Re: O.T. Plasma cutter

first thing, you have to have the earth lead connected to the workpiece .

the torch will be either a touch type which will start the arc when youve
pressed the trigger and have the electrode touching the work , or it will be a
torch that starts an arc when the trigger is pressed but unless it is held
above the metal to be cut in the correct position the arc will go out after a
couple of seconds if you dont have the torch in correct position and start
cutting .

i presume you know you need a compressor to run the plasma cutter , with the
correct pressure set , unless its one of the lateast plasma cutters with an
internal compressor fitted .

depending on the type of cutting torch head fitted you will have to make sure
the shroud ,electrode and nozzle are in place properly but i dont think those
plasma cutters need any setting up much .

when cutting use a straight edge to run torch against if cutting straight lines
and go slowly across the plate when cutting it .

there are probably attatchments available for cutting circles also , probably
from starweld/parweld or starparts .

M0bcg wrote:
> first thing, you have to have the earth lead connected to the workpiece .
Yup.
> or it will be a torch that starts an arc when the trigger is pressed but unless it is held
> above the metal to be cut in the correct position the arc will go out after a
> couple of seconds if you dont have the torch in correct position and start
> cutting .
>

This is what I thought I had, when it said "pilot arc".


> i presume you know you need a compressor to run the plasma cutter , with the
> correct pressure set , unless its one of the lateast plasma cutters with an
> internal compressor fitted .

Yup, and it eats air at 210 lpm/5 bar. There is a pressure switch that
warns of underpressure.
>


> depending on the type of cutting torch head fitted you will have to make sure
> the shroud ,electrode and nozzle are in place properly but i dont think those
> plasma cutters need any setting up much .
>

Thanks for the tips. I'm going to nip back to work to have a play.

Steve

In article <[email protected]>, Steve Taylor
<[email protected]> writes
>I'm going to nip back to work to have a play.

C'mon, don't keep us in suspense...

Regards,

Simonm.

--
simonm|at|muircom|dot|demon|.|c|oh|dot|u|kay
SIMON MUIR, UK INDEPENDENCE PARTY, BRISTOL www.ukip.org
EUROPEANS AGAINST THE EU www.members.aol.com/eurofaq
GT250A'76 R80/RT'86 110CSW TD'88 www.kc3ltd.co.uk/profile/eurofollie/

Steve Taylor wrote:

> Thanks for the tips. I'm going to nip back to work to have a play.

That's news to me!

Lizzy

SpamTrapSeeSig wrote:
> In article <[email protected]>, Steve Taylor
> <[email protected]> writes
>
>> I'm going to nip back to work to have a play.
>
>
> C'mon, don't keep us in suspense...
>

No joy - lots of air, clicks from contactors in the box, but no $%^£&£*
plasma.

Steve

"Steve Taylor" <[email protected]> wrote in message
news:[email protected]...
>
> No joy - lots of air, clicks from contactors in the box, but no $%^£&£*
> plasma.
>
> Steve

Had this once with my Miller plasma cutter, turned out the problem was damp
air from the compressor. Fitted a small continuous-bleed type water
separator to the side of the plasma and never had any problems since. They
are really, really, really susceptible to dampness in the airstream due to
the high frequency arcing.
Badger.
B.H.Engineering,
Rover V8 engine specialists

Badger wrote:

> Had this once with my Miller plasma cutter, turned out the problem was damp
> air from the compressor. Fitted a small continuous-bleed type water
> separator to the side of the plasma and never had any problems since.

It SEEMS to be fitted with a separator :-(

>They are really, really, really susceptible to dampness in the airstream due to
> the high frequency arcing.

Just at the moemnt, I could kill for a copy of the manual.

Steve

In article <[email protected]>, Badger
<[email protected]> writes
>Had this once with my Miller plasma cutter, turned out the problem was damp
>air from the compressor. Fitted a small continuous-bleed type water
>separator to the side of the plasma and never had any problems since. They
>are really, really, really susceptible to dampness in the airstream due to
>the high frequency arcing.

It is _very_ humid ATM...


Regards,

Simonm.

--
simonm|at|muircom|dot|demon|.|c|oh|dot|u|kay
SIMON MUIR, UK INDEPENDENCE PARTY, BRISTOL www.ukip.org
EUROPEANS AGAINST THE EU www.members.aol.com/eurofaq
GT250A'76 R80/RT'86 110CSW TD'88 www.kc3ltd.co.uk/profile/eurofollie/