Need some help with soldering

• Mar 22, 2015

• #1

BillyBob

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I bought this Laser Module 10mW 30mW 50mW 100mW 200mW 532nm Green Dot Laser Module with Driver Spring Wire | eBay. I didn't mean to pick the spring version is there a way I can take the spring off and add wires?

 

• Mar 22, 2015

• #2

SteveT

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You can simply desolder the spring from the driver board and replace with wire. If you're unsure you can search the forums and/or Google for some further tips.

 

• Mar 22, 2015

• #3

Pi R Squared

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Yes the spring is where the negative or black wire would go, the positive or red wire can be soldered directly to the module itself.

Alan

 

• Mar 22, 2015

• #4

The Lightning Stalker

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I recommend soldering the positive wire
where the case pin connects rather than
directly on the module. There is a chance
the iron will overheat the module. The
case pin is the pin coming out of the back
of the module that is "grounded" to the
module. Don't use a continudity tester to
find it, because it can blow out the
diode. Just look at the back to see which
one is off center and connected to the
case. If you have trouble, take some
pictures and post them here.

 

• Mar 26, 2015

• #5

BillyBob

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Here is some pictures of it. Can you show me where to desolder and resolder? Imgur

 

• Mar 27, 2015

• #6

The Lightning Stalker

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Don't forget to wear an ESD strap at all times.

 

Last edited: Mar 27, 2015

• Mar 27, 2015

• #7

BillyBob

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Alright thanks for all the help! + Rep

 

• Mar 27, 2015

• #8

BillyBob

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How would I desolder the spring? From what side? Or does it even need to be removed? Also sorry for asking some many questions just don't want to ruin my first laser im making.

 

Last edited: Mar 27, 2015

• Mar 27, 2015

• #9

The Lightning Stalker

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Heat and pull
Either side
You can leave it.
It doesn't matter.
It's up to you. :beer:

 

• Mar 27, 2015

• #10

alessnilsen

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From the images, seems that your spring is just soldered, it means that if you melt the solder it must come off easily. By the way, if it doesn't come off, then there's a hole in the board where part of the spring is inserted, if this is your case, you need to melt the solder and with some tool twist the spring to unscrew it from the hole. You can "cut" the spring off if you want, or just leave it. :yh:

 

Last edited: Mar 27, 2015