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3. X-axis assembly

3. X-axis assembly
Relevant for:
Last updated 5 years ago
3. X-axis assembly
 Difficulty
Moderate
 Steps
19
 Available languages
ENCSPLESDEITFR
3D printed parts
3D printed parts
X-carriage
X-end-motor
X-end-idler
Some parts can slightly differ from the photos.
Preparing the rods
Preparing the rods
Preparing the rods
Preparing the rods
LM8UU linear bearings
8mm smooth rods (the longest ones)
Carefully slide linear bearings on rods.
Preparing the printed parts
Preparing the printed parts
Preparing the printed parts
Preparing the printed parts
Insert LM8UU linear bearing into the printed parts (X-end-motor and X-end-idler) as shown in the pictures.
The bearing should be in line with the X-ends as highlighted in the picture.
You can press on the flat surface for easier insertion.
Place two bearings in a way that the inner balls of the second bearing are rotated 45° compared to the first. This way you will achieve greater contact with the smooth rod. See the third picture for more details.
Assemble the X-axis base
Assemble the X-axis base
Assemble the X-axis base
Insert the rods with bearings fully into the printed parts.
Ensure the correct orientation of the parts and rods (the rod with 2 bearings must be on the side with the nut trap).
Insert the rods very carefully. Do not tilt the rods too much.
Preparing the X-end idler
Preparing the X-end idler
Preparing the X-end idler
Preparing the X-end idler
M3x18 screw (1 pc)
623h bearing with housing (1 pc)
M3nN nylock nut (1 pc)
Insert the 623h bearing into the X-end idler.
Secure it in position using a M3x18 screw.
Tighten it with a M3 nylock nut, but the idler (wheel) must rotate freely!
Prepare the X-carriage
Prepare the X-carriage
Prepare the X-carriage
Prepare the X-carriage
Place shorter 100mm zip ties and X-carriage exactly as shown in the picture.
Take the 4 zip ties from left side and slide them halfway in the slots (see the green arrows).
Take the remaining 2 zip ties from right and slide them halfway in the slots (see the blue arrows).
Ensure the correct orientation of zip ties. See the third picture for verification.
In the kit there are 160 and 100mm zip ties, use shorter ones for this step.
Placing the X-carriage
Placing the X-carriage
Ensure the correct orientation of X-carriage. Compared to previous steps the X-carriage is turned along it's side.
Place the X-carriage on the X-axis base as shown in the picture.
Tighten the X-carriage
Tighten the X-carriage
Tighten the X-carriage
Use pliers to tighten the zipties.
Make sure that bearings are in the position as shown in the picture (a bearing should be fully seated and bottomed out in the carriage).
Cleaning up
Cleaning up
Use pliers to cut off any excess ziptie.
Move the ziptie head to the position as shown in the picture.
Assemble the X-motor
Assemble the X-motor
Assemble the X-motor
M3x18 screw (3 pcs)
X motor (the one labeled as X axis)
Tighten the motor to the X-end-motor part.
Ensure the correct position of cables (Cables should face downwards).
Assemble the X-motor pulley
Assemble the X-motor pulley
Assemble the X-motor pulley
Assemble the X-motor pulley
Place GT2-16 pulley on the X motor shaft.
Adjust the position as seen in the picture (effective part of the pulley should be in axis with the X-end-motor cutout and one of the screws on pulley should face directly on the pad on shaft).
Recommended value X (gap between motor and pulley faces) is 2.5 mm or 0.1 inch. Your value can slightly differ.
Tighten up the pulley.
Assembling the X-endstop
Assembling the X-endstop
X-endstop
M2x12 screws (2 pcs)
Place the endstop on the printed part and insert M2x12 screws.
Ensure correct position as in the picture (The button on the endstop has to be aligned with the key on the X-end-motor part).
Don't tighten the screws of endstop completely. We will get to that later.
Don't use the cable colours to set correct orientation. Use the button on the endstop instead.
X-endstop alignment
X-endstop alignment
X-endstop alignment
Before tightening the screws push the endstop all the way towards the X-carriage as shown in the picture.
Tighten the screws.
X-Endstop check
X-Endstop check
Move the X-carriage as close as possible to the X-end-motor.
Make sure that you heard "click" sound and the X-endstop is triggered as shown in the picture.
Cable management
Cable management
Cable management
Use a ziptie to secure the X-endstop cable to the X-motor cable as close to the motor as possible.
Do not overtie the ziptie otherwise you can damage the cables.
When done, cut the overhanging part of the zip tie.
Cable wrapping
Cable wrapping
Cable wrapping
Use the smallest (in diameter) spiral wrap to wrap the cables.
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