screws.

When doing so, make sure that you only tighten the M3 Hexagon Socket Head Cap Screws minimally so that the screw is flush with the M3 Self-Securing Nuts.

Check the hole for the POM nut for filament protrusions and remove them with a knife or scalpel if necessary.

Insert 2x M3 Self-Securing Nuts into the designated slots.

Insertion can be made easier with the help of an engineer scriber.

Now place a POM nut in the hole on the top.

Use 2x M3 Washers and 2x M3x14mm Hexagon Socket Head Cap Screws to fix the POM nut.

Here, make sure that you screw the screws into the threaded holes of the POM nut.

Do not tighten the 2x M3x14mm Hexagon Socket Head Cap Screws completely at this stage.

Slide the GT3 pulley onto the shaft of the stepper motor.

The motor shaft has two grub screws. Make sure that one of them is aligned with the flat surface of the shaft and tighten both grub screws.

Leave a narrow gap between the pulley and the motor surface to avoid friction.

Insert a M3 Square Nut into the slot on the back of the x-motor holder using electronics pliers

The x-motor mount is now fully assembled.

Insert 2x M3 Self Securing Nutsinto the back of the x-idler.

Insert 2x M3 Self-Securing Nutsinto the two slots on the top and bottom of the x-idler and lightly tightened them with 2x M3x16mm Hexagon Socket Head Cap Screws.

Push one of the greased LMUW10 bushings into the x-idler and ensure that it is centered.

Fasten it with 2x M3x30mm Hexagon Socket Head Cap Screws .

Make sure that you tighten the Hexagon Socket Head Cap Screws only minimally, as they should fit flush with the M3 Self-Securing Nuts.

Check the hole for the POM nut for filament protrusions and remove them with a knife or scalpel if necessary.

Insert 2x M3 Self-Securing Nutsinto the designated slots.

Insertion can be made easier with the help of an engineer scriber.

Now, put a POM Nut into the hole on the top.

Take 2x M3 Washers and 2x M3x14mm Hexagon Socket Head Cap Screws to fix the POM nut.

Make sure that you screw the screws into the two threaded holes of the POM nut.

Do not tighten the 2x M3x14mm Hexagon Socket Head Cap Screws completely for the time being.

The x-idler is now fully assembled.

Place one of the 380mm x-Rods into one of the designated holes. Carefully tap the rod into the x-idler with a soft-faced hammer.

Repeat this step with the second rod.

Make sure the rods are pushed in all the way down by looking through the small window on the back of the x-idler.

Align the x-axis as shown in the first picture. Slide an LMUW10 bushing onto the upper x-rod and an LMU10 bushing onto the lower x-rod.

Remember to grease the bushings with Super Lube beforehand.

Align both x-rods with the holes in the x-idler and gently tap the x-idler with a soft-faced hammer.

The x-Idler has a small window on the back that allows you to check whether the rods are properly positioned.

The assembly of the x-axis is completed now.

Continue with instructions 13. Installation and Wiring of the x-Axis.