I have an old SIP autoplus 171 turbo. I used to weld a lot 20 years ago when I was an HGV fitter and I was quite a good welder with bigger more able machines. My SIP isn't really in this league but I would like to make a few modifications to try to improve things. I use co2 pub gas for economy so I don't expect perfect results.
I had a little trouble with wire speed disconecting so I am replacing the bolt that clamps the three tranformer wires and the 24v feed wire together with brass nut and bolt and washers. I am also replacing the 240v mains flex with a 2.5mm 5 metre one as it is too short. I bought the welder with no Dinse connector on the earth lead. I wasn't happy with the way the previous owner had connected the earth lead to the transformer so I have used a brass Durite clamp connector for starter cable to connect straight onto the tranformer lead wire. It has 4 clamp screws and an 80mm hole. So i passed the transformer wire and the earth wire all the way through and used all four clamp screws on both wires.I have also replaced the Euro torch with a new full size high amp torch.
I am now thinking about a seperate power supply for the wire speed and wondering if I need a bigger earthing cable. Are the benefits really significant ? My earthing cable does look quite small but it has never got hot. The conductor wires measure about 5mm in diameter.
Has anyone done the mods to this specific welder and how much difference did it make? Also a schematic of the pcb would be usefull.
I had a little trouble with wire speed disconecting so I am replacing the bolt that clamps the three tranformer wires and the 24v feed wire together with brass nut and bolt and washers. I am also replacing the 240v mains flex with a 2.5mm 5 metre one as it is too short. I bought the welder with no Dinse connector on the earth lead. I wasn't happy with the way the previous owner had connected the earth lead to the transformer so I have used a brass Durite clamp connector for starter cable to connect straight onto the tranformer lead wire. It has 4 clamp screws and an 80mm hole. So i passed the transformer wire and the earth wire all the way through and used all four clamp screws on both wires.I have also replaced the Euro torch with a new full size high amp torch.
I am now thinking about a seperate power supply for the wire speed and wondering if I need a bigger earthing cable. Are the benefits really significant ? My earthing cable does look quite small but it has never got hot. The conductor wires measure about 5mm in diameter.
Has anyone done the mods to this specific welder and how much difference did it make? Also a schematic of the pcb would be usefull.