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2009-08-02 by David Griffith
Can someone recommend a heat gun for around $50 that would be ideal for reflowing? -- David Griffith dgriffi@... A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?
2009-08-02 by Stefan Trethan
Not really, for $50. What you definitely need if you want any sort of consistency is electronic temperature control and adjustabe air volume. Mine cost around $100, not sure if there are any new ones for $50, maybe used? In any event, don't buy a gun without electronic temperature control, it is better to save the money for a real one, been there, wasted that money. If you only make very very small stuff a hot air soldering station would suffice, which can be had for $50, but is not meant to deliver a lot of air so it gets rather slow for any board larger than a postage stamp. You could make a hotplate for considerably less money, and a small oven would also be cheaper, maybe those are options? ST
On Sun, Aug 2, 2009 at 11:59 AM, David Griffith<dgriffi@...> wrote: > > Can someone recommend a heat gun for around $50 that would be ideal for > reflowing? > > -- > David Griffith > dgriffi@... > > A: Because it fouls the order in which people normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail? > >
2009-08-02 by Dylan Smith
El 02-ago-09, a las 11:31, Stefan Trethan escribió: > Not really, for $50. What you definitely need if you want any sort of > consistency is electronic temperature control and adjustabe air > volume. I get consistent results from a $30 electric paint stripping gun. Plenty of air, but not too much to blow away 0603 sized parts. Works very well for desoldering high pin count components too (such as DIP 40).
2009-08-03 by leon Heller
An embossing heat gun works quite well. I got a dual-temperature one for \ufffd20 (GBP) in a local craft shop. Leon -- Leon Heller Amateur radio call-sign G1HSM Yaesu FT-817ND transceiver Suzuki SV1000S motorcycle leon355@... http://www.geocities.com/leon_heller
2009-08-03 by roycepipkins
I also use an 20 USD embossing heat gun, combined with a hot plate at a (relatively) steady 100 C, with good results. Regards, Royce --- In Homebrew_PCBs@yahoogroups.com, "leon Heller" <leon355@...> wrote:
> > An embossing heat gun works quite well. I got a dual-temperature one for £20 > (GBP) in a local craft shop. > > Leon > -- > Leon Heller > Amateur radio call-sign G1HSM > Yaesu FT-817ND transceiver > Suzuki SV1000S motorcycle > leon355@... > http://www.geocities.com/leon_heller >
2009-08-03 by Adam Seychell
Dylan Smith wrote: > > > > El 02-ago-09, a las 11:31, Stefan Trethan escribi\ufffd: > > > Not really, for $50. What you definitely need if you want any sort of > > consistency is electronic temperature control and adjustabe air > > volume. > > I get consistent results from a $30 electric paint stripping gun. > Plenty of air, but not too much to blow away 0603 sized parts. Works > very well for desoldering high pin count components too (such as DIP > 40). > There are two variables that control temperature. One is distance from the nozzle and the other is heater element power. Sure you can control distance with cheap heat gun, but from experience its far safer to hold the nozzle relatively close and rely on temperature control. Large TQFP ICs should reflow shortly after the smaller 0603's begin to reflow. Maybe your $30 gun so happens to be at just the right power level.
2009-08-03 by michael tenore
Has anyone looked at those plastic weldeing units at Harbor freight? They look like the heat guns on the rework stations I,ve seen in the catalogs? They look like a soldering iron with a hollow heated tube for a tip and a hose for air to flow through.. ________________________________
From: Adam Seychell <a_seychell@...>
To: Homebrew_PCBs@yahoogroups.com
Sent: Monday, August 3, 2009 7:50:31 PM
Subject: Re: [Homebrew_PCBs] heat guns
Dylan Smith wrote:
>
>
>
> El 02-ago-09, a las 11:31, Stefan Trethan escribió:
>
> > Not really, for $50. What you definitely need if you want any sort of
> > consistency is electronic temperature control and adjustabe air
> > volume.
>
> I get consistent results from a $30 electric paint stripping gun.
> Plenty of air, but not too much to blow away 0603 sized parts. Works
> very well for desoldering high pin count components too (such as DIP
> 40).
>
There are two variables that control temperature. One is distance from
the nozzle and the other is heater element power. Sure you can control
distance with cheap heat gun, but from experience its far safer to hold
the nozzle relatively close and rely on temperature control. Large TQFP
ICs should reflow shortly after the smaller 0603's begin to reflow.
Maybe your $30 gun so happens to be at just the right power level.
[Non-text portions of this message have been removed]2009-08-03 by goodsurfer2000
do you have picture ? to see how look like this heat gun .. ? thank you --- In Homebrew_PCBs@yahoogroups.com, michael tenore <wb2lcw@...> wrote:
> > Has anyone looked at those plastic weldeing units at Harbor freight? They look > like the heat guns on the rework stations I,ve seen in the catalogs? > > They look like a soldering iron with a hollow heated tube for a tip and a hose for air to flow through.. > > > > > ________________________________ > From: Adam Seychell <a_seychell@...> > To: Homebrew_PCBs@yahoogroups.com > Sent: Monday, August 3, 2009 7:50:31 PM > Subject: Re: [Homebrew_PCBs] heat guns > > > Dylan Smith wrote: > > > > > > > > El 02-ago-09, a las 11:31, Stefan Trethan escribió: > > > > > Not really, for $50. What you definitely need if you want any sort of > > > consistency is electronic temperature control and adjustabe air > > > volume. > > > > I get consistent results from a $30 electric paint stripping gun. > > Plenty of air, but not too much to blow away 0603 sized parts. Works > > very well for desoldering high pin count components too (such as DIP > > 40). > > > > There are two variables that control temperature. One is distance from > the nozzle and the other is heater element power. Sure you can control > distance with cheap heat gun, but from experience its far safer to hold > the nozzle relatively close and rely on temperature control. Large TQFP > ICs should reflow shortly after the smaller 0603's begin to reflow. > Maybe your $30 gun so happens to be at just the right power level. > > > > > > > [Non-text portions of this message have been removed] >
2009-08-04 by Stefan Trethan
Go to <www.harbourfreight.com> and enter plastic welding in the search field. ST
On Tue, Aug 4, 2009 at 1:55 AM, goodsurfer2000<goodsurfer2000@yahoo.fr> wrote: > do you have picture ? to see how look like this heat gun .. ? > thank you > > > > > --- In Homebrew_PCBs@yahoogroups.com, michael tenore <wb2lcw@...> wrote: >> >> Has anyone looked at those plastic weldeing units at Harbor freight? They look >> like the heat guns on the rework stations I,ve seen in the catalogs? >> >> They look like a soldering iron with a hollow heated tube for a tip and a hose for air to flow through.. >> >> >>
2009-08-04 by Adam Seychell
michael tenore wrote: > > > Has anyone looked at those plastic weldeing units at Harbor freight? > They look > like the heat guns on the rework stations I,ve seen in the catalogs? > > They look like a soldering iron with a hollow heated tube for a tip and > a hose for air to flow through.. > I've got a plastic hot air welder and would never attempt using it for desoldering for the simple reason it will blow components way off the board. Air pressure is many times greater and over a smaller area compared to any standard heat gun I've seen. Adam
2009-08-04 by michael tenore
I would not put 60 psi air in there foe heat gun purposes !Maybe a aquaium pump for air? mike ________________________________
From: Adam Seychell <a_seychell@...>
To: Homebrew_PCBs@yahoogroups.com
Sent: Tuesday, August 4, 2009 8:24:46 PM
Subject: Re: [Homebrew_PCBs] heat guns
michael tenore wrote:
>
>
> Has anyone looked at those plastic weldeing units at Harbor freight?
> They look
> like the heat guns on the rework stations I,ve seen in the catalogs?
>
> They look like a soldering iron with a hollow heated tube for a tip and
> a hose for air to flow through..
>
I've got a plastic hot air welder and would never attempt using it for
desoldering for the simple reason it will blow components way off the
board. Air pressure is many times greater and over a smaller area
compared to any standard heat gun I've seen.
Adam
[Non-text portions of this message have been removed]