After some good advice from members on here and reading through some threads i decided to get a tec arc 166i inverter.I tried it out for the first time today with different sized rods and different amps.first off i practiced striking an arc then i tried to make some lines,the first few were terrible and i managed to blow a big hole through the metal.after i adjusted the amps and moved the rod a bit quicker they got better,not very good but not bad for a first attempt.I have included some pictures any advice or criticism would be good.Also i found the lines were slightly neater if i went around in small circles.