User Profile

[MasterKwan]

Hating people who don't believe exactly the same thing you do is one of the cancers eating at the heart of America. We should be able to discuss things and agree to disagree without name calling or rancor. I don't hate the people who voted for Trump for example even though I don't agree with them. I'm...

[MasterKwan]

it's great to love your country but you have to temper it with healthy skepticism. The last 20 years of pointless wars on brown people and intervention in the middle east, that the talking heads tell us is essential for some reason, have left me pretty cold. Wife and I, my brothers and sister and...

[MasterKwan]

I'm not clear what failed. Is it not changing the power or not starting the arc? If it's a bad batch of pots, that might explain it. Maybe the outsourced it to an even cheaper supplier?

[MasterKwan]

My experience with a fairly expensive Lincoln Mig welder that could also Tig was that while the Tig worked, it wasn't that great. No HF start. The current levels seemed to be stepped instead of a smooth progression when using the pedal. It's a great mig welder, does everything I want including pulse...

[MasterKwan]

My thought too. China quality is getting better and US quality worse....

[MasterKwan]

That's the one in my Amazon link. It works fine for me but it's far from industrial quality....

[MasterKwan]

Wow, $140. There can't be more than $15 in parts in that thing.


https://www.amazon.com/gp/product/B07XVMG5G1/

I've been pretty happy with this. I will say construction quality is lacking. It's doesn't use a dial. It's pressure controlled with 4 different positions. I'm...

[MasterKwan]

I find myself puzzling over whether it's better to buy American anymore too. If you're going to charge a premium but give China level quality, I might as well buy Chinese directly for 1/3rd the cost.

I wonder how hard it would be to repair these units?...

[MasterKwan]

If you have a current clamp to measure current, you might check what's actually coming out. The schematic I'm looking at shows the transformer feeding 6 SCR's which should be controlled by the controller board to manage current output. There's a current sensor coil around the output which gives the...

[MasterKwan]

Yeah, as a tech, "check the power supply" is always the first thing I do....