Hi. I've had the laser for a few days now so I've just done

Lasers
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1

Hi. I’ve had the laser for a few days now so I’ve just done a quick resolution test. The bars and boxes are 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0.5, 0.25 and 0.1mm. I can’t see much difference between the 0.25 and 0.1mm. It’s lightweight card (about 160gsm) and laser settings were 6mA power and 34mm/s speed.

[For those that work in imperial: 0.394, 0.354, 0.315, 0.276, 0.236, 0.197, 0.157, 0.118, 0.079, 0.039, 0.0197, 0.0098, 0.0039 inches]

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2

Great test. I need to do that once I put mine back together. Here’s an interesting article on lens resolution. http://www.parallax-tech.com/faq.htm

3

Thanks Jim. That article is full of really useful info. Thank you.