Thanks, that's really kind of you. I'm afraid the shipping from the US might be very expensive though!
Does anyone know a good place to buy suitable epoxy in Austria? It seems I can't find anything...
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On Sat, May 4, 2019 at 12:46 AM J. L. Trantham <jltran@...> wrote: Oops.
That was meant for Cheater. Cheater, if you only need one packet, I can send you one.
Joe
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of J. L. Trantham Sent: Friday, May 03, 2019 5:20 PM To: [email protected] Subject: Re: [TekScopes] [OT] Best glue to repair lifted trace?
Stefan,
I had a problem with a 53132A (if I remember correctly) where the display disconnects from the mother board and had to 're-glue' the connector on the display board.
I used Hardman # 04004 and it worked perfectly.
You can check it out here:
Hope this helps.
Good luck.
Joe
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of stefan_trethan Sent: Friday, May 03, 2019 8:38 AM To: [email protected] Subject: Re: [TekScopes] [OT] Best glue to repair lifted trace?
Epoxy would be much better.
Probably still won't survive direct soldering (most fast cure epoxy glues don't have the same heat resistance as PCB material), but it will anchor the connector better than CA.
With lifted pads or broken tracks it is always preferable to use a bit of wire and make a connection to the next pad, or at least a substantial undamaged stretch of track, rather than attempting a repair directly at the lifted pad / break.
ST
On Fri, May 3, 2019 at 3:29 PM cheater cheater <cheater00@...> wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the glue has to survive that. I'll also need to add some structural solder on the sides. Is cyanoacrylate a good idea here? Anything better than that? Thanks.
|
Would an epoxy glue be suitable if it lists, as one of its applications, gluing down heatsinks? Thanks
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On Sat, May 4, 2019 at 1:25 AM cheater00 cheater00 <cheater00@...> wrote: Thanks, that's really kind of you. I'm afraid the shipping from the US might be very expensive though!
Does anyone know a good place to buy suitable epoxy in Austria? It seems I can't find anything...
On Sat, May 4, 2019 at 12:46 AM J. L. Trantham <jltran@...> wrote:
Oops.
That was meant for Cheater. Cheater, if you only need one packet, I can send you one.
Joe
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of J. L. Trantham Sent: Friday, May 03, 2019 5:20 PM To: [email protected] Subject: Re: [TekScopes] [OT] Best glue to repair lifted trace?
Stefan,
I had a problem with a 53132A (if I remember correctly) where the display disconnects from the mother board and had to 're-glue' the connector on the display board.
I used Hardman # 04004 and it worked perfectly.
You can check it out here:
Hope this helps.
Good luck.
Joe
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of stefan_trethan Sent: Friday, May 03, 2019 8:38 AM To: [email protected] Subject: Re: [TekScopes] [OT] Best glue to repair lifted trace?
Epoxy would be much better.
Probably still won't survive direct soldering (most fast cure epoxy glues don't have the same heat resistance as PCB material), but it will anchor the connector better than CA.
With lifted pads or broken tracks it is always preferable to use a bit of wire and make a connection to the next pad, or at least a substantial undamaged stretch of track, rather than attempting a repair directly at the lifted pad / break.
ST
On Fri, May 3, 2019 at 3:29 PM cheater cheater <cheater00@...> wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the glue has to survive that. I'll also need to add some structural solder on the sides. Is cyanoacrylate a good idea here? Anything better than that? Thanks.
|
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
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On 5/3/2019 6:28 AM, cheater cheater wrote: I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the glue has to survive that. I'll also need to add some structural solder on the sides. Is cyanoacrylate a good idea here? Anything better than that? Thanks.
|
Thanks. This is an internal plug which is not accessible from the outside.
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On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the glue has to survive that. I'll also need to add some structural solder on the sides. Is cyanoacrylate a good idea here? Anything better than that? Thanks.
|
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
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On 5/4/2019 9:20 AM, cheater cheater wrote: Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the glue has to survive that. I'll also need to add some structural solder on the sides. Is cyanoacrylate a good idea here? Anything better than that? Thanks.
|
Here you go!
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Show quoted text
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote: okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
Glue it back - remove all debris first. After that I would reinforce the connections with a wire - solder onto existing traces.
I'm thinking that there is a problem with the connector - why would it brake in the first place?
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On Sat, May 4, 2019 at 7:23 AM cheater cheater <cheater00@...> wrote: Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...>
wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the
end
of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is
still
attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
Aha! okay, it looks like the power pins are surface mount so there must be something designed to help add mechanical retention to the PCB as well?
Either way looks like a real easy thing to fix as it aint exactly a fine pitch multi-pin connector!
I would say step one is to clean things up which I think involves (carefully!) unsoldering the remaining pin from the trace so you can get to things. Then I would scrape the solder resist off the copper over the via area(s) and tin it ready for the repair.
If there are retention features, and they are not busted that will make things easier to re-seat the connector body to the board, if not or if they are broken, you could try and find a replacement from Farnell/RS/Digi/whoever but failing that use a bit of epoxy to secure it enough to allow you to repair and re-solder the pins to the traces. I would be using copper foil for that, tin and sweat it on.
I have found that the tacky copper foil sold for RF shielding works well for this as (to my surprise) the glue does not stop you getting a nice bead of solder round the edge and the tackiness holds it in place as you do it!
Then add more epoxy to secure the body if you think it needs it and yopu're done. I really don't think you will find it too difficult to do.
Good luck!
Adrian
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On 5/4/2019 1:23 PM, cheater cheater wrote: Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
That's the plan, unfortunately I can't find an acceptable source of high temperature resistant, electrically insulating epoxy in Austria. The closest is in Germany, but that's still 10 euro shipping.
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On Sat, May 4, 2019 at 2:54 PM Tony Fleming <czecht@...> wrote: Glue it back - remove all debris first. After that I would reinforce the connections with a wire - solder onto existing traces.
I'm thinking that there is a problem with the connector - why would it brake in the first place?
On Sat, May 4, 2019 at 7:23 AM cheater cheater <cheater00@...> wrote:
Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...>
wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the
end
of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is
still
attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
I really don't understand this insistence on 'high temperature' epoxy, as I said, re-seat the connector and if it has no retention itself then clamp it or put a bit of epoxy away from the solder area to hold it , then solder, then epoxy.
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On 5/4/2019 3:15 PM, cheater cheater wrote: That's the plan, unfortunately I can't find an acceptable source of high temperature resistant, electrically insulating epoxy in Austria. The closest is in Germany, but that's still 10 euro shipping.
|
cheater cheater wrote on 5/4/2019 10:15 AM: That's the plan, unfortunately I can't find an acceptable source of high temperature resistant, electrically insulating epoxy in Austria. The closest is in Germany, but that's still 10 euro shipping.
On Sat, May 4, 2019 at 2:54 PM Tony Fleming <czecht@...> wrote: <snip> Hello-- Do you have automobile-supply stores in Austria such as this one... <> If so, you might investigate whether they sell high-temperature silicone gasket sealant such as... This might do the job. 73-- Brad? AA1IP
|
Silicone will rip with mechanical stress. Epoxy is much stronger. Regards, Mark W7MLG On Sat, May 4, 2019 at 8:56 AM Brad Thompson <brad.thompsonaa1ip@...> wrote:
cheater cheater wrote on 5/4/2019 10:15 AM:
That's the plan, unfortunately I can't find an acceptable source of high temperature resistant, electrically insulating epoxy in Austria. The closest is in Germany, but that's still 10 euro shipping.
On Sat, May 4, 2019 at 2:54 PM Tony Fleming <czecht@...> wrote: <snip> Hello--
Do you have automobile-supply stores in Austria such as this one...
<> If so, you might investigate whether they sell high-temperature silicone gasket sealant such as...
This might do the job.
73--
Brad AA1IP
|
Good warning. Thanks.
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On Sat, May 4, 2019 at 6:20 PM Mark Goldberg <marklgoldberg@...> wrote: Silicone will rip with mechanical stress. Epoxy is much stronger.
Regards,
Mark W7MLG
On Sat, May 4, 2019 at 8:56 AM Brad Thompson <brad.thompsonaa1ip@...> wrote:
cheater cheater wrote on 5/4/2019 10:15 AM:
That's the plan, unfortunately I can't find an acceptable source of high temperature resistant, electrically insulating epoxy in Austria. The closest is in Germany, but that's still 10 euro shipping.
On Sat, May 4, 2019 at 2:54 PM Tony Fleming <czecht@...> wrote: <snip> Hello--
Do you have automobile-supply stores in Austria such as this one...
<> If so, you might investigate whether they sell high-temperature silicone gasket sealant such as...
This might do the job.
73--
Brad AA1IP
|
I use Circuit Works CW2500 epoxy to repair traces on a PCB and overcoat the result.? Its a good epoxy but somewhat expensive.? All epoxy "glues" will melt when soldering so plan accordingly.? In your case I would 1.? remove the connector, 2.? use CW2500 to put the trace back on the board, 3.? scrape mask off a strip of the conductor after its repaired, 4.? solder a small wire or strip of copper tape to the repaired trace, 5. Put the connector (better, a new one) back on the board, 6. use CW2500 to overcoat the repaired trace. Amazon and Newark sell CW2500 but I have no idea what the shipping might be to Austria.
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On Saturday, May 4, 2019, 02:06:46 PM CDT, cheater cheater <cheater00@...> wrote: Good warning. Thanks. On Sat, May 4, 2019 at 6:20 PM Mark Goldberg <marklgoldberg@...> wrote: Silicone will rip with mechanical stress. Epoxy is much stronger.
Regards,
Mark W7MLG
On Sat, May 4, 2019 at 8:56 AM Brad Thompson <brad.thompsonaa1ip@...> wrote:
cheater cheater wrote on 5/4/2019 10:15 AM:
That's the plan, unfortunately I can't find an acceptable source of high temperature resistant, electrically insulating epoxy in Austria. The closest is in Germany, but that's still 10 euro shipping.
On Sat, May 4, 2019 at 2:54 PM Tony Fleming <czecht@...> wrote: <snip> Hello--
Do you have automobile-supply stores in Austria such as this one...
<> If so, you might investigate whether they sell high-temperature silicone gasket sealant such as...
This might do the job.
73--
Brad? AA1IP
|
Greetings, I dunno how much I would trust a glue to hold down the connector . From looking at the picture I would be inclined to drill a fine hole on either side of the pin or pins and tie it down with a copper wire and then solder it to the pin to remove any slack in the tiedown. Or a single hole for each pin and push a sewing pin thru the hole with the head of the pin on the other side of the board (pin head bigger than the hole) and curl the other end over the connector pin , nip it off and solder out any slack
If there is something on the other side of the board that would be shorted to the pin, a few wraps of thread could also hold things down and give the thread a drip of CA glue to harden up thread. Presumably the connector pins are supposed to hold the connector down but perhaps the plastic connector body could be tacked down with variations of the above techniques and relieve the pins from that duty.
And like other have said, getting CA glue fumes from soldering in yours eyes is a real eye sore! Your eye muscles will shut your eyes so tight the sun won't make it thru!!!
Dave
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Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
Ouch, I'll steer clear then! Thanks!
toggle quoted message
Show quoted text
On Sun, May 5, 2019 at 2:52 AM Daveolla <grobbins@...> wrote: Greetings, I dunno how much I would trust a glue to hold down the connector . From looking at the picture I would be inclined to drill a fine hole on either side of the pin or pins and tie it down with a copper wire and then solder it to the pin to remove any slack in the tiedown. Or a single hole for each pin and push a sewing pin thru the hole with the head of the pin on the other side of the board (pin head bigger than the hole) and curl the other end over the connector pin , nip it off and solder out any slack
If there is something on the other side of the board that would be shorted to the pin, a few wraps of thread could also hold things down and give the thread a drip of CA glue to harden up thread. Presumably the connector pins are supposed to hold the connector down but perhaps the plastic connector body could be tacked down with variations of the above techniques and relieve the pins from that duty.
And like other have said, getting CA glue fumes from soldering in yours eyes is a real eye sore! Your eye muscles will shut your eyes so tight the sun won't make it thru!!!
Dave
Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
How long do the Loctite, MG Chemicals, Hardman, and Circuit Works epoxy glues hold after opened? Days, months, or years? Thanks
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On Sun, May 5, 2019 at 5:34 PM cheater00 cheater00 <cheater00@...> wrote: Ouch, I'll steer clear then! Thanks!
On Sun, May 5, 2019 at 2:52 AM Daveolla <grobbins@...> wrote:
Greetings, I dunno how much I would trust a glue to hold down the connector . From looking at the picture I would be inclined to drill a fine hole on either side of the pin or pins and tie it down with a copper wire and then solder it to the pin to remove any slack in the tiedown. Or a single hole for each pin and push a sewing pin thru the hole with the head of the pin on the other side of the board (pin head bigger than the hole) and curl the other end over the connector pin , nip it off and solder out any slack
If there is something on the other side of the board that would be shorted to the pin, a few wraps of thread could also hold things down and give the thread a drip of CA glue to harden up thread. Presumably the connector pins are supposed to hold the connector down but perhaps the plastic connector body could be tacked down with variations of the above techniques and relieve the pins from that duty.
And like other have said, getting CA glue fumes from soldering in yours eyes is a real eye sore! Your eye muscles will shut your eyes so tight the sun won't make it thru!!!
Dave
Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
Does anyone see a reason not to use UHU Endfest? Here's a datasheet in English:
It looks like a good contender for an OK glue for this purpose. But I wouldn't know what might be wrong with a glue used for glueing down traces. Thanks.
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On Sun, May 5, 2019 at 5:46 PM cheater00 cheater00 <cheater00@...> wrote: How long do the Loctite, MG Chemicals, Hardman, and Circuit Works epoxy glues hold after opened? Days, months, or years? Thanks
On Sun, May 5, 2019 at 5:34 PM cheater00 cheater00 <cheater00@...> wrote:
Ouch, I'll steer clear then! Thanks!
On Sun, May 5, 2019 at 2:52 AM Daveolla <grobbins@...> wrote:
Greetings, I dunno how much I would trust a glue to hold down the connector . From looking at the picture I would be inclined to drill a fine hole on either side of the pin or pins and tie it down with a copper wire and then solder it to the pin to remove any slack in the tiedown. Or a single hole for each pin and push a sewing pin thru the hole with the head of the pin on the other side of the board (pin head bigger than the hole) and curl the other end over the connector pin , nip it off and solder out any slack
If there is something on the other side of the board that would be shorted to the pin, a few wraps of thread could also hold things down and give the thread a drip of CA glue to harden up thread. Presumably the connector pins are supposed to hold the connector down but perhaps the plastic connector body could be tacked down with variations of the above techniques and relieve the pins from that duty.
And like other have said, getting CA glue fumes from soldering in yours eyes is a real eye sore! Your eye muscles will shut your eyes so tight the sun won't make it thru!!!
Dave
Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
Sorry, that was the wrong link. The right product is UHU Endfest 300. Datasheet here:
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On Sun, May 5, 2019 at 6:43 PM cheater00 cheater00 <cheater00@...> wrote: Does anyone see a reason not to use UHU Endfest? Here's a datasheet in English:
It looks like a good contender for an OK glue for this purpose. But I wouldn't know what might be wrong with a glue used for glueing down traces. Thanks.
On Sun, May 5, 2019 at 5:46 PM cheater00 cheater00 <cheater00@...> wrote:
How long do the Loctite, MG Chemicals, Hardman, and Circuit Works epoxy glues hold after opened? Days, months, or years? Thanks
On Sun, May 5, 2019 at 5:34 PM cheater00 cheater00 <cheater00@...> wrote:
Ouch, I'll steer clear then! Thanks!
On Sun, May 5, 2019 at 2:52 AM Daveolla <grobbins@...> wrote:
Greetings, I dunno how much I would trust a glue to hold down the connector . From looking at the picture I would be inclined to drill a fine hole on either side of the pin or pins and tie it down with a copper wire and then solder it to the pin to remove any slack in the tiedown. Or a single hole for each pin and push a sewing pin thru the hole with the head of the pin on the other side of the board (pin head bigger than the hole) and curl the other end over the connector pin , nip it off and solder out any slack
If there is something on the other side of the board that would be shorted to the pin, a few wraps of thread could also hold things down and give the thread a drip of CA glue to harden up thread. Presumably the connector pins are supposed to hold the connector down but perhaps the plastic connector body could be tacked down with variations of the above techniques and relieve the pins from that duty.
And like other have said, getting CA glue fumes from soldering in yours eyes is a real eye sore! Your eye muscles will shut your eyes so tight the sun won't make it thru!!!
Dave
Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|
Cheeter asked: "Does anyone see a reason not to use UHU Endfest?"Yes, I do.? It has a very low temperature range (80 Deg C max).? They also make no mention of electrical conductivity.? While most epoxies are insulators and it is simple to test a sample, the lack of this information implies they have no expectation of this kind of use.? That is another red flag to me. BTW, my favorite, CW2500, boasts short term service temperature to 600 Deg F.? And, its made for this purpose.? My experience has been all epoxies begin to fail around 80 deg C (Water boils at 100 Deg C).? But they each fail in different ways.? CW2500 begins to soften, then turns to sticky goo which hardens once cooled.? If the overheating period is short, the final result is still sound. Cheeter asked: "What is the shelf life of these products?"CW2500 is 12 months according to the manufacturers data sheet.
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On Sunday, May 5, 2019, 11:43:30 AM CDT, cheater cheater <cheater00@...> wrote: Does anyone see a reason not to use UHU Endfest? Here's a datasheet in English: It looks like a good contender for an OK glue for this purpose. But I wouldn't know what might be wrong with a glue used for glueing down traces. Thanks. On Sun, May 5, 2019 at 5:46 PM cheater00 cheater00 <cheater00@...> wrote: How long do the Loctite, MG Chemicals, Hardman, and Circuit Works epoxy glues hold after opened? Days, months, or years? Thanks
On Sun, May 5, 2019 at 5:34 PM cheater00 cheater00 <cheater00@...> wrote:
Ouch, I'll steer clear then! Thanks!
On Sun, May 5, 2019 at 2:52 AM Daveolla <grobbins@...> wrote:
Greetings, I dunno how much I would trust a glue to hold down the connector . From looking at the picture I would be inclined to? drill a fine hole on either side of the pin or pins and tie it down with a copper wire and then solder it to the pin to remove any slack in the tiedown.? Or a single hole for each pin and push a sewing pin thru the hole with the head of the pin on the other side of the board (pin head bigger than the hole) and curl the other end over the connector pin , nip it off and solder out any slack
If? there is something? on the other side of the board that would be shorted to the pin, a few wraps of thread could also hold things down and give the thread a? drip of CA glue to? harden? up thread.? Presumably the connector pins are supposed to hold the connector? down but perhaps? the plastic connector body could be tacked down with variations of the above techniques? and? relieve the pins from that duty.
And like other have said, getting CA glue fumes from soldering? in yours? eyes is a real eye sore! Your eye muscles will shut your eyes so tight the sun won't make it thru!!!
Dave
Here you go!
On Sat, 4 May 2019, 14:02 Adrian <Adrian@... wrote:
okay, help me out here because I'm confused/bemused by 25+ posts about high temp glue needed to hold down a connector on a PCB so I've obviously missed something!
First off, am I right in that:
a) A (thru-hole?) internal connector has come off a PCB and busted a ground pin in the process.
b) It left (one?) other pin still electrically connected to its pad and trace but those have peeled of the surface of the board.
c) You think can reposition the connector to the board and sort the ground pin by somehow re-soldering it
d) You believe you can add glue (epoxy) around the connector to secure it to the PCB.
If the above is correct why do you need glue for a trace that can withstand soldering temperatures - the trace/PCB bond cannot be adding to the retention of the connector against connection/disconnection forces - so why not re-position/solder everything then add the epoxy when you're done and brush on a bit of conformal coat or wire-tak or something to protect/secure the 'loose' trace?
BTW you know that saying " A picture is worth a thousand words"? That is very true in cases like this!
Adrian
On 5/4/2019 9:20 AM, cheater cheater wrote:
Thanks. This is an internal plug which is not accessible from the outside.
On Sat, May 4, 2019 at 3:06 AM John Kolb <jlkolb@...> wrote:
After repair, I would suggest a short extension cable left attached to the equipment, so all plugging/inplugging stresses are moved to the end of the extender.
Jophn
On 5/3/2019 6:28 AM, cheater cheater wrote:
I have a piece of equipment where a trace was lifted. The part is still attached and I would like to glue it down. The part is a socket for a cable, and the plug is difficult to insert and remove. I will have to solder the other pin which is the ground plane, and broke off, so the
glue
has to survive that. I'll also need to add some structural solder? on
the
sides. Is cyanoacrylate a good idea here? Anything better than that?
Thanks.
|