You can't use more Watts than the kva rating of the transformer or else you cook it

Wiring diagram? :)

@@spencerkarstenkeely6584 One wire connects to the work. Other connects to the brush. How hard can it be ???

you can get them on ebay if you search tig brush

It's made of carbon fiber and googling "carbon fiber brush" showed those old things for cleaning LP records. The hairs on those are shorter but I think they are folded inside so if you break it apart, you could get longer hairs that you then can put inside a small tube and press the end of the pipe. At least around here, I think I can find a record cleaning brush in a music store.

I have used salt water with regular salt water (NaCl) on stainless steel but that was not for cleaning a weld but to etch the surface. I masked letters with tape and etched with a cotton swab and a 12 V battery. If the surface is shiny from the beginning, it will turn dull by etching. Don't remember if it was plus or minus on the swab. Search for electro etching if you're interested. The acid he uses here is dilute phosphoric acid. The only thing I wonder is if it has to be AC. DC would be easy to get from a car battery or two.

It's probably the same type knifemakers use to etch their logos on knives. You use DC to electropolish your logo through a stencil, AC to darken it.

The circuit opens up and nothing does anything

That's why I was kinda unsure. I believe this uses phosphoric acid

@@HighTechLab I can find out but it should have ingredients on the bottle. It is an acid for sure.

@@frankz1125 Traditional pickling acid does this job without electricity but that's wit a mixture of nitric acid and hydrofluoric acid. That's really nasty stuff that you should neither breath in or get on your skin. I mean really really bad. This process with electricity lets you do the same trick with a quite harmless acid, dilute phosphoric acid. That's the point. And while the traditional stuff is only sold in special welding shops (don't know if they require some licence, some workplaces have banned the stuff from safety reasons), phosphoric acid is readily available, e.g. as "rust eater" which you can dilute with water.

Interesting, so is the Stick welder AC? Or can this process be done using DC

Potentially. Typically it's more of the material and design and how you finish the welds that makes it sanitary/food safe, but yeah I can talk about that

Practically any higher grade stainless steel is food grade. The welding rods used should be higher grade than the material anyway. So normal 304 will do for such a project.

@@kalleklp7291 The local food inspector, who is not a welding expert, and neither am I, said that either the gasses or filler material used can have cadmium in it which makes it toxic. I'm just an auto body guy that is used to doing stainless might welding and some oxy acetylene welding. I have a friend with a bake shop that asked me if I can make some custom cupcake tins, so this is why I ask this. I fully accept that the food inspector may not know what he is talking about, I just want to make sure.

@@mindthependulum6245 I don't know what type of gas you have. However, I can assure you none of the commonly available gasses for TIG welding contain cadmium. Cadmium is a heavy metal and highly undesirable in the food industry. Filler material i.e. rods for work on food-grade items don't contain any cadmium. All stainless steel filler rods are free from cadmium. I think what he heard about where some rods used for brazing which can contain Cd. One wouldn't use these rods for such work. Brazing and TIG welding are two different processes. So be at ease and just continue your project. :) Btw..I'm a blacksmith, machinist and professional welder for almost 30 years now. Done a lot of work for the food industry and also build my own still, which requires even more from the materials and welding methods used, as chemical compounds in gas form are involved together with higher temperatures.

Brazing Rods may contain cadmium but It would be very unusual for Stainless TIG rods any toxic additives. Stainless TIG rods are usually pure SS 309 which is food safe. Not sure how you would go about making custom Cupcake tins since the cups are usually wider at the top and narrow at the bottom. You would not be able to use SS pipe to make them. Usually Cupcake tins are made in a press.

Probably Windex. It is a weak base with ammonia.

It's actually impressively hard to find a 150 watt incandescent

You could just toss in a beefy resistor.

@@xnizonyt I used a light bulb because easy math. Essentially the light bulb is just acting like a resistor just runs a tad hotter

@@HighTechLab Hewlett Packard started in 1938 on their very first product by using a light bulb in much the same manner - it has negative resistance, i.e. more voltage = less current www.hp.com/hpinfo/abouthp/histnfacts/museum/earlyinstruments/0007/ That 200A audio oscillator was sold to Disney and began the firm's first success.