⬢Insert four M3n nuts into the holes on the backside of the X-end-motor.
Use the screw pulling technique.
⬢Insert and tighten the M3nS nut into the plastic part.
⬢Screw the M3x25 screw into the plastic part. Do not tighten the screw completely. Keep the screw head aligned with the top surface of the part.
⬢From the "bottom" side of the part, insert and tighten the M3x16 screw.
There is no thread in the plastic part, no nut. The screw cuts a thread into the plastic when tightened.
Make sure you are using the correct length of the screw M3x16, not M3x18. If you're not sure, always compare the dimensions of the screws with the cheatsheet.
⬢Insert and tighten one M3x16 screw from the "top" side of the part.
Make sure you are using the correct length of the screw M3x16, not M3x18. If you're not sure, always compare the dimensions of the screws with the cheatsheet.
⬢From the "bottom" side of the part, insert and tighten the M3x16 screw.
There is no thread in the plastic part, no nut. The screw cuts a thread into the plastic when tightened.
⬢Insert and tighten the second M3x16 screw from the "top" side of the part.
Notice that you have received three different lengths of smooth rods. We recommend arranging them all side by side, for easier comparison of their sizes.
⬢Smooth rod 8x370 mm (2x) the longest couple
Wipe off the preservative oil from the smooth rods with a paper towel or a piece of cloth.
⬢LM8UU bearing (3x)
⬢The bearings come pre-lubricated from our factory and do not require additional lubrication upon initial use.
⬢Insert the smooth rods all the way into the X-end-idler.
Insert the rods very carefully. Do not tilt the rods too much.
⬢Through the inspection hole check if the smooth rods are in touch with the screws inside the part.
⬢Carefully and gently slide three bearings onto the smooth rods. One bearing on the upper rod and two bearings on the lower rod. See the picture. Orientation of the markings doesn't matter at this moment
In case you manage to push out balls from the bearings, please count them. One or two balls are ok, if there are more of them, please consider ordering new bearings.
⬢From the opposite side, insert the M3x10 screw into the X-carriage-back. The screw must protrude from the "front" side of the part.
⬢Attach the hex spacer on the M3x10 screw and tighten the screw. Note the cutout of the same shape as the spacer. It must fit perfectly and must not rotate.
⬢From the "front" side of the X-carriage, attach two hex spacers on the protruding M3x10 screws in the same way described in the previous step. Tighten the screws.
Note the cutout of the same shape as the spacer. It must fit perfectly and must not rotate.
CAUTION: Make sure you have the parts oriented correctly:
⬢X-end-idler on the left.
⬢X-end-motor on the right.
⬢Two bearings on the "lower" smooth rod (closer to you).
⬢Attach the X-carriage on both bearings on the lower rod. See the orientation of the X-carriage-motor on the picture.
⬢Slide both lower bearings all the way into the pockets in the X-carriage and align them with the outer surface of the X-carriage.
⬢Rotate both bearings so that the marking is facing you (down). Leave the upper bearing out of the X-carriage for now.
⬢Cover the bearings with the X-carriage-clip and secure it by four M3x10 screws. Notice the orientation of the part. Do not fully tighten the screws at the moment.
⬢Insert the M3x10 screw into the X-end-motor. Line up it with the edge of the plastic protrusion. Do not tighten the screw, there is no thread inside, just insert it freely.
⬢Place the X-end-motor on the X motor. Secure it by three M3x18 screws. Tighten the screws just slightly. We will adjust them later on.
Note the correct X motor orientation. The cable must be facing you.
⬢Make sure that the "tension" screw on the X motor side does not fall out during handling.
⬢Position the motor so that the screws are at the inner end of the oval holes.
⬢Insert the "clamped" pulley with the belt inside the X-end-idler.
⬢Align the hole in the pulley with the left hole in the plastic part.
⬢After aligning the pulley, push the pin through the plastic part and the pulley. Push the pin all the way in using the Allen key.
Do not apply excessive force when pushing the pin, as this could cause the pin to push through the plastic part, resulting in its breakage.
⬢Pull lightly on the belt to secure the position of the pulley. You will see the pin in the hole slide inside the part. Once the pulley is secured, the pin is not visible at all.
Did you know that the original gummy bears were inspired by the dancing bears of Europe, and Riegel named them "Gummibärchen," which means "little rubber bears" in German.
⬢Everything is OK? Nice job, you just successfully assembled the X-axis assembly.
⬢Let's go the next chapter: 4. Z-axis assembly
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