New user to CO2 engraving

Good Day here from South Africa.
I’m just received my new lenses from Cloudray. 20mm FL38.1 , 50.8 and 101.6.
Now I’m in trouble, only have the FL63.5 lens tube and my nozzle is 45mm.

Can you please help me in selecting the correct lens tube and nozzle.
Mainly I want to do granite photo engraving.

Thank you.

I hope this picture is helpful to you.
If you can’t solve it, you can take a picture of the entire laser head to me.

Good Day

Please find a picture of my FL1390 model laser head.

I do struggle to get the correct adjustments for the different lenses orcodenly the FL.
My laser head does not have the FL markings on my tube for easy adjustments.

Thank you for the feed back.

Kind Regards
Nico van Dyk

Good Day

Thank you for the picture. Knowing the FL is good.
My tube or nozzle doesn’t accommodate the FL 38.1mm lens.


Your light-emitting nozzle is too long, 38.1 is not suitable, you need to replace the light-emitting nozzle

Yes, this I know. I need to know witch laser head / tube / nozzle to get for my laser head to make it work.

Thanks for your info.

This laser head is suitable for the lens you buy

Hi Lucas

Thanks for the info. Can I combine these to parts to get my 38 FL.