Summary

ROOT 2 CNC!

Official Website!

Join our forum and ask questions with our community.
https://www.rootcnc.com

Facebook

Join Our growing Facebook Group to keep update with everything going on!
https://www.facebook.com/groups/1023078667749894/

Current .Zip = 2.0.2

Update!!! R3 is here:

http://www.thingiverse.com/thing:1750276
This is the latest version of Root CNC!!

Join Us on Facebook! Upload idea's, photos and any updates

https://www.facebook.com/root2cnc/

https://www.facebook.com/groups/1023078667749894/

Introduction

I started this project to enable me to do another project which required sheet wood to be machined, (another 3D printer which I have been wanting to do for a while). without the large cost of out sourcing the tasks to a company. So I created this CNC named Root 2 to open up a endless amount of possibilities.

Why make it open source? Since getting involved with 3D printing and the whole open source community, it has taught me many things and open doors which might not have been open without the added experience the community has given me. So I thought what a great way to put something small back into very thing what got me hooked in the magical world of CNC machine - the open source community.

If you make one or remix it, I would love to see it! post some photos and show it off! =]

Working Area = 331x305x120mm (X,Y,Z)
Goals of this machine

Create a expandable CNC machine capable to machine aluminum
Use minimal different 3D printed parts
Customization (Make it Bigger)
Cheap
Simple
Use parts commonly used in DIY 3D printer
Easily sourced parts

Print Settings

Printer Brand:

RepRap

Printer:

I3 Redesign

Rafts:

No

Supports:

Yes

Resolution:

0.25-0.35

Infill:

50%

Notes:

Print with 3-4 perimeters
Print with ABS but PLA will be fine though your mileage may vary

Videos

Early Motion testing

Movement Testing

Cutting 5mm Acrylic

Milling 12mm MDF

BOM

Plastic Parts

2x Root 2 CNC - Y gantry assm-1 Y-Axis Belt Clamp GT2
4x Root 2 CNC - Y gantry assm-1 Y Motion Bearing Mount
1x Root 2 CNC - Y gantry assm-1 Y Drag Chain Carriage
1x Root 2 CNC - Y gantry assm-1 X-Axis Carriage Y Drag Chain Mount
1x Root 2 CNC - Y gantry assm-1 X-Axis Carriage Y Drag Chain Mount Idler
2x Root 2 CNC - Y gantry assm-1 X-Axis Belt Clamp
2x Root 2 CNC - Y gantry assm-1 X-Axis Box Bar Mount
2x Root 2 CNC - Y gantry assm-1 Dirt Cover
1x Root 2 CNC - X carriage-1 Z-Axis Motor Mount
1x Root 2 CNC - X carriage-1 Z carriage-1 Spindle Upper Clamp
1x Root 2 CNC - X carriage-1 Z carriage-1 Spindle Lower Clamp
1x Root 2 CNC - X carriage-1 X-Axis Motor Mount
1x Root 2 CNC - X carriage-1 X-Axis Carriage Drag Chain Mount Idler
2x Root 2 CNC - X carriage-1 linear rail 90 bearing mount Y-Axis Carriage
1x Root 2 CNC - X carriage-1 3M Pulley 32T 5mm
1x Root 2 CNC - X carriage-1 3M Pulley 22T 8mm
1x Root 2 CNC - Ramps controller-1 Ramps Case Lid
1x Root 2 CNC - Ramps controller-1 Ramps Case Base
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount Idler
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount Idler Mirror
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount Mirror
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Motor Mount
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Motor Mount Mirror
1x Root 2 CNC - Base and Y axis assm-1 Y-Axis Drag Chain
1x Root 2 CNC - Base and Y axis assm-1 3M Pulley 48T 8mm
1x Root 2 CNC - Base and Y axis assm-1 3M Pulley 24T 5mm
4x Root 2 CNC - Base and Y axis assm- Foot

Electronics

1x Arduino Mega + Ramps 1.4
3x DRV8825 (Optional but preferred over the A4988)
3x Nema 17 Stepper motors (Get the Highest torque possible)
1x 60mm DC Fan
6x Endstop micro switches (KW11 I drilled the whole to 3mm to screw then in to the plastic parts)
1x DC Spindle (52mm Diameter - Get the highest wattage, you will be thank full later on)
1x Diode This is needed if using the heatbed Mosfet on the ramps to control the spindle - google Mosfet switching inductive loads for more information
4 core AWG26 cable (use for motor wiring and endstops)

Fixings

4x M8 Penny washers
Lots of M8 Standard washers
lots of M8 Nuts
24x M8 x 25mm Bolts
2x M8 x 35-40mm Bolt
16x M8 Tee Nuts
2x M4 x 50mm Bolt
16x M4 Nuts
16x M4 Washer
16x M4 x 40mm Bolt
Lots of M3 9mm Penny Washers
Lots of M3 Nuts
10x M3 x 10mm
lots M3 x 16,20,25,30,40 mm Lengths (good to have a selection on hand)

Bearings

36x 608 Bearings
4x LM10UU

Metal Work

2x Aluminum Box section (X-Axis) 25x25x496x3mm (W,D,L,T)
2x Aluminum Box section (Y-Axis) 25x25x496x3mm (W,D,L,T)
1x M8 Smooth Rod 580mm
8x M8 Threaded Rod 85 mm
1x M8 Threaded Rod 500 mm
2x M8 Threaded Rod 200 mm
1x M8 Threaded Rod 230 mm
2x M8 Threaded Rod 100 mm
2x M10 Smooth Rod 185 mm

Motion

GT2 Belt (Length depending on size of the of the machine)
2x GT2 36T Pulley 8mm Bore
1x 3M-210T-06 Belt
1x 3M-264T-06 HTD
1x GT2 16T Pulley 5mm Bore
2x Drag Chain 20 x 10 mm 1m Length

Wood

2x Wood Side Panel
1x Wood Base

CAM Software

Generate the Gcode

I use PathCam, free open source software with minimal settings to enter to get up and running. Its not perfect but still does a great job! see link for more information.

https://github.com/xenovacivus/PathCAM

FAQs

FAQs

What is the working area of this machine?

331x305x120mm (X,Y,Z)

What Firmware or Software do you run on the Arduino Mega?

I use Marlin the 3D printer firmware. only because I know my way around it very well. I have not used GRBL yet but would like to try it. Marlin has a strong community and most questions have been asked regarding it.

Assembly Guild

Animated assembly guild:
https://www.youtube.com/playlist?list=PL5hghy18PulU0-F_gzihovUwgWx6q6PMu

Update History

Update #10

I've updated the file structure to hopefully make it easier to find parts.
Also added the option for a NEMA 23 Motor for the Y axis!

Update #9

Added a 65mm and 66.4mm Spindle Mounts as requested. Theses Are REV2 design which incorporate the option for a lead screw nut or normal M8 nut options in one design!

Update #8

Removed Prototype parts (from update 7). Theses parts were to premature for released and have been removed - see Facebook conversation for any latest work.

Update #6

Animated assembly video's, these are a work in progress for when I get more time. more will be added soon
https://www.youtube.com/playlist?list=PL5hghy18PulU0-F_gzihovUwgWx6q6PMu

Update #5

Added FAQ's at the bottom of this page, It will be updated as and when I receive a question.

Update #4

Added the option to use the Dewalt 611 / DeWalt D26200 or any other 69mm Diameter spindle on this machine! (Untested - Awaiting delivery)

Update #3

Added the following files to use 1 inch box section* instead of the 25 mm box.

X-Axis Box Bar Mount INCHES
Y-Axis Bar Mount INCHES
Y-Axis Bar Mount Idler INCHES
*Theses are untested though the slot has been increased by 0.4 mm from the original to accommodate the 1 inch box.

Update #2

Join Us on Facebook! Upload idea's, photos and any updates

https://www.facebook.com/root2cnc/

https://www.facebook.com/groups/1023078667749894/

Upload, Share and Learn!

Update #1

Rev 1.1 updated .STL files

Theses are updated file which will reflect the Plastic Parts BOM Blow Use theses new files.
Part Improvement on;
1. Spindle upper and lower mount tweaked - Placed the logo on upper file and blanked the bottom
2. Y-Axis Bar mounts Tweaked - Added option for cable management to ran through the aluminium box section. this can be useful for the min and max end-stop cabling.
3. Y-Axis Motion Bearing Mount - Increased area to allow for more motion to tighten up the M8 clamps nuts. (It was difficult to do before)
4. Removed the pointless prototypes of the 3M pulleys and only uploaded the sizes required

Special thanks

Special thanks to the people who have given me the ideas to come up with this machine. There have been many hours of YouTube videos watched over a long period of time, many hours searching google and most of all many hours printing. I cannot comment on all sources of information but here are a few which standout;
People and groups worth mentioning;
https://github.com/CarlosGS/Cyclone-PCB-Factory for getting me into this in the first place
http://reprap.org/ for giving me the printer which printed a printer. To which that printer, printed the parts for a CNC machine - to machine the new printer. Of which this printer helped print the new piece for a new machine! very fitting for the RepRep self-replicate philosophy.
http://www.thingiverse.com/Rukey/designs/ great place for ideas
http://www.thingiverse.com/thing:49484
http://www.thingiverse.com/thing:41594 inspired the first Mill (Root 1 which wasn’t released as it wasn’t great :P)

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