Sienci Mill One Kit


The Sienci Mill One Kit is an affordable and simple desktop CNC machine to turn your digital 3D designs into real physical objects.

This kit comes with all of the hardware required to build your own Sienci Mill One. A 10mm socket wrench, small flathead screwdriver, and size M3, M5, and M8 Allen keys are needed to assemble this kit. Find assembly instructions and videos on our Resources Page,

This kit does not come with a rotary tool, and one must be purchased separately. We recommend the Ridgid R24012 or Makita RT0701C routers due high performance and reliability. Sources to order routers can be found here:

Please note that shipping times for US and Canada is approximately 4-9 business days. All prices are in USD. Lead time for this item is estimated 1 week.

SKU: N/A Category:


Model: Mill One

Working Area: approximately 235mm x 185mm x 100mm (9 ¼” x 7 ¼” x 4″)
Machine Volume: approximately 430mm x 430mm x 300mm (17” x 17” x 11 ⅞”)
Mechanical resolution: ±0.1mm
Max Travel Speed: 1200mm/min at ⅛ microstepping (arbitrary cap)
Commands to Controller: G-code
Driver system: CNC V3.0 HCARDU0086 Arduino Shield on Arduino Uno with Pololu A4988 stepper motor drivers and GRBL firmware
Software Compatibility: Universal GCode Sender, Kiri:Moto, Fusion 360 (with Universal GCode Sender plugin), and any other g-code sending software (some 3D printer senders work)
Interface: USB
Power supply: External 120V/220V, 50/60Hz AC to 24VDC 5A
Power consumption: 110W (max)
Run Speed: Recommended speeds are dependent on cutter choice and material hardness. Listed are some of the typical feed rates and depths of cut we use for our machine with a 2 flute ⅛” end mill.

Feed rate: 800 to 1200mm/min
Depth of cut: 1.5 to 2 mm

6061 Aluminum:
Feed rate: 800 to 1200mm/min
Depth of cut: 0.08 to 0.1 mm
Coolant: water or rubbing alcohol

Feed rate: 500 to 1000mm/min
Depth of cut: 1 to 1.5 mm

Feed rate: 800 to 1200
Depth of cut: 1.5mm to 2mm

Material Diversity: metals softer than aluminum, woods, plastics, foams, printed circuit boards, leather, and more!
Extras: 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.

Additional information

Weight 27 lbs
Dimensions 20 x 14 x 10 in
Router Mount Type

Ridgid R24012, Makita RT0701C

Safety and Disclaimers


The product user takes on all the associated liability pertaining to the operation and performance of the Mill One. The listed “Safety Warnings and Guidelines” outline the necessary precautions that should be taken any time the machine is operated. Sienci Labs will not be held responsible for any damages to property or injury incurred on the operator or bystanders. Sienci Labs will not be held responsible for damages to property or injury incurred on the operator or bystanders if any alterations are made to the design or assembly of our machine. Although care is taken to ensure the accuracy of information made available on this website and other forms of media, Sienci Labs will not be held liable for inaccuracies, errors, or inconsistencies in website content, the content of files linked to by this website, references made to external websites herein, and/or information produced by Sienci Labs. The information which has been made available will not be applicable to all situations and is subject to change without notice so it should not substitute for the discretion of product users. Variability in machine accuracy and performance may occur due to improper machine assembly by the user, as such, Sienci Labs takes on no responsibility for variation between claimed machine specifications and the performance of the user’s machine from improper assembly.


Safety Warnings and Guidelines

  1. Be sure to carefully follow provided machine assembly instructions before machine use to ensure operator safety.
  2. All wires must be appropriately positioned before beginning the operation of this machine. Cutting a “live” wire may cause exposed metal parts of the routing/trimming tool to become electrified and shock the operator.
  3. Ensure the machine is placed on a flat surface and in a well-ventilated space before operation.
  4. Always wear eye protection during machine operation.
  5. Always wear hearing protection during extended machine operation based on proximity to machine.
  6. Materials may release chemicals that are toxic or unsafe to inhale when cut. Always check the Material Safety Data Sheet (MSDS) of the material in question before cutting. Always cover exposed skin and wear appropriate airway protection (e.g. dust mask/respirator) specific to the  material used and its application.
  7. Any workpiece must be appropriately secured before starting a cutting routine by clamps or other practical securing method. Holding the material by hand or employing any any other unstable form of securing will lead to unsafe loss of machine control.
  8. Cutting bits used for the Mill One should be used at the discretion of the user. Bits are sharp and can crack and break without notice so appropriate care should be taken by the user while manipulating and installing them. Carefully check bits for cracks or damage before operating the machine and replace any cracked or unfit bits immediately.
  9. Carefully inspect any consumable material before use on the machine, any unforeseen inconsistency in material hardness or material quality may cause damage to the machine.
  10. Keep away from all moving parts during machine operation.
  11. Before beginning a cutting job, ensure the router/trimmer runs properly. Immediately disable the tool if visible vibration or wobble occurs. This might indicate a damaged tool or an improperly installed bit.
  12. Make sure the bit in not contacting the workpiece before the router/trimmer tool is turned on.
  13. Do not leave the machine running unattended, the machine should only be operated with the operator present.
  14. Do not touch the cutting bit immediately after use. It may be hot and could burn the operator.
  15. Use bits that are appropriate to the material and cutting speed used.