Homebrew PCBs

A friend of mine has got one of those Steinel LCD guns, I 
should of tried it before spending my money on that old and 
used Leister hot air welder. The air pressure from a hot air 
welder is a lot higher than a heat gun, so I'm not sure how 
well it will work, but if you had successfully built your 
tanks from it then I cannot see any major problem with using 
a general purpose hot air gun. All the reducing nozzles for 
hot air guns also have a side vent that can get annoying. 
The side vent is probably there to prevent too much 
restriction of air flow.

Adam

Markus Zingg wrote:

> Seinel Modell HL2305 LCD
> 
> I really can highly recomend this one. It's not even that expensive.
> 
> http://www.steinel.de/englisch/index.html 
> 
> there click on "Products for DIY ers" then on "Hot Air Guns" it's the
> first one on the left.
> 
> Markus 
> 
> 
>>Markus,
>>
>>Which hot air gun do you use?
>>
>>Simon
>>
>>On 5 Nov 2003, at 07:40, markuszingg wrote:
>>
>>
>>>--- In Homebrew_PCBs@yahoogroups.com, Adam Seychell
>>><adam_seychell@y...> wrote:
>>>
>>>>This weekend I played around with my hot air welder again, trying
>>>>to get better  practice. I bought three types or welding rod, and
>>>>small and large triangle type and a 3 mm round, each type comes
>>>>in 50 rods per pack. I found triangle is the best. For 4.5mm
>>>>sheet I use the larger triangle, for 3 mm sheet I use the small
>>>>triangle rods. Practice on lots of scrap pieces and then try and
>>>>break the weld when cooled. A *really* good weld will not break
>>>>at the weld, but rather the sheet its self will break. The trick
>>>>is to get the right temperature setting and nozzle distance from
>>>>the work piece. There is a fine line between burning the plastic
>>>>and not heating it enough to properly fuse. If the temperature is
>>>>too low then it takes too long to melt the plastic and so too
>>>>much heat transfers to the bulk of the material, which makes
>>>>everything deform and then you cannot push hard of the rod. If
>>>>the heat is too hot then it very easy to burns the plastic which
>>>>contaminates it with carbon and produces a weak weld.
>>>>
>>>>Adam
>>>
>>>Hi Adam
>>>
>>>The trick that I use is the hot air welding gun itself. It's
>>>temperature is automatically controlled and it is having a digital
>>>display showing the temperature which also can be used to set the
>>>temperature requested. It then takes the gun probably 10 seconds or
>>>so to reach a new temeparature level and it then stays there. This
>>>really helps a lot in getting consistent good results.
>>>
>>>Markus
>>>
>>>
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>>
>>Simon Whitehead
>>s.whitehead@...
>>
>>
>>
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