Homemede desoldering tool

[nick_f]

Those solder pumps work quite well. Make sure to get one with a plastic tip, and move your iron out of the way just before hitting the button to suck the solder out. Otherwise, you can damage the solder pads.

Hobbes,
What I did on my desoldering pump was to add a piece of silicone tube over the teflon tip. The silicone is flexible, and it prevents the board from getting damaged.

Regards,
Nicoale

[Fred]

Hobbes,
What I did on my desoldering pump was to add a piece of silicone tube over the teflon tip. The silicone is flexible, and it prevents the board from getting damaged.

Regards,
Nicoale

Excellent idea.I have plenty o silicon tube from RC stuff,i will try it and see how it resists to heat.It will also "repair" old pumps with damaged tips.

[Max]

Mesh for desoldering. In the epoch of videocassette in the 80s I saw a technician that use this mesh for desolder. He has skill for to extract components with more 40 pins with it!

Hi,
yes, I used it many times too... but sometimes it's not so easy... and results are tracks flowing around! much depends on heat there.... if heat isn't enough well... better avoid that stuff... make just damages.

The trick is put mesh and melting fast all the solder in the way described ...then... it's kinda of strip waxing!

But if solder doesn't sink the mesh.... oh... BIG TROUBLES....

Was my preferred way for hard stuff... long ics... but heat could damage ics that way.... must be fast and furious!

Kind regards,
Max

[Esteban]

Never I try it... Just saw how works in skill man hands.

Regards

Esteban

[nick_f]

Also this tool is usual for to desolder components. This suck (aspires) the melted thin and suck strongly it. If you hot very well the pins, you can extract both side of solder.

For these manual suckers, use the largest ones you can obtain, they are more efficient. Also, put a piece of silicone tube over the tip of the pump, to extend a few mm. The tip will never get damaged, and because of the elasticity of silicone, it will protect the board as well.
The desoldering stations with vacuum pumps are very good, but can be quite expensive. I've seen many technicians not cleaning them properly and they used to work horribly. I took good care of mine and it was reliable everytime.
With the hot air gun, there is a different story. I used it to remove chips with over 200 pins from computer boards and it was working very well. Yet, at the place where I work now, a technician wouldn't use hot air guns for anything in the world, because, he sais, it burns the boards. He spent once half an hour to remove a SMD power transistor of a board, using his soldering iron and desoldering mesh. I tried the hot air gun one time and I also burnt the board. I just had a look at the settings, and noticed it was set on maximum temperature (about 800 celsius if I remember correctly). I lowered it around 400 celsius and it started working very nicely. However, I can't convince this technician the hot air gun is a good, reliable tool

[detectoman]

hello brother esteban i use
una brochita de alambritos de acero, luego limpio pasandola

[Esteban]

For these manual suckers, use the largest ones you can obtain, they are more efficient. Also, put a piece of silicone tube over the tip of the pump, to extend a few mm. The tip will never get damaged, and because of the elasticity of silicone, it will protect the board as well.
The desoldering stations with vacuum pumps are very good, but can be quite expensive. I've seen many technicians not cleaning them properly and they used to work horribly. I took good care of mine and it was reliable everytime.
With the hot air gun, there is a different story. I used it to remove chips with over 200 pins from computer boards and it was working very well. Yet, at the place where I work now, a technician wouldn't use hot air guns for anything in the world, because, he sais, it burns the boards. He spent once half an hour to remove a SMD power transistor of a board, using his soldering iron and desoldering mesh. I tried the hot air gun one time and I also burnt the board. I just had a look at the settings, and noticed it was set on maximum temperature (about 800 celsius if I remember correctly). I lowered it around 400 celsius and it started working very nicely. However, I can't convince this technician the hot air gun is a good, reliable tool

Hi Nick_f. Thanks very much.

The internal part of the pump must be cleaned every 20 sips, because thin is attached inside. Also the thin is an obstacle in the begining of the tract in the pump.

[Esteban]

hello brother esteban i use
una brochita de alambritos de acero, luego limpio pasandola

Hola Detectoman

¿Es esa brochita que se usa para limpiar enseres domésticos?

Saludos

Esteban

[detectoman]

esteban yo no se cual dices, yo digo una brochita corta de alambritos de acero muy finos y cobrizados, luego calientas indirectamente la brochita con un sopletito de lapicero y le pones fundente y la pasas sobre los puntos a desoldar
asi es absorbido el estano luego sacudes la brochita en un botecito de cuello reducido y vuelves a repetir la operacion y a pasarla hasta que este bien limpio, claro cuidando no aplicar demasiado el calor
puedes hacer la brochita desarmando una borlita de esas que se usan circulares, pones laminita de tubo de cobre para la fijacion
saludos
pruebala y dime si es mejor que las jeringas, yo no he usado jeringas nunca aqui no venden

[detectoman]

ahhhhhhhhh por detras le puedes poner una manta humeda o una esponja mojada para no afectar los ics, ese es invento del rancho
saludos

[Esteban]

Detectoman

Entiendo bien. Interesante método.

Saludos cordiales

Esteban

[Geo]

Mesh for desoldering. In the epoch of videocassette in the 80s I saw a technician that use this mesh for desolder. He has skill for to extract components with more 40 pins with it!

I tried it before years...
good results for IC's with many pins but not so good for simple components (resistors, transistors etc)...
Regards