how to finish my etching machine

J.McDonald Knives

J.McDonald Knives

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Jan 28, 2007
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ive put together an etching machine using a Micronta variable dc power supply and attached wires with alligator clips to it. i just need to find the rest of the stuff to make it. anyone know where i can find it? do you think hobby lobby would have what i need?
 
Hey Jacob, I just used a 12 volt power supply and two alligator clips, a Q-tip with a little salt and vinegar mixed together and it works fine. Are you talking logo etching or something else?
 
yup all you need, although some one mentioned using a bridge rectifier. I don't know how this would make a difference.
 
Hey, didn't you just toss a computer? The power supply makes a dandy etcher. Just use your voltmeter to find the 12V leg......even the 5 V leg works..
 
I didn't use a rectifier, is that so it doesn't wreck the power supply? I have about a jillion of the things and they're always about 25 cents at garage sales so I don't even worry about ruining them.
 
some one mentioned using a bridge rectifier
Click to expand...

If you are starting with a DC power supply, there is no need for an additional bridge rectifier.

A bridge rectifier is comprised of 4 diodes. It will convert AC current into rough DC.

It sounds as if you are using a plug pack. Simple, cheap, effective. Available at the Salvation Army store, Goodwill
garage sales..

Steve
 
thanks guys. whats the acid recipe? also is that just as good as the FeCL? looks like i need to go pick up some more qtips, vinegar, and salt. ill take a pic of my etcher tomorrow.
 
Lets see, You've got:
Forge, Grinder, Drill Press, Knife Vise, Work Vise, Anvil, Tongs,Hammers, Files, Steel, Etcher, Acid, CAD knife designs, Mom's Computer,Grandpa's Tools, IG's HT relish,....what have I forgot....?????
Oh, Yeah......KNIVES. I guess you should make some of those,too.
Stacy
 
bladsmth said:
Lets see, You've got:
Forge, Grinder, Drill Press, Knife Vise, Work Vise, Anvil, Tongs,Hammers, Files, Steel, Etcher, Acid, CAD knife designs, Mom's Computer,Grandpa's Tools, IG's HT relish,....what have I forgot....?????
Oh, Yeah......KNIVES. I guess you should make some of those,too.
Stacy
Click to expand...

Stacy, he is sneaking up on the knife making. HEHEHEHEHEHEHE!!!!
 
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