Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

FusionDrives GB - CLOSED






Joined
Oct 25, 2007
Messages
221
Points
0
Ok i was curious so I googled it. It seems you want to stick the smd parts on with solder paste and cook the circuit board?

Remember when i dropped a comment a while back saying that you would go crazy soldering these together? Yeah.... :D
 

z000z

0
Joined
Jan 22, 2008
Messages
50
Points
0
That's how you do it commercially, dunno if that's the easiest way without the tools though. Generally you use a metal screen with holes cut out of it for the pads of the board, you place the board under it and squeegee the paste over the screen making the paste the thickness of the metal screen, on the pads.

Then in a commercial environment a computer controlled robot picks up the parts and places them onto the pads with the paste on them.

Then the boards are run through an oven melting the paste into solder.

But you have to be fairly careful with the oven part, it has to be very level (or your parts slide somewhere else) and you can't let it be at the melting point for too long or you risk messing up some of the parts or also getting the sliding problem, and too short and you don't fully melt the solder paste. The oven is usually part of a conveyor belt too, so the boards aren't just sitting there they're moving through temperature ranges, I'm not sure how well it would work in a normal oven.
 

Cxrazy

0
Joined
Aug 15, 2007
Messages
179
Points
0
TheMonk said:
[quote author=BlueFusion link=1195298965/330#336 date=1204006142]They are 3mm surface mount so fraid thats not likely ;)
and i'll get pix asap.
Any update on the pics. ::)[/quote]

^^^^ ;D
 
Joined
Jan 20, 2008
Messages
1,724
Points
0
How's the soldering coming?

Eagerly awaiting pics!

Also, If I opted to solder mine myself would I get them any faster?

I think for one of them I might not be using the board, I might try just soldering the components to eachother... and I suppose it'd be easier to not to have to unsolder them...
 
Joined
Jan 20, 2008
Messages
1,724
Points
0
By the way...

What's R3 (ie the big 2cm long thing that looks like a battery on the right side of the board)?

An awfully big resistor?
 

z000z

0
Joined
Jan 22, 2008
Messages
50
Points
0
pseudolobster said:
How's the soldering coming?

Eagerly awaiting pics!

Also, If I opted to solder mine myself would I get them any faster?

I think for one of them I might not be using the board, I might try just soldering the components to eachother... and I suppose it'd be easier to not to have to unsolder them...

If I understand correctly the parts are surface mount parts, which would mean they don't have any legs (and are also very small) so that would be some accomplishment to solder them together without using a board.
 
Joined
Jan 20, 2008
Messages
1,724
Points
0
pwnstar said:
see this post[/url]... the pot apparently a 3mm surface mount dealie.. the pic shows a 20mm long component... maybe a 10W resistor? :p

z000z: I've done it before... using magnification and a fine tipped iron it shouldn't really be that hard...
redesigning it three-dimensionally to fit in the smallest space possible is the hard part.
I know it's a crazy idea, but I'd like to try it... I'd like to see if I can fit this driver into a roughly 1cm cube if possible.
 

z000z

0
Joined
Jan 22, 2008
Messages
50
Points
0
That would be pretty cool to see, make sure and post pics if you do. :cool:
 
Joined
Sep 12, 2007
Messages
712
Points
0
hey i know it must be a pain get all of these soldered..
but any updates?
 
Joined
Jan 20, 2008
Messages
1,724
Points
0
I hate to be annoying, but is there any update on this?

it's been well over 2 weeks since you've had the boards, could you post some pics or at least let us know how it's going ?
 




Top