This machine is designed to make the laser engrave in wood and opaque plastic, having an Arduino and the GRBL as machine automation basis. The machine axis are just the X and Y axis, which move a laser with power 1w 445nm, and this article aims to provide everything you need to make, without waiving of mechanical and electronic knowledge.
With around 170 euros can make one.
My portuguese blog: www.logicamecatronica.com (like my blog on facebook please)
Step 1: Materials
You will need some material for your machine, in which I produced a list of required material. You will need tools.
Bill of materials:
1x Arduino Uno
1x Motor Jaw Shaft Coupler 5x5mm
1x Laser 1w 445nm (you can choose another, but i recommend max 3w on this cnc)
1x CNC Shield v3.1
1x Laser driver 12v
2x stepper motors Nema 17
1x power supply 12v 5A
1x laser diode 1w 445 nm 5.6mm
1x heatsink 5.6mm laser diode
3x GT2 Timing Pulleys 20 tooth 3m GT2 Timing belt
1x 12v fan cooler
1x 605ZZ ball bearing
12x Pulley Wheels Roller 695ZZ1x 5.6mm TO18 Laser Diode Case
2x stepper motor driver DRV8825
2x limit switches
1x switch power 3D printed pieces
1x plugin 230v cable
1x USB cable (in future we will use Bluetooth)
various length of M5 screwdrivers
flexible cable wire for electronics
1x pair of safety glasses Note: Never look directly into the laser, always wear protective glasses, link these glasses are cheap and effective, look directly at the laser runs the risk of blindness and cataracts. http://www.dragonlasers.com/Laser-Safety-Glasses....
On Rat rig:
5x 500mm V-SLOT 2040 – Black
8x OpenBuilds Universal L Brackets (Single)
1x OpenBuilds Tee Nuts (25 Pack)
5x OpenBuilds Tee Nut (1 Unit)
Step 2: Electronics
The wiring diagram of this machine is very simple, just follow the following schedule (the used resistance is 1k ohms)
Step 3: 3D Printed Pieces
Printed pieces in 3D, you'll need a 3D printer or else order from any website online already printed pieces.
This printed pieces are from another user of insctructables (tobias.sobkowiak)
Step 4: Mounting
With this photos you can mount easily your machine.
Step 5: Software
Necessary software (works only on Windows 7 or higher and requires framework 4), I used the CamBam (is paid) and 3DPsender, made by a developer who also made a laser engraver, call 3DPBurner.
GRBL hex file: https://drive.google.com/file/d/0B5Y1gEmSHMjMS1R4RUhsamV3QXc/view?usp=sharing
Xloader to flash Arduino: http://russemotto.com/xloader/XLoader.zip
how flash and setting of GRBL: https://github.com/grbl/grbl/wiki
3DP Burner Send: https://github.com/villamany/3dpBurner-sender/releases
3DP Burner image2code: https://github.com/villamany/3dpBurner-Image2Gcode/releases
CamBam settings: https://dl.dropboxusercontent.com/u/40132197/CamBam%20settings.docx
Step 6: Results
The expected results of the machine will be these.
Download all files here: https://dl.dropboxusercontent.com/u/40132197/M.%20laser.zip
Thank you and i hope that you enjoy :)