by Eikie » Thu Oct 01, 2020 1:47 am
holomaker wrote: ↑Wed Sep 30, 2020 9:50 pm
Eikie wrote: ↑Mon Sep 28, 2020 3:10 pm
Just to be sure:
I expand the laser beam, point at a glass plate and see if the reflection on a wall has those dark bands
At the moment, the expanded beam looks very noisy, is this a product of dirty/wrong lens?
It looks like your using a coated lens for a different wavelength, if you dare to remove the factory installed optics you will get a beautiful expanded beam that’s perfect for doing one beam work, DCG and Photopolymer Denisyuk’s. A word about the factory installed optics , when expanding beam be sure to locate your optics at least 8”+ in front of laser ad they have a projected pinhole and your optics will work cleaner...
Thanks, I will consider that. Was planning on using the two colors together, but I guess when removing the optics that is out of the question.
I'll also try another lens, this one was an unknown lens and will try the 8" to see if there is any difference.
Really appreciate the help...
[quote=holomaker post_id=72061 time=1601520606 user_id=2175]
[quote=Eikie post_id=72050 time=1601323830 user_id=7677]
Just to be sure:
I expand the laser beam, point at a glass plate and see if the reflection on a wall has those dark bands
At the moment, the expanded beam looks very noisy, is this a product of dirty/wrong lens?
[/quote]
It looks like your using a coated lens for a different wavelength, if you dare to remove the factory installed optics you will get a beautiful expanded beam that’s perfect for doing one beam work, DCG and Photopolymer Denisyuk’s. A word about the factory installed optics , when expanding beam be sure to locate your optics at least 8”+ in front of laser ad they have a projected pinhole and your optics will work cleaner...
[/quote]Thanks, I will consider that. Was planning on using the two colors together, but I guess when removing the optics that is out of the question.
I'll also try another lens, this one was an unknown lens and will try the 8" to see if there is any difference.
Really appreciate the help...