the side vent is really annoying..
i had many times nearly charring things with it.
BUT it is my fault:
From steinel supplies there is a heat shrink tubing nozzle.
this is the 9mm reduction with a small U shaped sheet metal deflector in
the front.
this deflector is obviously used to aid in shrinking the tube uniformly.
the deflector is just plugged on the roduction nozzle, you can easily pull
it off.
The result is then the nice 9mm nozzle without those silly vents.
I checked also if it is a problem to operate the gun without the vents:
the package for the shrinking nozzle (without vents) says "only for heat
guns with
electronic temperature control circuit". the vented nozzle is good for all
guns.
obviously the vents are only to keep cheap guns from overheating the
filament.
The vents are only a hazard and big waste of energy if you own a reasonable
heat gun.
On my nozzle the vents are only stamped out and bent inwards. but the
stainless material
is so strong i couldn't bend it back. if i find the time with a big vice, a
ronund iron piece and
a hammer i will maybe be able to close them.
So if you really have a heat gun with control circuit (check by restricting
the flow and monitoring
the current it draws for example) it is really a good idea to close the
holes/ get a nozzle without it.
I can also really recommend the steinel LCD, expensive but worth much
more...
st
On Wed, 05 Nov 2003 20:48:24 +1100, Adam Seychell
<
adam_seychell@...> wrote:
> 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
>