Originally Posted by
geezer
After watching this video many times, I came to the following conclusions.
The machine and the plasma torch are not part of the issue…I doubt if the CNC machine moves in such a silky manner or the torch has a magical flame to account for this fine cut.
Is the machine or the torch superior to what you and I have…I doubt it….rather what we see here is a superior setup guy….a fellow who knows what he is doing…
When I first saw the height of the pierce cut,,,I thought it was too high,,,well,,,it works and probably helps keep the nozzle clean from splash back….
Notice that the “lead in” is little longer than you would expect…this longer lead in gives the torch and flame a chance to settle down and stabilize prior to starting to cut the piece…torch height and air pressure are now consistent for the cut…
Speed,air pressure and amps are always variable,,,however they can adjusted through trial cuts…
What I really learned from this video was the importance of having the water in the water table high enough to contact the plate…..the advantage of this …is to cool the plate and prevent residual heat from building up and creating a widening of the cut and resultant Dross,,,,water in a water table is just not for controlling sparks….
Like I said before…the operator is very skilled and knows his machine…that’s why it looks so good..
At least that is my take on the whole affair,,,hope this helps someone…
Some of those lies people tell about me, are true
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