FarmLoop Stage 2 assembly, Elegoo Centauri Carbon

Please read through the entire guide before beginning the installation. Ensure you have all prerequisites ready to avoid interruptions during assembly.

This guide covers installing FarmLoop Stage 2 on the Elegoo Centauri Carbon.

Prerequisites

• Elegoo Centauri Carbon with latest firmware installed
• FarmLoop Stage 2 kit - door-opener actuator, bender actuator and holders, wire harness, limit switch, pusher head, FarmBoard PCB, and mounting hardware
• FarmLoop Pro subscription, sign up at app.3d-farmers.com - not required if you already have a SimplyPrint Print Farm subscription (see SimplyPrint integration)
• A clean, flat work surface large enough to lay every part out

Components used in this guide:

• Door-opener button, rubber ring, and metal ring
• Door-opener linear actuator
• Bender linear actuator, bender bracket, and 2 levers, joined with an M4 bolt
• 2 bender holders
• Limit switch
• Printer’s top lid
• Rear rubber feet and 1 tilted foot (right side)
• Printed door hinge, secured with M3 bolts
• Wire harness, cable bracket, and side cable bracket
• FarmBoard PCB and PCB holder
• Pusher head

Printed-part versions may vary

The 3D-printed parts have gone through minor revisions over time and may look slightly different (color, small shape tweaks) from the photos in this guide. Installation is identical regardless of version.

Before you start

• Power off and unplug the printer before installing any hardware.
• Raise the bed to the middle of the gantry before powering off - this gives you much more room to install the bender. This applies to any CoreXY-style printer, the Centauri Carbon included.
• Parts are designed to fit smoothly - if a component needs excessive force, stop and check orientation.
• Route all cables away from moving parts.

Hardware assembly

1. Assemble the door opener

1. Attach the wire to the terminals before pressing the button into place - it’s much easier to reach now than after the button is seated in the hole.
2. Press the button into the designated hole in the lid.

3. Fix the button using the rubber ring and metal ring.

4. Slide the actuator into the bottom part until fully seated.

5. Align the lid with the base and press them together until they click/lock into place.

2. Set up the benders

1. Slide the actuator into the bracket (cable should be at the bottom).

2. Assemble the two levers using an M4 bolt.

3. Attach the lever group to the actuator using an M4 bolt.

4. Assemble the two bender holders together.
5. Attach the bender to the bender holder at a tilted angle.

6. Press the limit switch into the slot in the right part.

3. Prepare the 3D printer

1. Remove the printer’s top lid and set it aside.
2. Remove the 4 bolts at the front panel.

3. Flip the printer.
4. Remove the two rubber feet at the back and replace the right one with a tilted foot.

5. Flip the printer back.
6. Lift the printer slightly to put the actuator-holder foot in the correct position.

7. Remove the bottom two screws from the original door hinge - position the new door hinge and reinsert two M3 bolts to secure it.

8. Insert the wire harness into the print room through the opening.

9. Remove the 4 bolts on the side of the printer’s right wall - you’ll reuse them in the next step.
10. Put the cable bracket on and secure it using those same 4 bolts.
11. Connect the wire harness to the actuator and switch.

12. Wrap the loose part of the wire harness using the side cable bracket.

13. Secure the bender holder using the 4 original bolts.

14. Use M3 bolts to secure the PCB holder at the back.
15. Connect all cables.

16. Attach the pusher head.

17. Place the lid back.
18. Clip the bed.

Support

• Contact: Open a support ticket
• Skool community: skool.com/3dfarmers
• Community (Pro members): log in at app.3d-farmers.com to access the Discord server