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Hi! I'm not sure if I understand the thing with the focus inside? Could you show me a picture? Thanks!

OK..here the focus ring

I found a 8mm spring in my shop that I could make fit. Now it has the perfect amount of friction! Thanks again for the hint! I also finished the focussing ring... I will post some pictures later.

Thanks for all the responses! I think we found the issue... for some reason my module did not come with a spring (got it from the bay together with glass lens and diode). Do you know where I can get a spring for it? I played with my laser yesterday and here are some beam shots. This thing is...

I would say very easy to turn...

Sorry about that! I changed it. Glad you like it! I have a quick question... The thread of the lens insert is very easy to turn... Do you have a trick to get some friction there? a bit Loctite?

Hi! I just registered but I am reading in this forum for a while now. With the help of all the information in here I built my very first laser and I would like to show it to you. It's a 445nm C@$!0 setup with a micro drive set to 1A. I hollowed out the host and made a chunky heatsink for the...