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FarmLoop Stage 2 assembly, Snapmaker U1

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 Snapmaker U1.

Prerequisites

Section titled “Prerequisites”
  • Snapmaker U1 with latest firmware installed
  • FarmLoop Stage 2 kit - door-opener actuator, bender actuator and holders, wire harness, limit switch, lid lifters, 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
  • 4 rubber feet and 3 tilted feet
  • Printed door hinge, secured with M3 bolts
  • Wire harness and cable bracket
  • Bender holder BT3 bolts
  • 4 rubber pads and 4 lid lifters
  • FarmBoard PCB and PCB holder
  • Door handle and quick-release pin, secured with an M3 bolt/nut and an M4 bolt/nut
  • Original print head and print-head cover

Hardware assembly

Section titled “Hardware assembly”

1. Assemble the door opener

Section titled “1. Assemble the door opener”
Door-opener button, rubber ring, and metal ring laid out
  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.
Pressing the button into the designated hole in the lid
  1. Fix the button using the rubber ring and metal ring.
Button assembly viewed from below, secured with the rubber ring and metal ring
  1. Slide the actuator into the bottom part until fully seated.
Sliding the actuator into the bottom part until fully seated
  1. Align the lid with the base and press them together until they click/lock into place.

2. Set up the benders

Section titled “2. Set up the benders”
  1. Slide the actuator into the bracket (cable should be at the bottom). The connector at the bottom (circled) is easy to miss - the red wire has low contrast against the orange bracket, and the white plug blends into a light-colored table.
Sliding the actuator into the bender bracket Actuator seated in the bender bracket, cable connector at the bottom circled in red
  1. Assemble the two levers using an M4 bolt.
Assembling the two levers with an M4 bolt
  1. Attach the lever group to the actuator using an M4 bolt.
  2. Assemble the two bender holders together.
  3. Press the limit switch into the slot in the right part.
Limit switch pressed into the slot in the right part
  1. Guide the limit-switch cable through the designated channel.
Guiding the limit-switch cable through the designated channel Limit-switch cable routed through the channel, continued
Limit-switch cable seated in the channel Limit switch and cable fully installed in the right part
  1. Attach the bender to the bender holder at a tilted angle. Doing this after the limit switch is installed keeps the slot easy to reach - it gets cramped once the bender is in place.
Attaching the bender to the bender holder at a tilted angle Bender seated in the holder at the tilted angle Completed bender assembly, limit switch and cable already installed

3. Prepare the 3D printer

Section titled “3. Prepare the 3D printer”
  1. Flip the printer.
Printer flipped over
  1. Remove the 4 rubber feet and screws.
Removing the 4 rubber feet and screws
  1. Attach the rubber feet to the printed parts.
  2. Attach the 3 tilted feet.
Tilted feet ready to attach Attaching a tilted foot to the printer All 3 tilted feet attached
  1. Flip the printer back.
  2. Lift the printer slightly to put the actuator-holder foot in the correct position.
Lifting the printer slightly to position the actuator-holder foot Actuator-holder foot in the correct position
  1. Remove the bottom two screws from the original door hinge - position the new door hinge and reinsert two M3 bolts to secure it.
Removing the bottom two screws from the original door hinge New door hinge positioned and secured with two M3 bolts
  1. Insert the wire harness into the print room through the opening.
  2. Connect the wire harness to the actuator and switch.
  3. Wrap the loose part of the wire harness using the cable bracket.
  4. Secure the bender holder using BT3 bolts.
Bender holder secured with BT3 bolts
  1. Remove the 4 rubber pads on top of the printer and insert them into the designated holes inside the lid lifters.
  2. Place the 4 lid lifters.
Placing the lid lifters All 4 lid lifters placed
  1. Place the PCB holder at the designated location.
PCB holder positioned at the designated location PCB holder secured in place
  1. Connect all cables.
All cables connected
  1. Connect the door handle and door bracket using an M3 bolt and nut at the right hole.
Door handle and door bracket aligned at the right hole Door handle and door bracket connected with an M3 bolt and nut
  1. Put the quick-release pin into the left hole.
Quick-release pin inserted into the left hole
  1. Connect the door handle to the actuator using an M4 bolt and nut.
  2. Unscrew the original print-head cover.
  3. Attach the print head and secure it with the original bolts.
Print head attached and secured with the original bolts
  1. Clip the bed.
Bed clipped into place

Support

Section titled “Support”