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Requirements for training

Groups of 5 or less

18+ only

Clothing :-

Preferably workshop overalls and safety boots but if not :-
Stout leather shoes that you don’t mind getting messed up, no trainers, no open-toed shoes
Jeans or similar heavy cotton trousers, must completely cover legs, no holes
Cotton shirt, long-sleeved preferable but not essential
All clothing is going to get dirty, dusty and possibly burn marks
For fire-safety reasons - NO SYNTHETIC FABRICS

If you have any metal you’d like to cut, or scrap to practice on, please bring it (Steel only, not stainless)



Who I am
Why I’m teaching this
Who are you and what are your levels of experience?


Fire precautions
 Clearing area of flammables
 Getting fire extinguishers handy
  Everyone knows how to use one?
Proper safety Clothing
 Overalls (sparks, UV)
 Boots (sparks, dropping things)
 Gloves (sparks, hot metal parts)
 Ear protection (not using and why not)
UV safety
 Goggles/Mask (UV, flying sparks, grit, dust)
Dust safety
 Dust mask (Dust, metal fume headaches)
 Good ventilation (Heat, NOx, CO)
 Why are we restricted to carbon steels? (Cr2O3, Al2O3, NiO, CuO etc.)
 Is there interest in cutting other materials? (Will organize if wanted)
Electrical safety
 Avoiding wet areas (but mention industrial water-damped cutting)
 No Extension leads!


What is plasma, why does it cut
What can be cut
Inspecting compressor and cut-50
Fitting consumables (examine, check, what constitutes too much wear, show examples)
Connecting up the equipment (air cleanliness & water)
Torch safety (airflow/electrical)

Starting up

Setting pressure (3-6 bar)
Setting current (10A+5A/mm)


Basic how-to
 Preparing material         (consider contaminants, good ground contact, consider what’s                                         underneath and on the underside)
 Torch perpendicular and slow even movement
 OK to brace on the material
How to recognise problems
 Demo on thin sheet
 Practice on thin sheet
 Guides (metal and wood, the differences)
Proper settings and how to choose them
Cutting on thicker materials
 Cutting speed/spark angle (15-20 deg)
 Demo & Practice
Other topics
 Piercing into enclosed spaces