R7 CNC Router

Price in reward points: 2300
  • Brand: Hobby-Fab
  • Product Code: AAA-149
  • Reward Points: 100
  • Availability: In Stock

Available Options


Not limited to just wood, made to machine aluminum!


The R7 CNC DIY Router Kit is an opensource 2.5D router build that is community supported. The machine is capable of routing woods and soft metals such as aluminum. The build is constructed by the maker post purchase and this kit includes most items needed, see below for more details. The R7 is a CNC based machine, meaning, once one has constructed the proper g-code and loaded this code into the machine it performs autonomously. The build is all aluminum with the exception of the gantry wheels and cable chains. All axis are driven via ACME screws and 2.8A NEMA 23 stepper motors. C-Beam and extreme wheels provide smooth linear motion, in addition, allow for adjustments as the machine ages to ensure the fitment is always tight. The spindle provided with this kit is an 800w water cooled spindle with a 1/8" ER-11 collet and includes the water pump and VFD all in 110v 60Hz configuration, no need to have 220v ran to your shop or garage.


The R7 kit started as an individual effort and quickly moved to a community project. A final revision (seven, hence R7) came to be a release state ready CNC router. The build was put together by a group of beta testers and feedback incorporated into the build. To date, the build continues to see small revisions that increase performance and usability. We appreciate all of the help provided by the community and inspiration from other manufacturers in the industry.

Build notes and instructions:

A website was constructed by one of our beta testers (Thanks go to Cedrick) for the R7 and has all the latest files and build instructions. 

Usability and control:

The kit provided here is a mechanical DIY build kit. What does this mean to the end user? Included in the kit there are electronics such as stepper motors, heat shrink tubing, wire for all motors and spindle, spindle, inverter, and water pump. Electronically speaking, one will need a computer, interface cable and controller, unless the option of an All-In-One controller is selected, more below. 

The workflow for a CNC

Can be explained briefly as, first a maker creates a sketch is a CAD program. Google sketch up is free to download and with a simple extension produces .DXF files. There are other CAD programs that perform this work as well such as SolidWorks or AutoCad, and Fusion 360 is another option. The DXF is then imported to CAM software such as CamBam or Vectric Vcarve pro both of which are also free for a trial period. In the CAM program one will tell the machine what size end mill you will be using and set paths such as pockets or profiles. The file is then exported as a .GCODE file. This file is then loaded into the controller interface. Lastly, the user simply hits start and the R7 will start to machine the sketch originally created, changing a thought into a physical product, or a concept into reality.

Who uses the R7?

The main use for the R7 has been by small businesses needing to end their outsource operations as well as avid makers in their garages. The machine is happiest performing prototype work and light manufacturing duties. The machine is not a CNC mill but a CNC router, what does this mean? One uses a CNC router to route works into wood and aluminum that are in sheet form, typically less than a 1/2" thick. If one desires to machine detailed profiles into steel and other harder materials above a 1/2" thickness a mill is a better choice of tools. In addition this is considered a 2.5D machine, meaning fine details can be added in the positive Z direction from the base. A true 3D router or mill is a 5 + axis machine, meaning the machine can do operations on all sides without user interface. Too many companies quote 2.5D machines as 3D machines.

What else is required?

Work bench that is 48" x 48" with a 3/4" MDF top

5 gallon bucket (for water pump)

110v outlet

Basic laptop or computer (unless purchasing the All-In-One PRO control box)

USB A to B cable

Basic hand tools including a square, level, and soldering iron

6 wood screws

A controller (again, this is not required if you add the All-In-One controller)

How does one build the R7?

The website link provided above for the R7 site has a folder called files, the build instructions and BOM can be located in this file. There are also 9 YouTube videos linked below that go through the build step by step. A note on the videos, several aspects have been upgraded and revised on the build, the videos do have out-of date information which is captured in the document instructions.

What do I do if I need support?

We are happy to answer questions, feel free to give us a ring at 346-333-6500, or email at contact@hobby-fab.com, we also have a Google plus group that is strictly used by only R7 users. The group has been amazing at quickly responding to any questions builders have. Join the community HERE

The videos are labelled as such R7v1 is video one, R7v2 is video 2 ect.. and provided HERE. Do note these videos are outdated and the document build instructions should be used.

Please note: The DIY build will have a 10 business day lead time from the date of purchase to ensure kit completeness.


Size - the R7's max dims are 1000mm x 1000mm, this is due to the ACME drive, we unfortunately cannot go beyond this. If you need a custom size below these lengths please drop us a line!

CNC Controller option - The kit does not come with a controller, as several of our makers are moving up from another machine. If this is your first machine, awesome, we offer the Hobby-Fab All-in-One CNC control box in a Simple and PRO versions. The difference comes down to this, both contain all the electronics you need to drive the machine, the PRO adds a Raspberry Pi with a pre-loaded Gcode sender program. Adding the PRO you will simply need a monitor keyboard and mouse. See more information HERE.

CNC CAM software - We offer two great solutions, CamBam and Vectric Vcarve Pro. Note the software needs to run on a separate windows computer if you are adding the All-In-One control box. These are both easy to use community supported CAM software packages and take your DXF or other file type and create Gcode ready to machine. 

CNC Laser add-on - Have two machines in one with this add on. The J-tech 2.8w laser is mounted directly to the lower spindle clamp and allows your R7 to be both a CNC router as well as laser engraver. Switching between the two operations is as simple as typing a few numbers in a console. 

R7 dust boot - Nobody likes dust all over the place or metal shavings everywhere. This is a simple solution that works great!

Product Details
Specifications Max travel speed 6000mm/m (suggested 1500mm/m) Entire machine mounts to spoiler board Full C-Beam construction X & Y drives have adjustable tension ACME and adjustable tension ACME nuts to control backlash. All motors are Nema 23 2.8A/Phase 800W water cooled spindle (max size), inverter and water pump also included. Cutting path 790mm Y x 830mm X x [+90:-30] Z Built as shown. 90mm above spoiler board and 30mm below. Outside dimensions: 1050mm x 1050mm x 500mm Option for TinyG System is all 110V for US wall outlets.
Manual R7 Build Manual Rev 9

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