Before you begin, please read and follow these safety guidelines:
- Power Off: Ensure the printer is turned off and unplugged from the power source.
- Hot Surfaces: Wait for all components to cool down to avoid burns.
- Sharp Edges: Be cautious of sharp edges on metal parts.
- Electrical Safety: Avoid touching electrical components.
Tools Required
Parts Included
- 2x Y-EndStop
- 4x M3 Screws
- 4x M3 Nuts
Y-EndStop Installation Guide

Note: Ensure the endstops are oriented correctly.
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Position the Endstops:
- Place the endstops as shown in the image above, ensuring they are oriented correctly.
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Secure the Endstops:
- Use the provided M3 screws and nuts to attach the endstops.
- Use the printed Y-EndStop Tool to hold the M3 nuts in place during installation.


Important: The bolts on the backs of the tool heads must be positioned diagonally, with the upper screws closer to the printer's outer sides and the lower ones closer to the middle.
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Remove the Aluminum Plate:
- Use the 2.5mm Hex Allen key to remove the two screws securing the aluminum plate on the back of the tool head.
- Use the 2mm Hex Allen key to remove the bottom screw, freeing the aluminum plate completely.
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Relocate Extruder Screws:
- Carefully loosen one of the screws on the extruder using the PH2 Phillips screwdriver. Be cautious not to strip the screw.
- Move the loosened screw to the opposite hole diagonally (either horizontally or vertically).
- Repeat this process for the second screw, moving it to the remaining free hole.
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Reattach the Aluminum Plate:
- Position the aluminum plate back onto the tool head.
- Lightly tighten the bottom screw using the 2mm Hex Allen key.
- Lightly tighten the two upper screws using the 2.5mm Hex Allen key.
- Finally, securely tighten all three screws on each side.
After installation, you must update the firmware to the latest version compatible with V2 printers equipped with Y-EndStops.
After installing the endstops and updating the firmware, the homing process should proceed as follows:
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Initial Movement:
- The crossbar moves to the front end, then slightly back, and forward again to calibrate.
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Y-Axis Homing:
- The crossbar moves to the maximum back position.
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X and U-Axis Homing:
- The left head moves to the far left (X-axis).
- The right head moves to the far right (U-axis).
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Endstop Alignment Check:
- The heads move slightly away from the sides.
- The printer aligns the crossbar along the Y-axis; one side may adjust slightly forward or backward.
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Final Calibration:
- The printer re-homes the X and U axes if necessary.
Note: The homing process should be smooth without any unusual noises or movements. If it differs significantly from this description, please record a video and contact support.
- Error Message: If the crossbar adjustment during Y-axis homing exceeds the allowed limit, you will be notified in the web interface.
- Visual Inspection: When homing the Y-axis, observe the crossbar correction. It should not twist more than 1 mm.