We gotta get one of these, or make one. Love the removal step for the stencil: use duct tape!

Post : High contrast laser etching
URL : http://hackaday.com/2013/03/03/high-contrast-laser-etching/
Posted : March 3, 2013 at 6:01 am
Author : Mike Szczys
Tags : engraver, engraving, high contrast, laser, spray paint
Categories : news

http://hackadaycom.files.wordpress.com/2013/03/high-contrast-laser-etching.jpg

The problem with laser etching dark materials is that the areas burnt away by the intense light don't really stand out from the rest of the surface. [The 5th Fool] is taking a roundabout way of correcting this by topping his laser engravings with contrasting paint (http://www.instructables.com/id/High-Contrast-Leather-Laser-Etching-Intro/) . The technique is still pretty simple and we think it looks great!

Basically he's etching a layer of painter's tape which becomes a stencil. But the surface it is masking also gets etched so the paint has an area below to the surface which it can fill in. We figure this will help with durability issues.

After etching the painters tape the design gets a few coatings of a high-contrast paint color and is left to dry. To remove the stencil, duct tape is applied to the entire area. This helps quite a bit in removing the tiny bits of tape from an intricate design.

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