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How to add permanent volume markings to a kettle (illustrated)

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What voltage did you use? What was your salt to vinegar ratio? The commercial kits I've seen for etching use 4.5 volts for steel and 1.5 volts for silver so apparently specific voltage plays a role. They also say to thoroughly clean surface with acetone. Mine was a little splotchy too but I thought it gave it character.


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I used a 9V battery. When I started to etch the keggle, the liquid kept turning yellow, and it never seemed to get a very strong etch.
 
I used a 9V battery. When I started to etch the keggle, the liquid kept turning yellow, and it never seemed to get a very strong etch.


How close is your bare wire? I found mine worked best if my bare wire wrapped around the q tip was touching the metal.


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You guys are great! The feedback has been amazing. I really enjoy how many of you have shared your etchings!

Because you've been so cool, I thought I would follow up with a brew day shot of a Black IPA with the etchings.

aPMFzD1.jpg
 
I wasn't getting good results with my battery so I went the charger route as well. Yeah you hook it similar to the battery, positive to the kettle and negative to the Q-tip. I had a computer fan laying around that I'm going to use to make another stir plate so I hooked up the wires to figure out which wires from the charger were positive and negative. If the fan runs it's correct if not switch them. There might be an easier way to figure it out, but I'm no expert. I didn't get any pictures yet but it came out pretty good.
 
^ yup, what he said. Negative to the Q-tip, Positive to the kettle. On my charger the negative side had dashes along the cord.


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I found another way to transfer your images to your kettle. I had a hard time finding stencils but had tons of number stickers.
What I did was place the sticker where I wanted it and then I painted nail polish over the top of the sticker and beyond the sticker.
I then peeled the sticker off of the pot and was left with a "stencil" number. Tape off around the nail polish and then etch as the OP has suggested.
Then all you have to do is take nail polish remover to the area and you should be set.

Nice way to stencil in if you have stickers already handy or possibly a logo!!

Edit: Also, if you are leery about doing this on your kettle first, you can do a trial run on your lid (if you have one)
 
Direct current (DC) is a "safe" type of electric. You can touch either side of a DC circuit and not be harmed. The only time you can be harmed (in high voltage instances) by a DC current is if you complete the circuit (holding both wires at the same time). Since this project requires a really low voltage (under 24V), you'll be fine.

But you'd probably feel it if you licked it like a 9v battery! :mug:


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Primary: DFH 90 Clone
Primary: Empty
 
Direct current (DC) is a "safe" type of electric. You can touch either side of a DC circuit and not be harmed. The only time you can be harmed (in high voltage instances) by a DC current is if you complete the circuit (holding both wires at the same time). Since this project requires a really low voltage (under 24V), you'll be fine.

LOL. It's only the "safe" type because the most common uses are low voltage and low current (ie single cell batteries or chargers). High Voltage DC can do quite some damage. Anything under 60VDC has much less safety restrictions than 60+VDC. The Class B Power Electronics area at my work requires only cotton clothing, no jewlery, and a special lab coat just to enter the area. Granted most of the stuff in there is 700+VDC with lots of current behind it (Think generators/motors for large tractors and machinery like http://www.betterroads.com/files/2013/12/JohnDeere.jpg).
 
Yup you're right. I work for the utility company, everything we wear must be a minimum 2 HRC arc rating. But 95% of the time I work with A/C which, IMO, is a lot more dangerous to work with being that everything you touch could be charged or could ground you into circuit. In other words, a typical house outlet. You jam a single knife into the socket, your getting a hell of a jolt. If it were D/C, you'd have to jam a knife into both sides to get zapped. That's where I get the reference "safe" from.


____________________________
Primary: DFH 90 Clone
Primary: Empty
 
This is exactly what I've been looking to do in my keg conversions!!! Thanks for the post and all of the helpful posts from everyone else!!

Cheers!!


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Electricity needs to be respected. 50,000 vac static shock zaps but very little amperage involved. A walk across a carpet and touching a doorknob will let you know that.

28 volts DC with some amperage behind it will jolt you hard, knock you on your butt even.

A 9 vdc low amperage little battery and your body's resistance and you won't feel a thing. Unless you put it on something sensitive and wet, like your tongue.

This etching method described by the OP is not going to hurt you. Just don't try and use a car battery charger. Low voltage. Lots of amps. Current kills.
 
Hook up the POSITIVE lead directly to your kettle.
Attach the NEGATIVE lead directly to a Q-tip, making sure the wires will be touching the vinegar solution.

When you say to hook the positive directly to the kettle, am I taking the wire and wrapping it around a handle to serve this purpose? I ask because in the picture, it doesn't look like the wires are separated and both wires are wrapped around the qtip. Thanks.
 
You can wrap the positive wire around a handle or tape it to the side of the kettle, whatever as long as positive is in contact with some part of the kettle that you're not etching.
 
This etching method described by the OP is not going to hurt you. Just don't try and use a car battery charger. Low voltage. Lots of amps. Current kills.


Not really true it takes a combination of voltage and amps to kill you. Actually a car battery charger works great and is what I used to do my etching. The charger all ready has the alligator clips and made it easy to connect. I used it set on the 6 amp setting and worked great. Your body is a poor conductor at low voltage AC or DC. You can grab both posts of a battery capable of producing a 1000 amps of current and not get electrocuted. Just be careful not to short the battery with a better conductor or you could get burned and obviously do not put your tongue on it :)


MaxOut Brewstationle
 
Electricity is a lazy creature. It takes the path of least resistance. It u become that path, ot will hit u. MaxOut, sir, a car battery has the "potential" to kill u. Thats all electricity is anyway is "potential energy". Given the right condition your heart can be stopped@ .75mA. Now, it is unlikely and using a battery charger u do have a breaker in line. Take a meter and check the resistance of your body vs the voltage and amperage of the battery and you should come up with the actual numbers. Look up ohms law for ur answer.

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Electricity is a lazy creature. It takes the path of least resistance. It u become that path, ot will hit u. MaxOut, sir, a car battery has the "potential" to kill u. Thats all electricity is anyway is "potential energy". Given the right condition your heart can be stopped@ .75mA. Now, it is unlikely and using a battery charger u do have a breaker in line. Take a meter and check the resistance of your body vs the voltage and amperage of the battery and you should come up with the actual numbers. Look up ohms law for ur answer.

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I think your decimal point is in the wrong place.
 
Your heart can be stopped with a hard tackle to the chest in touch football gone wrong. Yes, electricity is dangerous, be safe. Can we move on now without all the heart stoppage discussions?
 
I'm having issues trying to get this to work and the only thing I can think of is that I am using sea salt instead of plain old salt, would that make a difference? I didn't have any spare power cords either so I just striped an extra extension cord and used those wires, that would work for wiring right?
 
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