K40 Air Assist install questions - Lens direction

stargeezer
Posts: 3
Joined: Wed Jan 04, 2017 1:54 am

K40 Air Assist install questions - Lens direction

Postby stargeezer » Wed Feb 01, 2017 2:19 pm

Hi Gang.

A couple months ago I took delivery of a K40 and started learning what it will do and not do. I quickly decided it needed air assist and purchased the piece from LightObject.com. Then I discovered the need for a 18mm focus lens, which I received today. All good so far.

What is not good is that something doesn't fit right. I can drop the lens into the pocket, But I'm not sure which way the lens correct, belly up or belly down? I'm placing the lens between the center double threaded part and the part the nozzle is attached to.

Thanks
Larry

Tech_Marco
Posts: 4333
Joined: Mon Jun 15, 2009 3:00 pm

Re: K40 Air Assist install questions - Lens direction

Postby Tech_Marco » Thu Feb 02, 2017 10:37 am

Concave facing down
Convex (curve up) facing up

Marco

stargeezer
Posts: 3
Joined: Wed Jan 04, 2017 1:54 am

Re: K40 Air Assist install questions - Lens direction

Postby stargeezer » Sun Feb 05, 2017 6:44 am

Tech_Marco wrote:Concave facing down
Convex (curve up) facing up

Marco


Thanks Marco, you the Man! Now, on with the plan! ;) :D

Larry

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dansgscale
Posts: 23
Joined: Thu Aug 25, 2016 8:48 pm

Re: K40 Air Assist install questions - Lens direction

Postby dansgscale » Fri Apr 06, 2018 7:18 pm

I was going to ask the same thing, I also have to 18mm air assist and purchased the 18mm lens and hope that I put it in correctly. my lens is flat on one side and curved outward on the other side. I installed it with the cure side facing upwards. Is this correct?
Dan

Techgraphix
Posts: 483
Joined: Fri Jan 20, 2012 1:39 pm
Location: Appelscha, the Netherlands
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Re: K40 Air Assist install questions - Lens direction

Postby Techgraphix » Sat Apr 07, 2018 3:22 am

dansgscale wrote: Is this correct?

Yes, your Concave is practically zero, but your Convex is still visible, so this side is up (towards the lasertube's output..)
Kees


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