What is a good de-soldiering iron/tool?

[evilkitty]

Re: What is a good de-soldiering iron/tool?

I'll give that a try next time, thanks
any suggestions on where to get that iron though? or a alternative one, to replace my crappy $2 to $4 irons

[stj]

Re: What is a good de-soldiering iron/tool?

you need to heat the board with hot air first before using an iron.

[evilkitty]

Re: What is a good de-soldiering iron/tool?

I'll admit i did not thing of using the tip cleaning tools with my gun on the pcb, if the solder will not melt i do not see how it would work though
i could not even get the caps out 80% of the time on the board that is what took so long, when i could not get the solder out of the empty hole with the gun i drilled it out
in the event i did get the solder to melt by the time i got the cap half way out it solidified (heat was applied the entire time)

[stj]

Re: What is a good de-soldiering iron/tool?

for clearing holes and other tricks.
https://www.aliexpress.com/item/10-K...862870959.html

https://www.aliexpress.com/item/High...841019452.html

[evilkitty]

Re: What is a good de-soldiering iron/tool?

no.
look a bit harder.

https://www.aliexpress.com/item/EU-P...786830474.html

I deiced to get my dad to get me one for my birthday, but this listing is no longer available
recommendations for a good iron? or where to get this one?

On a side note i did try to de-soldier some caps on a dell motherboard with the de-soldiering gun the solder just would not melt no matter how much heat i used and the holes were seemed too tight to pull air through, i ended up fighting it all day or around 6 hours and drilled out the solder left in the hole with a very tiny hand drill, it did boot the 1st time after replacing the bad caps, but not since, but i should remove the GPU it is probably making the PSU think there is a short (GT 210 calls for 20A PSU, PSU has 18A on the +12v)

[evilkitty]

Re: What is a good de-soldiering iron/tool?

If you have the room for it get a small computer table that works pretty good
for a soldering table

Just do not use the keyboard small table ——->
a lighted magnifying glass for me is a must have on my table

i have one of those, but i have my computer on it, i put my define r4 case on top of it so i can see through the case window

[sam_sam_sam]

Re: What is a good de-soldiering iron/tool?

I had to change (not replace) the tip once so far for some large pins, and it was a tight fit; lucky i do not mess with that size pin often (1mm square pin)

If the tip becomes uneven or a piece breaks off just grind the tip flat and ready to go again
A dermal tool with a 1.5” cut off disk work good for this or a very small grinder from Harbor Freight also works very well for this just use the side of the wheel for this

******I know you should never use the side of a grinder wheel but this grinder does not spins that fast and you can control it speed ********

Take the largest tip and drill the tip hole bigger to fit the pin
or save your broken tips—-> and grind the tip flat and use it on devices that have bigger pins

Or have more than one gun and have different tips on each one I have done this before

The guns fail in one of two ways either it does not heat or you will see this “——— or error “ which means that the temperature sensor failed

If the temperature sensor fails when it is ON the gun will become red hot where the heater element is and will not control the temperature

Both items are from Harbor Freight

[sam_sam_sam]

Re: What is a good de-soldiering iron/tool?

i have not replaced the usb connector yet, i think i will wait till i get a better iron before doing that

so far think i have not used over 350C, usually 275-300

Make sure that you run the clean rod alway to just before the plastic handle before you turn it off so that you do not have the flux in the Desoldiering Gun tube becomes clogged this happens when you have solder that has a lot of flux in

If this happens and you can not push the cleaning rod all way in turn unit off and wait until it cools then take 1/16 “ drill bit with the tip remove and carefully drill the gun tube clear a dermal tool works real good for this


You find when you are working with double sided boards if go to 775* F for me it works very well unless the pads are very small 650 to 675* F works very well also

The only time this becomes a problem is when you have shity boards that turn brown or black around the pads I have had turn the temperature down 625*f and add solder to the pads to remove the parts that kind a board

You can sometimes tell if it is one of these types of boards one side will white on one side and other side will be green or the board will be very very thin

Now doing USB surface mount jacks now that can real fun to do if lead are long enough just use the Desoldiering Gun Station and get as much of the solder as you can off of the pins BUT do not stay on any of those pins for very long or you will lift the pads right off the board or melt the plastic that hold the pin in the USB connector

This sometimes works if you take the Desoldiering Gun tip and lay it (side ways) on top of all the pins you can lift it right off the board but only if the pins are long enough and there is enough room for the gun to lay side ways does this work


Or if you have temperature controlled hot air gun station put smallest diameter tube cap on it and just heat the pins on the board and very carefully try to move the USB jack unit it comes free


The through hole USB connectors are very easy to do with the Desoldiering Gun Station

[sam_sam_sam]

Re: What is a good de-soldiering iron/tool?

If you have the room for it get a small computer table that works pretty good
for a soldering table

Just do not use the keyboard small table ——->
a lighted magnifying glass for me is a must have on my table

[evilkitty]

Re: What is a good de-soldiering iron/tool?

I have used it a few times now, very happy with it, had to change (not replace) the tip once so far for some large pins, and it was a tight fit; lucky i do not mess with that size pin often (1mm square pin)
i did pick up a set of spare parts, but i would still like to have a few more spare tips of the size i use most

capacitors just fall out

so far i have used it to replace a relay; crap caps in 3 boards, remove 4 plugs cause i would rather use through hole wire, remove a good cap for re-positioning, removing a 10-pin header would have never got it out without this

I do not have a good place to keep it set up so i keep it in the box it came in and i clean it after each session

i have not replaced the usb connector yet, i think i will wait till i get a better iron before doing that

so far think i have not used over 350C, usually 275-300

[sam_sam_sam]

Re: What is a good de-soldiering iron/tool?

evilkitty

How do you like your Desoldiering gun station

[evilkitty]

Re: What is a good de-soldiering iron/tool?

from where?

[stj]

Re: What is a good de-soldiering iron/tool?

no, i get them for £1.45 - i translated that into us$

[evilkitty]

Re: What is a good de-soldiering iron/tool?

spare tips should not cost more than 2$ each - just so you know.

Looks more like 10 everywhere i look one you add shipping, even without shipping it is 3 to 5 each, maybe you meant pounds not dollars


@sam_sam_sam Thanks for the links

[sam_sam_sam]

Re: What is a good de-soldiering iron/tool?

BTW do you have a link so i can pick up some spare tips for the zd-915

Here is a link to where I get some of my spare parts

http://www.mpja.com/Desolder-Station/products/496/

https://www.ebay.com/sch/m.html?_odk...d-917&_sacat=0

https://www.ebay.com/itm/40101350659...84.m1436.l2649

[stj]

Re: What is a good de-soldiering iron/tool?

spare tips should not cost more than 2$ each - just so you know.

[evilkitty]

Re: What is a good de-soldiering iron/tool?

You are right I did buy them at Mouser Electronic because DigiKey did not carry them

note that they are 2200 not 3300 uf
i think that is why you had a hard time trying to find a 12.5mm dia 3300 uf cap

BTW do you have a link so i can pick up some spare tips for the zd-915
i do not think i need to get a full repair kit since i have a glass tube right? just filters right?
i know you prefer the plastic design, and i do agree the it holds the filter better
i kinda want to mod the spring to make it stay in the center to keep from getting puled around the filter (ideas?)

[sam_sam_sam]

Re: What is a good de-soldiering iron/tool?

I figured out why you could not find it
looks like you used these: https://www.mouser.com/ProductDetail/EKYB350ELL222MK35S
Reference:
https://www.badcaps.net/forum/showpo...6&postcount=20
Attachment #2

You are right I did buy them at Mouser Electronic because DigiKey did not carry them

[evilkitty]

Re: What is a good de-soldiering iron/tool?

The two 2200uf@35 volt caps are a FR series will be the only that will right
right now I cannot find the bag tag for those caps that I had used 3300@35 volts I will see if I can find the ones that I used

I figured out why you could not find it
looks like you used these: https://www.mouser.com/ProductDetail/EKYB350ELL222MK35S
Reference:
https://www.badcaps.net/forum/showpo...6&postcount=20
Attachment #2

[evilkitty]

Re: What is a good de-soldiering iron/tool?

typical cheap ebay blue relay: SRD-05VDC-SLC
That was not coil resistance, that was the resistance on the output while the coil is low
the coil works fine, when the coil has power on it it functions as intended

let me use a diagram

50Kohm between C (Common) and NC (Normally Closed)

test was done in board, but i have C, NO, and NC all on pin headers, so i just unplugged my wires on it and checked the connectivity

It was not able to get every last spec of solder off every pin of the relay (4/5 worked good), but when i put these relays in i had to adjust the pin so they slice into the PCB hole a little, they are just not made for the 2.54mm board, but the pins can be bent a little to make them fit, but it is tight

if one of these relays fails like this again i am gonna cut the shell open and try some contact cleaner on the contacts

I checked the AC voltage, it is ~27VAC, as for the amperage, idk, but a piece of solid core Ethernet cable wire does not even get warm