Visit YouTube to watch our full assembly video. 

Important Reminder:

The Y-axis of the A1 mini utilizes full-metal guide wheels, ensuring that users do not need to frequently adjust the motion components of the A1 mini. However, regular lubrication and cleaning are required to reduce wear and noise, maintain printer accuracy and lifespan, and effectively prevent rusting of the guide rails.

Each printer receives a certain level of lubrication before leaving the factory. However, only a small amount of lubricating oil is applied to the printer to avoid excessive oil that may drip onto the casing during transportation, causing noticeable stains and affecting the appearance.

Therefore, we strongly recommend applying an appropriate amount of lubricating oil to the Y-axis guide rails of your printer upon unboxing, ensuring that the entire rail is lubricated. 

The lubricating oil is included in the accessory box. Please refer to the accompanying video for instructions on how to apply the lubricant:

Picture of the Y-axis guide rails after proper lubrication.

Step 1: Unbox and take out the A1 mini, AMS lite, and their accessories

The protective foam may vary from the machine shown in the unboxing video. Please refer to the machine you have received for accurate information. For example, some machines may have protective foam installed beneath the heatbed, which needs to be removed during the unboxing process.

1. Remove the protective cardboard and foam from the top 

Some accessories may be embedded in the foam, so please check them carefully. Please take out the components one by one and avoid removing the plastic packaging bags from the box all at once.

2. Carefully read the quick start guide and familiarize yourself with the precautions for unboxing in advance. 

Take out the accessories, AMS lite, and the printer. When picking up the printer, support the rear cover of the Z-axis with your hand and avoid touching the metal rails of the Z-axis and X-axis with your hands.

Step 2: Check the accessories in the box

The packaging box includes the following items: A1 mini printer, AMS lite body, AMS lite stand and installation screws, AMS lite Rotary spool holder, Bambu Filament Swatches, purge wiper and its screws, spool holder with the bracket and its screws, PTFE tubes (580 mm *2, 700 mm *2), Textured PEI plate, Sample filament, Unclogging Pin Tool, Allen keys (H2 and H1.5), Heatbed Nozzle Wiper, Cable Organizer, Bambu Scraper Blade and its screws, Spare Filament Cutter, lubricating grease, Quick start guide, and Disclaimer and Safety Guidelines.

Step 3: Unlock the Z-axis limiter and tool head.

1. Remove the four screws to unlock the Z-axis limiter. 

The Z-axis limiter is used to ensure the printer’s safety during transportation.

2. Cut the zip-tie wrapped around the tool head.

3. Move the tool head slightly to the left and then remove the foam padding.

If there is protective foam on the heatbed and guide rails, it should be removed at this step.

Step 4: Tighten the heatbed screws.

Tighten the three screws circled in green to lock the heatbed. We suggest you move the heatbed slightly to a convenient position to use an Allen key.

These three screws are intentionally loosened during the factory assembly process to avoid damage to components during transportation. Therefore, at this step, you need to tighten them.

Step 5: Install the purge wiper

Slide in the Purge Wiper unit into the slot at the end of the X-Axis from the back to the front. Install the 1*M3-12 screw (For Purge Wiper) from the accessory box to fix the Purge Wiper in place.

Note: After installing the purge wiper, it should be parallel to and not collide with the left edge of the heatbed, as shown in the picture below:

Step 6: Install the spool holder

1. Install the spool holder base plate with the 2*M3-8 screws (ForSpool Holder) from the accessory box.  Please pay attention to the installation orientation.

If you want to print with AMS lite, this step would be optional.

2. Slide the spool holder into place from the top to the bottom. 

Ensure that the orientation of the spool holder matches the direction of the slot.

Step 7: Assemble the AMS lite

1. Put the AMS lite body on the stand. (cable on the upward end)

2. Secure the AMS lite with the 4*BT3-6 screws (For AMS Stand) from the accessory box

3. Slide the rotary spool holders on (all the way in), being careful to match colors to avoid damaging any parts. (as shown in the diagram, yellow matches with yellow, green matches with green)

The yellow rotary spool holders have a hexagonal clip inside, making aligning with the locking position relatively easier. The green rotary spool holders have a rectangular shape, so it is recommended to align them with the hole before insertion roughly, then move them parallelly with slight adjustments to ensure alignment with the locking position.

4. Place the AMS lite on the right side of the A1 mini printer after successfully installing the rotary spool holders.

5. Install PTFE tubes

As the pictures show, insert the 580 mm PTFE tubes into feeder coupler connectors 1 and 2. Insert the other end of the PTFE tube from port 1 into the left-rear side of the filament hub, and insert the other end of the PTFE tube from port 2 into the left-front side of the filament hub. (Viewed from the front to the back)

As the pictures show, insert the 700 mm PTFE tubes into feeder coupler connectors 3 and 4. Insert the other end of the PTFE tube from port 3 into the right-front side of the filament hub, and insert the other end of the PTFE tube from port 4 into the right-rear side of the filament hub. (Viewed from the front to the back)

Here is the overall visual representation of the completed installation of the 4 PTFE tubes:

Step 8: Install the cable organizer

Install the organizer as shown in the diagram. Clip the black cable into the smaller hole and secure the PTFE tubes into the other four larger holes. Please note that the cable organizer should be positioned close to the end of the tool head instead of the AMS lite.

The recommended distance between A1 mini and AMS lite is 50 m,m as shown in the diagram.

Step 9: Power on the printer and the AMS lite

Plug the AMS lite 4-pin connector into the port on the A1 mini. (either one); Ensure that the 4-pin cable is inserted correctly and aligned with the direction of the protection clip.

Please make sure to neatly organize the 4-pin cable of AMS lite and the braided cable of A1 mini separately, ensuring they do not cross over each other. This will avoid the two cables from tangling or pulling on each other when printing large-sized parts.

Connect the printer to the power source and switch on the A1 mini on the rear.

Please leave a safe space for heatbed movement. (as shown in the diagram)

Step 10: Place the textured PEI plate on the heatbed, and follow the on-screen prompts to complete the initialization and calibration process.

After powering on the printer, please follow the prompts on the screen to complete the initialization and calibration of the printer. 

If you skipped the network process and Bambu Handy binding steps during the unboxing process, you can still connect and bind the printer to Bambu Handy in the settings page after the printer calibration is completed.

Appendix: Installing the External Filament Spool Holder and Start the first print with A1 mini

If you want to use an external filament spool holder, you can follow the picture below to install the PTFE tube and the spool holder.

Due to limited space, please refer to the “A1 mini First Print Guide” for the tutorial on the first print. 

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