kdog
10 kW
Vex
I'm using a ~5000w ups transformer which I rewound. It puts out about 6v and a truckload of amps ( ~1200 as a guesstimate)
The switching mech is a 30amp SSR controlled by a 555tiner circuit. Single pulse, don't know exact pulse lengths sorry but it is in the order of 40-60 ms I'd say. If I go too short I get nothing as the SSR opens and closes to quick for the AC cycle. The pulse curve is different to a CD welder so it's hard to compare.
I use pure copper electrodes. I just use solid core wire about 1.5mm diam. These are clamped in copper welding collets so as about 20mm sticks out.
I started off using a MOT but upgraded to this UPS transformer I got cheap. It's way better than the mot. But not as strong as a DN10.
I don't have the voltage to drive tungsten electrodes. They won't weld sheet for me and stick so hard I destroy whatever it is trying to get them off (think angle grinder)
Hope that helps.
K
I'm using a ~5000w ups transformer which I rewound. It puts out about 6v and a truckload of amps ( ~1200 as a guesstimate)
The switching mech is a 30amp SSR controlled by a 555tiner circuit. Single pulse, don't know exact pulse lengths sorry but it is in the order of 40-60 ms I'd say. If I go too short I get nothing as the SSR opens and closes to quick for the AC cycle. The pulse curve is different to a CD welder so it's hard to compare.
I use pure copper electrodes. I just use solid core wire about 1.5mm diam. These are clamped in copper welding collets so as about 20mm sticks out.
I started off using a MOT but upgraded to this UPS transformer I got cheap. It's way better than the mot. But not as strong as a DN10.
I don't have the voltage to drive tungsten electrodes. They won't weld sheet for me and stick so hard I destroy whatever it is trying to get them off (think angle grinder)
Hope that helps.
K