Homebrew PCBs

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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