Forums/Tutorials/Laser Cutting Tutorials & Tips

Advanced engraving options using Inkscape

Dan Emery
posted this on July 19, 2013 18:02

Our Design Guides suggest using 2 different engraving types: Heavy vector line engraving and Heavy raster fill engraving.

These are the two engraving types which tend to provide the best result on most materials. They are also the ONLY types we would recommend for use with acrylic - as it enables us to leave on the protective paper coating that comes on both sides of the acrylic from our supplier.

If you are not using acrylic, however, you may be interested in experimenting with the other engraving types, which are outlined below.

Vector line engraving

Medium vector line engraving

Set the stroke color to magenta with RGB values of 0, 255, 0:

illustrator-vector-medium_bird.jpg

Light vector line engraving

Light vector line engraving results turn out best on cork, wood, and leather - and are best avoided when using acrylic or felts. Be sure to look closely your material samples (if you have ordered some) or the material catalog pages to see the results you're likely to get

Set the stroke color to magenta with RGB values of 255, 0, 255:

Raster fill engraving

Lower power raster fill engraving results turn out best on cork, wood, and leather - and are best avoided when using acrylic or felts. Be sure to look closely your material samples (if you have ordered some) or the material catalog pages to see the results you're likely to get.

A pro-tip is that you can actually use any strength in between "heavy" and "light", as long as all three of your R.G.B. values match in your fill color

Medium raster fill engraving

Set the fill color to medium grey with RGB values of 128, 128, 128:

Light raster fill engraving

Set the fill color to light grey with RGB values of 230, 230, 230:

 

 

Comments

User photo
Donna

Hi,

I want to use a photo as an image for engraving into wood.

Based on your comment "you can actually use any strength in between "heavy" and "light", as long as all three of your R.G.B. values match in your fill color". I think if I convert my photo into vector shapes that all have a fill colour as grey with equal RGB values, this should work?

(I'm thinking in Inkscape to trace the bitmap with brightness steps, maybe 8 scans?)

Can you foresee any issues with this? (burn marks, edges etc)

Hopefully I've understood correctly and explained it well enough!

Thanks in advance,

Donna

September 22, 2013 05:59
User photo
Dan Emery
Ponoko

Hi Donna

Yes you can use any grey value as long as the RGB values are equal.

I'd probably recommend using less levels of color and opting for more contrast between fewer levels.

Hope that helps.

 

September 27, 2013 10:57