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Needle-nose pliers for zip tie trimming.
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2.5mm Allen key for M3 screws
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2mm Allen key for nut alignment
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For the following steps, please prepare:
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X-end-motor (1x)
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X-end-idler (1x)
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Linear bearing (4x)
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M3x18 screw (2x)
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M3nN nyloc nut (1x)
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M3nS nut (1x)
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623h bearing with housing (1x)
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Insert LM8UU linear bearings into the printed parts (X-end-motor and X-end-idler) as shown in the picture. Make sure the first bearing in each printed part is pushed all the way down.
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First pair of bearings should be in line with the top surface on both X-ends.
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Second pair of bearings should be seated on the rim (close to the lower surface) on both X-ends.
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Insert nut all the way in (deeper than in the picture) and then add the screw. For now, we need the screw just to hold in place. Tighten the screw, until its head almost reaches the surface of the printed part. We will adjust the final position later.
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Make sure the M3x18 screw is not visible in the marked hole as it will block other screw in future step. If you can see the screw in the hole now, please release it slightly.
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Insert the M3nN nyloc nut in the X-end-idler.
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Insert the 623h bearing into the X-end idler.
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Secure it in place using an M3x18 screw.
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Place your finger on the bearing and ensure it can rotate freely. If needed adjust the screw.
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Take remaining smooth rods and compare their length. For X-axis you need longest rods (370 mm).
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Linear bearing (3x)
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Insert the rods with bearings fully into the printed parts.
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Ensure the correct orientation of the parts and rods.
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There is a special opening in the top/bottom of both X-ends. Check if you pressed the smooth rod all the way in.
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For the following steps, please prepare:
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X-axis motor (1x)
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GT2-16 pulley (1x)
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There is a flat part on the motor shaft, rotate it upwards.
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One of the screws must be facing directly against the pad (flat part) on the shaft. Slightly tighten both screws.
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Don't press the pulley against the motor. Leave a gap so the pulley can rotate freely.
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Prepare M3x18 screws (3x)
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Prepare the motor for X-axis with an assembled pulley.
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Place the X-axis on the motor as shown in the picture.
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Insert the M3x18 screws and tighten them.
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X-axis is done!
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Check the final look, compare it to the picture.
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Checked everything? It's time for: 4. Z-axis assembly
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11 Comments
thanks guys!
Inserting the rods in the printed parts was a pain. I had to use a ratchet to push them all the way in.
Had similar issues with the rods….. managed to get them in cocking the axis like a shotgun (index on the longer part and palm on the flat part)
Be fairly strong, but gentle!