Last Update: 11 December 2019

Before you get started, here is a list of tools you should have on hand for assembly. Most people will have these tools in their shop:

  • Metric Allen keys or a drill and Allen driver bits
  • Pliers or metric wrenches
  • A small flat head screwdriver
  • Rubber mallet (optional)

The LongMill comes with a lot of parts, but we’ve organized them to make it as easy as possible to find and put everything together; each kit comes with several cartons:

Basic contents

Top Carton #1

  • Electronics
  • Fasteners and other hardware
  • Motors
  • Power supply and AC cable
  • Dust shoe (if it was ordered with your machine)
  • Touch plate (if it was ordered with your machine)
  • End mill add on pack (if you ordered your machine through Kickstarter)

Top Carton #2

  • Gantries
  • Z Motor Plate
  • Router Mount (in the size you requested)
  • 3D printed components

Top Carton #3

  • Router (if it was ordered with your machine)

Bottom Carton #1

  • Aluminum rails

Bottom Carton #2

  • Wires
  • Lead screws
  • Drag chain


Top Carton #1

When you first open the top carton #1 it should look like this:

This box includes:

  • A welcome page with safety guidelines on the back
  • Some assorted stickers, including long ones for the LongMill and some with Louis on the machine, Andy’s dog and our unofficial mascot and CEO
  • parts for the dust shoe (if you ordered it) including two hardware bags (one for assembling the dust shoe and one for mounting it), a backing plate, and 2 aluminum extrusions.
  • The touch plate in the yellow padded envelope (if you ordered it)
  • The end mill add on pack (if you ordered your machine through Kickstarter)
  • Aluminum router mount (in the size you requested)
  • Hardware bag #1 which contains:

    • M8-25 (x12)
    • M8 hex nut (x12)
    • M5-25 (x35)
    • M5-12 (x5)
    • M5 nylock nut (x35)
    • M5 washer (x14)
    • M4-16 (x10)
    • M4 hex nut (x10)
  • Hardware bag #2 which contains:
    • V-wheel (x12)
    • 608zz flange bearing (x8)
    • Delrin block nut (x4)
    • Pulleys and belts (x2)
    • ACME locking nut with M3 set screw (x4)
    • 1/4″ to 8mm coupler (x3)
  • Hardware bag #3 which contains:

    • M8-16 (x30)
    • M8 washer (x4)
    • M5-50 (x12)
    • Aluminum standoff (x12)
    • 1.25”, 1.5”, and 2” board screws (x10 each)
    • Eccentric nut (x6)
  • Three unthreaded motors (X & Y axis) and one threaded motor (Z axis)
  • The power brick with its AC power cable inside a white cardboard box
  • A bagged USB cable (type A to type B)
  • The electronic control box protected by grey padded foam (the three orange components won’t be there for most machines)


Top Carton #2

When you open the top carton #2 it should look like this:

This box includes:

  • The whole range of 3D printed parts, listed from left-to-right and top-to-bottom:
    • Back feet pair
    • Front feet pair
    • Drag chain mount
    • Shoulder brackets (x2)
    • Middle feet (x3 for the 30×30 and x1 otherwise)
    • Drag chain foot
    • Z-axis mount
  • XZ-gantry sub-assembly protected within a padded envelope
  • Z motor plate, a piece of 1/8″ thick steel protected by paper wrapping
  • Two Y-axis gantries, both pieces of 1/4″ thick steel protected by paper wrapping


Top Carton #3

If you ordered a Makita Router with your Longmill it can be found here, if not this box will remain empty to help keep top cartons #1 and #2 secure during shipping.


The following pages in the assembly section will guide you through how all these parts will fit together to make your LongMill. You should find that each major step is self-explanatory, but the required parts and quantities will still be written as an additional reference. If you’d like to access these pages offline, you can download the screenshots of the assembly process here.