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I have seen a few ideas put up on here for desoldering and removing components. One idea was to use wooden toothpicks to clear out the hole. Another idea was to tap the board against the bench while the solder was still molten. I found the toothpicks can work but haven't had the courage to try banging the board so the solder flies out.
The RSGB magazine (RadCom) arrived yesterday and had an article about desoldering using hollow, stainless steel needles.
I was intrigued by this idea so checked up on it. The hollow needles (tubes) come as a set of different sizes and can be found on the usual auction sites quite cheaply. You select the right size to fit over the component lead and to also go through the hole in the PCB. Heat up the solder joint, apply some pressure to the needle and.... the component lead should just pop out leaving a nice clean hole. I have ordered a set so will soon get to find out for myself if they work well or not !
Reg???????????????????????? G4NFR
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Just search amazon / ebay for “Hollow Needle Desoldering Tool”
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The article is on page 53 of this months radcom
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Peter
M0PWX
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From: R. Tyson via groups.io
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I have seen a few ideas put up on here for desoldering and removing components. One idea was to use wooden toothpicks to clear out the hole. Another idea was to tap the board against the bench while the solder was still molten. I found
the toothpicks can work but haven't had the courage to try banging the board so the solder flies out.
The RSGB magazine (RadCom) arrived yesterday and had an article about desoldering using hollow, stainless steel needles.
I was intrigued by this idea so checked up on it. The hollow needles (tubes) come as a set of different sizes and can be found on the usual auction sites quite cheaply. You select the right size to fit over the component lead and to also go through the hole
in the PCB. Heat up the solder joint, apply some pressure to the needle and.... the component lead should just pop out leaving a nice clean hole. I have ordered a set so will soon get to find out for myself if they work well or not !
Reg???????????????????????? G4NFR
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A stainless steel dress making pin and soldering iron usually clears most pcb holes cheers Geoff GI0GDP
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THIS!! but make sure its stainless
jim
On Saturday, December 11, 2021, 12:45:39 PM PST, geoffrey pike via groups.io <gi0gdp@...> wrote:
A stainless steel dress making pin and soldering iron usually clears most pcb holes cheers Geoff GI0GDP
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Do yourself a favor and buy a de-soldering gun HAKO FR-301 I wished I did before messing up a lot of boards you will thank yourself, granted they are expensive you will end up becoming a builder?
On Saturday, December 11, 2021, 01:13:30 PM PST, jim via groups.io <ab7vf@...> wrote:
THIS!! but make sure its stainless
jim
On Saturday, December 11, 2021, 12:45:39 PM PST, geoffrey pike via groups.io <gi0gdp@...> wrote:
A stainless steel dress making pin and soldering iron usually clears most pcb holes cheers Geoff GI0GDP
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On Sat, Dec 11, 2021 at 08:45 PM, geoffrey pike wrote:
A stainless steel dress making pin and soldering iron usually clears most pcb holes
Hi Geoff, Done that before. Difference is these hollow tubes are placed over the short stub of the component lead. The joint is heated and the component pops out, with the leg of the component in the tube and it should also leave a nice clean hole, even when through plated. As long as the right size is selected it just pushes out the solder from the hole and also has the lead of the component inside it. In effect two jobs in one...... hopefully.....? They are also fitted with plastic handles. Demonstration by a guy on YouTube and he reckons they would be good for removing components like IC's . Reg???????????? G4NFR
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I use this dedicated desoldering iron that I bought from CPC. The knack is to wiggle the tip as it melts for thin wires.
An excellent tool, and costs only ?8.34.
Have fun,
Trystan G0KAY
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Looks like the same one that MPJA sells here in the US for $10.95 ( ), except that it's the 240 volt version. It's not quite as easy to use as a vacuum desoldering station or gun, but it works well and is far cheaper. An excellent addition to the bench of any builder who doesn't desolder enough things to justify a tool that costs hundreds of dollars.
I use this dedicated desoldering iron that I bought from CPC. The knack is to wiggle the tip as it melts for thin wires.
An excellent tool, and costs only ?8.34.
Have fun,
Trystan G0KAY
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Hi What not spend a bit more and buy this from CPC, also a spares are very cheap:
73 Andrew
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Thanks for the replies. I use a solder sucker and sometimes braid for removing components and cleaning the pads.
I only occasionally need to do it so don't want a costly solution sitting doing nothing most of the time. My work/operating space is already cluttered so can't afford to put anything else in there, just don't have the room
I thought the hollow needle tools would help on the odd occasion where I have through hole components to replace.
Gotta be worth a try at the price??????? >:-)
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I've used the wooden toothpick method with very good success.? It was a tip I picked up from the
Elecraft forum's guru.? The idea is not to try to reclaim the part to be removed.? He recommended?
just clipping and discarding the part, and then using the toothpick to clean out the hole.? This has
worked well for me.
Best -
Bruce K1FFX
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I discovered that the solder that I was using was an ever so tiny bit thinner than the PCB's holes, so I bought a drill bit the same diameter as the solder (don't recall the actual diameter) and now I just twirl that bit between my fingers to drill out any remaining solder after I remove the component.? As I recall the drill bit was outrageously expensive at about $2.xx.? Good luck!
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The best desoldering strategy for me has been to use some solder wick copper braid to clear excess solder and a pointy stainless probe to dress the hole.? I sharpened the taper on the Aven tip (Aven 20031) for the ideal size.? Having a pair of these probes can be useful when touching solder pads on a crowded PCB with a DVM.
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Never, ever shake hot solder off any connection.? When I worked for Motorola, my fellow engr decided to shake the solder off a coax end and solder went in his eye, causing scarring!
Joe W2JEJ
On Sun, Dec 12, 2021, 2:58 PM Bob W7DIT < cent@...> wrote: The best desoldering strategy for me has been to use some solder wick copper braid to clear excess solder and a pointy stainless probe to dress the hole.? I sharpened the taper on the Aven tip (Aven 20031) for the ideal size.? Having a pair of these probes can be useful when touching solder pads on a crowded PCB with a DVM.
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This is one of the reason, but not the only one, why I wear tempered-glass reading glasses nearly 24/7. ?
73 Jim N6OTQ? Sent from my quenched-gap spark transmitter.?
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On Dec 15, 2021, at 7:46 AM, JE Jesson <jejesson4@...> wrote:
? Never, ever shake hot solder off any connection.? When I worked for Motorola, my fellow engr decided to shake the solder off a coax end and solder went in his eye, causing scarring!
Joe W2JEJ
On Sun, Dec 12, 2021, 2:58 PM Bob W7DIT < cent@...> wrote: The best desoldering strategy for me has been to use some solder wick copper braid to clear excess solder and a pointy stainless probe to dress the hole.? I sharpened the taper on the Aven tip (Aven 20031) for the ideal size.? Having a pair of these probes can be useful when touching solder pads on a crowded PCB with a DVM.
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Yes, a great idea is to wear safety glasses and I add a blue-blocking light orange tint on my glasses for my late evening work. Works well to enhance restful sleep as any blue light signals your brain & body that it is morning.? Medical papers on the subject of light-triggered circadian cycles are very interesting :-)
73,
? Joe W2JEJ?
This is one of the reason, but not the only one, why I wear tempered-glass reading glasses nearly 24/7. ?
73 Jim N6OTQ? Sent from my quenched-gap spark transmitter.? ? Never, ever shake hot solder off any connection.? When I worked for Motorola, my fellow engr decided to shake the solder off a coax end and solder went in his eye, causing scarring!
Joe W2JEJ
On Sun, Dec 12, 2021, 2:58 PM Bob W7DIT < cent@...> wrote: The best desoldering strategy for me has been to use some solder wick copper braid to clear excess solder and a pointy stainless probe to dress the hole.? I sharpened the taper on the Aven tip (Aven 20031) for the ideal size.? Having a pair of these probes can be useful when touching solder pads on a crowded PCB with a DVM.
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And … anybody else notice how a lot of advertisers on TV are making their ads all blue so if you leave the set on, the ads wake you up?
73 Jim N6OTQ? Sent from my quenched-gap spark transmitter.?
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On Dec 15, 2021, at 10:04 AM, JE Jesson <jejesson4@...> wrote:
? Yes, a great idea is to wear safety glasses and I add a blue-blocking light orange tint on my glasses for my late evening work. Works well to enhance restful sleep as any blue light signals your brain & body that it is morning.? Medical papers on the subject of light-triggered circadian cycles are very interesting :-)
73,
? Joe W2JEJ?
This is one of the reason, but not the only one, why I wear tempered-glass reading glasses nearly 24/7. ?
73 Jim N6OTQ? Sent from my quenched-gap spark transmitter.? ? Never, ever shake hot solder off any connection.? When I worked for Motorola, my fellow engr decided to shake the solder off a coax end and solder went in his eye, causing scarring!
Joe W2JEJ
On Sun, Dec 12, 2021, 2:58 PM Bob W7DIT < cent@...> wrote: The best desoldering strategy for me has been to use some solder wick copper braid to clear excess solder and a pointy stainless probe to dress the hole.? I sharpened the taper on the Aven tip (Aven 20031) for the ideal size.? Having a pair of these probes can be useful when touching solder pads on a crowded PCB with a DVM.
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The same thing happens with those brass spnge soldering iron tip cleaners. ?Good thing I wear safety glasses too. ?
I am going back to the wet sponge since it does not spray tine solder balls everywhere.
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I’ve never used the brass mesh crack-pipe filter for tip cleaning. I’ve always gone with a wet sponge, and recently I discovered a little tin of flux that was so useful I glued it to my soldering iron stand. If I can find the lid and where I got it, I’ll share the info.
73
Jim N6OTQ
Sent from my quenched-gap spark transmitter.
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OT: Great post. Where do you suggest we find “orange tint” for our evening reading glasses?
Thank you.
Ward Merdes -KL7IXW Fairbanks, Alaska
On Wed, Dec 15, 2021 at 7:56 AM Arthur Paton < artpaton@...> wrote: The same thing happens with those brass spnge soldering iron tip cleaners.? Good thing I wear safety glasses too. ?
I am going back to the wet sponge since it does not spray tine solder balls everywhere.
-- WMM -- Ward Merdes % MERDES LAW OFFICE, P.C. P.O. Box 71309 Fairbanks, AK 99707-1309 (907) 452-5400 (907) 452-8879 (f) ***Board Certified Alaskan Personal Injury Attorneys*** This email is confidential and may contain attorney/client and work-product content. If you are not its intended recipient, please return this email to us, accept our apologies for the misdirection, and destroy all copies. The Statute of Limitations for injury/death to an adult is two years in Alaska. Thank you.
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Peter M0PWX
jim
Trystan G0KAY
Shirley Dulcey KE1L
Andrew Lenton
JE Jesson
Ward Merdes (#2457) - KL7IXW