Sienci Mill One Kit V3

(8 customer reviews)


The Mill One is out of stock. To find out why, please read:

The Mill One Kit is made in Canada🍁 and comes at a price, size, and durability which makes it an excellent entry-level machine into the world of CNC routing. The sturdy and compact form-factor makes it a gateway machine for curious makers and for small prototyping formats (see what MAKE: Magazine said or read some testimonials here).

Our free online app CAMLab accompanies the Mill One as a powerful and user-friendly tool to help you get making faster and easier.

Cutting volume: 10.15″ x 7.25″ x 3″ (258mm x 185mm x 76mm)

Suitable for: wood, plastic, circuit boards, foam, and soft metals.

Kit includes:

You’ll need an 8mm wrench, a small, flat head screwdriver, and a set of Allen keys for assembly. For the electronics, there is no soldering required 🙂

SKU: N/A Category:


Turn your ideas into a reality with the Sienci Mill One V3

The Mill One and it’s software works on any computer and connects using standard USB. The total machine volume is about 17” x 17” x 11 ⅞” (430mm x 430mm x 300mm) and has a respectable resolution of ±0.1mm.

Standard Features:
– Laser cut, steel gantry plates for high rigidity
– Standard profile, extruded aluminum rails
– Delrin V wheels with variable eccentric nuts
– 4-start, 2mm pitch, 8mm diameter ACME lead screw for high torque and fast movement
– Solid coupler from motor to leadscrew
– Specialized high torque NEMA 17 stepper motors
– CNC routed MDF frame
– Mount for Ridgid R24012 and Makita RT0701C routers
– 24V, 110 Watt power supply
– Arduino board loaded with GRBL firmware
– Pololu A4988 stepper motor drivers on a CNC V3.0 HCARDU0086 Arduino Shield

Add-on Features:
– Ridgid R24012 router: has LED, runs at 20,000 – 30,000RPM at 1-½HP
Anti-backlash kit retains accuracy of machine even after long-term wear and tear
Collet adapter to use ⅛” inside 1/4″ router shaft

Our machine uses open-source hardware and firmware, letting users build and modify their machines. Not only that, nearly all of our components are standard and easy to source or 3D printable, making replacing parts easy.

The Mill One is proudly made in Canada in a way which supports local, growing businesses.

See the Mill One’s Resources, Assembly Manual, or Community User Group for more information on the Mill One and the Community around it.


The Mill One has a 60 day warranty once it’s received.

We want you to have a great experience with your machine, so if any parts are found to be missing or damaged, please email us. We will ensure that you receive the support you need to restore your Mill One to operating condition, or provide a full or partial refund.

You may cancel an order if it has not shipped yet, please contact us if you wish to do so.


Mill One Wood Cutting Demonstration Double-sided PCB Milling
Mill One HDPE Profiling Demonstration Mill One Thick Aluminum Cutting Demonstration

Cutting Speed:
*We recommend the Ridgid and Makita routers due to their high performance and reliability

  • Ridgid R24012 = 20,000 – 30,000RPM at 1-½HP (1118W)
  • Makita RT0701C = 10,000 – 30,000RPM at 1-¼HP (932W)

Default* Max Travel Speed:
1800mm/min at ⅛ microstepping
*easily change these settings to suit your needs

Run Speed:
Basic recommended feeds and speeds can be found here.

Additional information

Weight 28 lbs
Dimensions 20 × 14 × 8.5 in
Add Ridgid R24012 Router (120V)

Yes, No


  • New, 2 part Y axis bed design. The Mill One now comes with a lower steel gantry plate on the Y axis with mounting points so that users can bolt on the standard size wasteboard (included in the kit) or make their own custom workholding solutions. The wasteboard design has been created to allow users to easily mill them at home out of any 1/2″ or thicker material. The two part bed system is significantly more rigid than the single part HDPE bed design.
  • New XZ gantry design. The addition of notches allows the Mill One to travel further along the X axis, increasing the total working area of the Mill One.
  • Additional mounting holes on the Z axis for the router mount. Increases rigidity and allows for more mounting options.
  • Improved ACME nut mount design.
  • New clip-on type electronics holder, which is less prone to falling off.
  • Change from 45mm to 48mm tall NEMA 17 motors with longer cables.
  • Leadscrew on the Z axis has been shortened slightly, allowing more clearance under the router.
  • Update from GRBL v1.1e to v1.1g, with faster acceleration and max feedrates.
  • We just released CAMLab, a free, simple, and easy to use CAM software for creating gcode! Check it out at

8 reviews for Sienci Mill One Kit V3

  1. Maxime R. (verified owner)

    Excellent CNC that can be modified according to your needs

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  2. Ron Spring (verified owner)

    mechanically excellent for intended purpose easy to assemble, but I am still struggling with the software communicating with the machine

    1 out of 1 people found this helpful. Was this review helpful to you?
  3. Andrew Edman (verified owner)

    Easy to assemble, good instructions, build quality of components seems good.

    0 out of 1 people found this helpful. Was this review helpful to you?
  4. Scott F. (verified owner)

    Instructions were clear and easy to set-up. The Milll one is the best value on the market. So much fun having CNC capability at home.

    1 out of 1 people found this helpful. Was this review helpful to you?
  5. Robert Hindle (verified owner)

    Great little machine! I picked it up in person and checked out their setup. Machine was easy to assemble and set up, the website and pdf were straight forward. First few test cuts were great. Haven’t had enough time yet to get too deep into the learning, but can’t wait to see all what this machine can accomplish. Part of its mission will be to make parts for an even bigger unit soon!

    2 out of 2 people found this helpful. Was this review helpful to you?
  6. Anonymous (verified owner)

    We have only assembled the unit. I have tried to program it but am unsure if I was successful. I am able to change the baud rate but don’t currently have the software to send programs to the unit and run it to see if I was successful or not.

    I did think there could be some improvements in the instructions. Mainly with the order of assembly of the processor.

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  7. Andrew (verified owner)

    0 out of 1 people found this helpful. Was this review helpful to you?
  8. Russell D. (verified owner)

    Minor hiccup on receipt of unit quickly resolved. Great support.

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