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Laser Beam coming out at angle

infinity8208

New member
Joined
Feb 21, 2020
Messages
10
Points
3
All in the title. Why does my beam come out at an angle? If its just bad diode placement, is there a way to fix it without ruining it? The button for the laser is sinking down a bit on one side.
 





Joined
Sep 20, 2013
Messages
17,253
Points
113
Yep, that's not straight. Could be the diode in crooked or maybe the lens. Would be much easier if I had it in front of me. If you can take the lens off, see if the unfocused light is coming out crooked. It should look bar shaped in the near field.
 
Joined
Apr 2, 2020
Messages
45
Points
18
Yep, that's not straight. Could be the diode in crooked or maybe the lens. Would be much easier if I had it in front of me. If you can take the lens off, see if the unfocused light is coming out crooked. It should look bar shaped in the near field.

Here is a picture

Also, what’s the origin of the device? Did you build it or buy it? I ask because commercial laser diodes are unfortunately sometimes glued into place, whereas with a DIY you have a better chance to adjust the set screw/lens placement. Hope we can help!
 

infinity8208

New member
Joined
Feb 21, 2020
Messages
10
Points
3
Also, what’s the origin of the device? Did you build it or buy it? I ask because commercial laser diodes are unfortunately sometimes glued into place, whereas with a DIY you have a better chance to adjust the set screw/lens placement. Hope we can help!
It from Sanwu.
Yep, that's not straight. Could be the diode in crooked or maybe the lens. Would be much easier if I had it in front of me. If you can take the lens off, see if the unfocused light is coming out crooked. It should look bar shaped in the near field.
Yep, that's not straight. Could be the diode in crooked or maybe the lens. Would be much easier if I had it in front of me. If you can take the lens off, see if the unfocused light is coming out crooked. It should look bar shaped in the near field.
Here it is without lens, and the button in the host is looking a little weird.
 

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Joined
Apr 2, 2020
Messages
45
Points
18
Based on that odd looking power button position, I’d say the module was mounted in there crooked. From the style of button I’m guessing this was a laser you bought assembled?

-edit- whoops, didn’t see the comment about sanwu. Yeah that style of button interfaces with a momentary switch on the circuit board, and when they’re loose/at an angle, it can mean that the diode+driver assembly isn’t mounted straight in the casing. I haven’t gotten hands on with that laser before, can it be disassembled fully?
 

infinity8208

New member
Joined
Feb 21, 2020
Messages
10
Points
3
Based on that odd looking power button position, I’d say the module was mounted in there crooked. From the style of button I’m guessing this was a laser you bought assembled?

-edit- whoops, didn’t see the comment about sanwu. Yeah that style of button interfaces with a momentary switch on the circuit board, and when they’re loose/at an angle, it can mean that the diode+driver assembly isn’t mounted straight in the casing. I haven’t gotten hands on with that laser before, can it be disassembled fully?
Only able to disassemble down to where the diode is housed. (Lens and battery caps)
 

Snecho

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Oct 2, 2019
Messages
826
Points
93
That is a Sanwu 304 445nm. I would contact Sanwu to see if they can resolve your issue as they should have good customer service.
 

infinity8208

New member
Joined
Feb 21, 2020
Messages
10
Points
3
That is a Sanwu 304 445nm. I would contact Sanwu to see if they can resolve your issue as they should have good customer service.
I emailed them awhile ago about it, no response. Im assuming that's due to virus issues
 

Snecho

Well-known member
Joined
Oct 2, 2019
Messages
826
Points
93
I emailed them awhile ago about it, no response. Im assuming that's due to virus issues
Yes as Paul said, try again. I had a multi message conversation with them a couple days ago. I used their on-site contact us option.
 
Joined
Dec 15, 2014
Messages
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Hi
Looks like Hop Sing had to much rice for lunch
Sanwu is a reputable dealer here at lpf hope things work out for you
All the members here gave on spot answers no pun intended couldn’t ask for more
Rich:)
 




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