air assist head focal length?

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Joined: Fri Nov 25, 2016 6:57 pm

air assist head focal length?

Postby ChrisBorg » Fri Dec 30, 2016 10:29 am

does anyone know offhand the focal length of the 18mm laser head sold here - from the tip of the head? I don't have any tools at home to measure the parts accurately...

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Joined: Mon Jan 06, 2014 4:28 am

Re: air assist head focal length?

Postby SWMS » Thu Feb 09, 2017 10:51 pm

Focal length changes depending on the type of lens used, not the physical head. A lens with a wider beam (kerf) will give a longer focus length and a deeper cut. If you decide on your lense then you could estimate the focal length.

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