SMD practice
 

Starting out late in life as an SMD convert, what
are the tricks, techniques, hints and kinks that
you use for assembling them?

SMD practice
 

In article ,
says...

Starting out late in life as an SMD convert, what
are the tricks, techniques, hints and kinks that
you use for assembling them?

Look on youtube for the videos.

YOu need a stereo microscope. Amscope makes one that is 10 power for
just under $ 200 that works well. Then a hot air rework station. There
are some for about $ 60 on ebay that are good to get your feet wet with.
Goods ones are around $ 300 and up.

Some liquid flux, solder of around .015 and .025 in diameter. Solder
paste in the syringes. Tweezers and solder wick.

It is not hard, At 66 I tought myself to do it. Get some old computer
boards with the smd and practice on them removing and installing the
components.

If you can stand him, look for Louis Rossman on youtube.

SMD practice
 

On Wed, 14 Feb 2018 16:13:29 +0000, Gareth's Downstairs Computer wrote:

Starting out late in life as an SMD convert, what are the tricks,
techniques, hints and kinks that you use for assembling them?

I use a USB microscope, got it for under UKP 20 from Lidls.

It takes some practice to actually watch the monitor rather than the
board but after a half hour or so it becomes natural.

SMD practice
 

In article , says...

On Wed, 14 Feb 2018 16:13:29 +0000, Gareth's Downstairs Computer wrote:

Starting out late in life as an SMD convert, what are the tricks,
techniques, hints and kinks that you use for assembling them?

I use a USB microscope, got it for under UKP 20 from Lidls.

It takes some practice to actually watch the monitor rather than the
board but after a half hour or so it becomes natural.

I tried one of the inexpensive usb scopes and could not use it at all.
It was not clear enough and there was a lag time brom the time I moved
my hand to the screen updated.

They may have improved them now.

They do make some high dollar ones that are suppose to be very good, but
very pricey.

Anyway, a good microscope of some kind will go a long way in working
with the SMD.

SMD practice
 

On 14/02/2018 22:16, Ralph Mowery wrote:
In article , says...

On Wed, 14 Feb 2018 16:13:29 +0000, Gareth's Downstairs Computer wrote:

Starting out late in life as an SMD convert, what are the tricks,
techniques, hints and kinks that you use for assembling them?

I use a USB microscope, got it for under UKP 20 from Lidls.

It takes some practice to actually watch the monitor rather than the
board but after a half hour or so it becomes natural.

I tried one of the inexpensive usb scopes and could not use it at all.
It was not clear enough and there was a lag time brom the time I moved
my hand to the screen updated.

They may have improved them now.

They do make some high dollar ones that are suppose to be very good, but
very pricey.

Anyway, a good microscope of some kind will go a long way in working
with the SMD.


I have such a USB device, but need to dismount it from its structure
in order to be able to examine stuff on the flat table and not a few
inches in the air.

As to starting at the age of 66, that's where I am now at least until
next week :-)

SMD practice
 

On 2/14/2018 4:16 PM, Ralph Mowery wrote:
In article , says...

On Wed, 14 Feb 2018 16:13:29 +0000, Gareth's Downstairs Computer wrote:

Starting out late in life as an SMD convert, what are the tricks,
techniques, hints and kinks that you use for assembling them?

I use a USB microscope, got it for under UKP 20 from Lidls.

It takes some practice to actually watch the monitor rather than the
board but after a half hour or so it becomes natural.

I tried one of the inexpensive usb scopes and could not use it at all.
It was not clear enough and there was a lag time brom the time I moved
my hand to the screen updated.

They may have improved them now.

They do make some high dollar ones that are suppose to be very good, but
very pricey.

Anyway, a good microscope of some kind will go a long way in working
with the SMD.

In case you are just starting to look at microscopes:
There are really two families of optical microscopes that you will find
out there, and what really works best for something like working with
SMD is what is usually called a stereo microscope. The emphasis is on a
wide field of view, with lower magnification, compared to something a
medical researcher might use. A stereo scope will have separate optical
systems for your eyes. (Not the same as binocular eyepieces for a
non-stereo scope!) It would typically have magnification somewhere in
the range 5X - 40X, with the lower part of that best suited for this
task. And it would have a field of view that can encompass SMD parts and
also their surrounding area where you were trying to (un)mount them. A
good one is not dirt cheap, but I have seen quite respectable ones
between one and two hundred dollars. (I'll let others convert to other
currencies as they might want to!)
The "medical" kind of microscope might have magnification up to 1000X or
higher, but even at its lowest powers would have a field of view
terribly small for this kind of use.
Stereo scopes are more often used with lighting from above onto the
object, while medical scopes are often used for transmission lighting.
Bob W, WA9D

SMD practice
 

On 17/02/2018 19:54, Bob Wilson wrote:
On 2/14/2018 4:16 PM, Ralph Mowery wrote:
In article , says...

On Wed, 14 Feb 2018 16:13:29 +0000, Gareth's Downstairs Computer wrote:

Starting out late in life as an SMD convert, what are the tricks,
techniques, hints and kinks that you use for assembling them?

I use a USB microscope, got it for under UKP 20 from Lidls.

It takes some practice to actually watch the monitor rather than the
board but after a half hour or so it becomes natural.

I tried one of the inexpensive usb scopes and could not use it at all.
It was not clear enough and there was a lag time brom the time I moved
my hand to the screen updated.

They may have improved them now.

They do make some high dollar ones that are suppose to be very good, but
very pricey.

Anyway, a good microscope of some kind will go a long way in working
with the SMD.

In case you are just starting to look at microscopes:
There are really two families of optical microscopes that you will find
out there, and what really works best for something like working with
SMD is what is usually called a stereo microscope. The emphasis is on a
wide field of view, with lower magnification, compared to something a
medical researcher might use. A stereo scope will have separate optical
systems for your eyes. (Not the same as binocular eyepieces for a
non-stereo scope!) It would typically have magnification somewhere in
the range 5X - 40X, with the lower part of that best suited for this
task. And it would have a field of view that can encompass SMD parts and
also their surrounding area where you were trying to (un)mount them. A
good one is not dirt cheap, but I have seen quite respectable ones
between one and two hundred dollars. (I'll let others convert to other
currencies as they might want to!)
The "medical" kind of microscope might have magnification up to 1000X or
higher, but even at its lowest powers would have a field of view
terribly small for this kind of use.
Stereo scopes are more often used with lighting from above onto the
object, while medical scopes are often used for transmission lighting.
Bob W, WA9D

Ta. Perhaps I'll nip up the road to Brunel Microscopes in this town!