This how-to is specific to multicolor canvases where you will be using multiple layers of colored spray paint.

1) Prepare image for laser engraving by dithering it in your preferred image adjustment software (I use imag-r and follow their listed steps in order)

A) Drag and drop image into imag-r

B) Crop the section of the image that you wish to engrave ( in this case I used square crop)

C) Adjust image size to .01 larger than what the material size actually is (this will give you some room to make sure that you engrave the entire piece)

•In this screen you will also set your dpi to 318 for the 5w and 10w

D) Next select the material button then select Norton white tile painted black (this is going to dither your image)

E) Last is to download the Image as your preferred file type (i typically download as a .BMP)

2) Import dithered image into lightburn (or preferred software) and set your parameters

A) Set image layer to passthrough

B) speed 100mm/s power 65%

C) overscan at 3%

D) Refer to the images in this guide for my full list of settings

3) Spray your canvas evenly with your desired colors of spray paint.

A) Spray the canvas with your various colors of paint, starting from the brightest color, up to the darkest color for the mask (this is typically black)

B) Make sure to make nice even coats and allow the previous coat to dry completely before adding next coat.

C) if you have more than one color on the same layer just make sure to spray them where you would like them to show up on the image.

D) as a reference for the blue image I sprayed 3 thick even coats of paint (one coat of each color listed below)

1. baby blue

2. blue

3. Black

E) for the red painting I sprayed 4 thick even coats of paint (one coat of each color listed below)

1. White

2. Orange

3. Red

4. Black

4) Position canvas into workspace

A) Place canvas directly on the honeycomb bed painted side up

B) Square canvas up to the machine using the cross hair or laser spot

C) Frame based on preferred origin point (ensure the laser is aligned to your canvas)

D) Run the program