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Electrolytic Etching, For What A Dremel Can't Do

timothy posted more than 9 years ago | from the blood-might-do-funny-things dept.

Hardware Hacking 242

Dustin writes "A lot of people modify computer cases, often requiring them to cut intricate custom designs in sheet metal. For most, there is the Dremel tool. But sometimes, that just isn't good enough. Possibly due to an insanely complex design, or unsteady hands, a Dremel just might not cut it (pun honestly wasn't intended). JimBob, a member at OverhauledPC.com, has a much better way. Using readily available salt water and electricity, his technique is much easier than trying to cut patterns with a rotary tool."

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Coral Cache, just in case... (4, Informative)

BobPaul (710574) | more than 9 years ago | (#11535387)

I preloaded this into the Coral Cache, just in case it gets slashdotted.

Here's the Cache Link [nyud.net] if it's needed.

Re:Coral Cache, just in case... (1)

mobets (101759) | more than 9 years ago | (#11535416)

Didn't work, only the first 2 pages. I was trying the same thing :)

Re:Coral Cache, just in case... (-1, Redundant)

Proph3t (763225) | more than 9 years ago | (#11535704)

Same here, didnt work. http://www.FreeMiniMacs.com/?r=14235436

Re:Coral Cache, just in case... (1)

Belfy (769993) | more than 9 years ago | (#11535431)

Good thing.

Error: 500 Internal Server Error

Server CoralWebPrx/0.1.12 (See http://coralcdn.org/) at 169.229.50.12:8090

Slashdot Kicks In (2, Funny)

queenb**ch (446380) | more than 9 years ago | (#11535435)

Well, either they've taken their site down, or the "Slashdot Effect" has kicked in. They're gone.

Rats! I wanted to see how this works - suprise my boyfriend by etching the fenders on his 69 Mustang ;)

2 cents,

Queen B

Re:Coral Cache, just in case... (-1, Troll)

Anonymous Coward | more than 9 years ago | (#11535547)

You sir, are a cocksucking karma whore.

Re:Coral Cache, just in case... (4, Funny)

techno-vampire (666512) | more than 9 years ago | (#11535573)

Your link is currently 404 compliant.

Re:Coral Cache, just in case... (0, Redundant)

BobPaul (710574) | more than 9 years ago | (#11536246)

Your link is currently 404 compliant.
Well damn! I loaded the whole thing via the coral cache while it was still in the mysterious future... I figured Coral would get a handle on it before it went down... I guess not.

Damn. There's always mirrordot.com [mirrordot.com] I suppose...

Re:Coral Cache, just in case... (0)

Anonymous Coward | more than 9 years ago | (#11535644)

I swear to God that Slashdot is spying on me. They have posted an article on practically every page I have looked at in the past few days. I think I need to upgrade my tinfoil hat...

mirrordot has it (0)

Anonymous Coward | more than 9 years ago | (#11535676)

http://www.mirrordot.org/

Heheh, that too got slashdotted (1)

Timmy D Programmer (704067) | more than 9 years ago | (#11535725)

Oh well...

Um... (0)

Anonymous Coward | more than 9 years ago | (#11536015)

That's a very nice cached copy of their "slashdotted" page, but not exactly what I was looking for.

Don't forget... (0, Troll)

SCO$699FeeTroll (695565) | more than 9 years ago | (#11535392)

...to pay your $699 licensing fee you cock-smoking teabaggers.

Re:Don't forget... (-1, Offtopic)

Anonymous Coward | more than 9 years ago | (#11535407)

you cock-smoking teabaggers.

How can you smoke cock and teabag at the same time? Doesn't they each require something else in your mouth?

Re:Don't forget... (0, Offtopic)

GigsVT (208848) | more than 9 years ago | (#11535589)

Wouldn't the reciever be the teabagee?

In Soviet Russia . . . (-1, Offtopic)

XsynackX (775111) | more than 9 years ago | (#11535395)

A lot of people modify computer cases, often requiring them to cut intricate custom designs in sheet metal.

In Soviet Russia, computer cases modify you, cutting intricate designs in your flesh!

Re:In Soviet Russia . . . (0)

mobets (101759) | more than 9 years ago | (#11535440)

No, those are just the cheap cases.

What a dremel can do (-1, Troll)

Anonymous Coward | more than 9 years ago | (#11535400)

matter to anyone? (-1, Flamebait)

Anonymous Coward | more than 9 years ago | (#11535406)

Does this really matter to anyone? Real geeks - doubt it...

Dremels are bad web server too (2, Funny)

Anonymous Coward | more than 9 years ago | (#11535408)

Or maybe someone used one in the server network cable... no comments and down.

My guess at his method... (4, Funny)

Faust7 (314817) | more than 9 years ago | (#11535421)

Using readily available salt water and electricity, his technique is much easier than trying to cut patterns with a rotary tool.

The site is down. Therefore I will assume that he poured water over the case and shocked the shit out of it.

You could get some interesting burn patterns that way. You might even match your case.

slashdotted already. (2, Funny)

gambit3 (463693) | more than 9 years ago | (#11535422)

any of the paying Slashdotters wanna grace us with the text?

I promise you'll get lots of Karma for it! ;)

Re:slashdotted already. (4, Interesting)

elid (672471) | more than 9 years ago | (#11535677)

Let me introduce you to mirrordor [mirrordot.org] .

Re:slashdotted already. (3, Funny)

nxtr (813179) | more than 9 years ago | (#11535723)

>>Let me introduce you to mirrordor.

The Mirrordoor? Is it like the door where you see your self coming into? It only managed to cache the introduction page of the website.

Re:slashdotted already. (0)

Anonymous Coward | more than 9 years ago | (#11535805)

Mirrordor: In an alternate universe the Hobbits reign supreme, with a single ring:

"One ring to 404 them all..."

Re:slashdotted already. (0, Troll)

metlin (258108) | more than 9 years ago | (#11535855)

> Let me introduce you to mirrordor

And let me introduce you to good spelling... :-p

Re:slashdotted already. (1)

Kurayamino-X (557754) | more than 9 years ago | (#11536038)

And mirroring only the first page in a multi-page article is usefull how, exactly?

Wait a minute. (4, Funny)

Tackhead (54550) | more than 9 years ago | (#11535424)

> Electrolytic Etching, For What A Dremel Cant Do

First off, there's nothing a Dremel can't do.

But since your alternative involves electricity, water, and chemicals, we'll forgive it. (But next time, could you kindly use something more dangerous than sodium chloride? We've got reputations to uphold here, and if the case mod weren't so danged cool, we'd feel we were slipping.)

Re:Wait a minute. (4, Funny)

Ann Elk (668880) | more than 9 years ago | (#11535470)

Try it without the chloride.

Re:Wait a minute. (5, Funny)

kryogen1x (838672) | more than 9 years ago | (#11535739)

Try it without the chloride.

That, or NaCl sans sodium. Gotta love those chlorine fumes.

Re:Wait a minute. (1)

anagama (611277) | more than 9 years ago | (#11535828)

Fire is way cooler than poison gas.

Re:Wait a minute. (1)

brarrr (99867) | more than 9 years ago | (#11536073)

I encourage you to try it without the sodium... chlorine ions are, shall we say, not very good for you. Salt may dissociate in water, but it's safe there in equal quantities. Surprising that something so bad for you doesn't violate sanjimon(?)'s principle.

Re:Wait a minute. (4, Funny)

Tumbleweed (3706) | more than 9 years ago | (#11535503)

there's nothing a Dremel can't do

Welll, let's be fair, here, there _are_ some things that a Dremel can't do. But that's what duct tape and/or WD-40 are for!

Re:Wait a minute. (1)

marchaos (816643) | more than 9 years ago | (#11535642)

First off, there's nothing a Dremel can't do.

I don't know about you, but i generally don't find that my Dremel is the tool of choice for my house renovations.

Re:Wait a minute. (0)

Anonymous Coward | more than 9 years ago | (#11535794)

Certainly not for the roughing in. I did use my Dremel to clean up a spot where the crown moulding couldn't follow an out-of-true wall though.

Re:Wait a minute. (1)

MmmDee (800731) | more than 9 years ago | (#11535968)

We've got reputations to uphold here...

There's always hydrofluoric acid for etching true glass side panel insets (cover the entire glass with a thin layer of candle wax, scrape away the wax cleanly from areas you want eteched, wash away the acid carefully, melt/scrape away the remaining wax). Here's at least one site [fundy.net] with more info.

Of course all the appropriate warnings apply as to the caustic nature of acids, fumes, potential for damage to clothes, skin, etc... Oh, and don't try this on plastic/metal.

Mirrordot Link (1, Informative)

b0lt (729408) | more than 9 years ago | (#11535426)

Re:Mirrordot Link (0)

Anonymous Coward | more than 9 years ago | (#11535454)

Only page one... Mirrordot suckage...

Re:Mirrordot Link (1)

GrAfFiT (802657) | more than 9 years ago | (#11535465)

You only managed to get the first page. Thanks anyway. Someone give me a time travel machine so I can visit this f***ing website.
Main site + Coral + Mirrordot all failed... Victory !

Re:Mirrordot Link (1)

SeriousEyePanda (792822) | more than 9 years ago | (#11535475)

Hm, the link just is a copy of the first page of this story. The link to the next page points to the original website, which of course has been completely slashdotted. The mirrordot should grab the other pages and redirect the links to these other mirrordot pages... Just my two cents

Nice mirror.... N O T! (0)

Anonymous Coward | more than 9 years ago | (#11535491)

Nice mirror. You mirrored the front page, and none of the other pages.

Excellent... (5, Funny)

Gorffy (763399) | more than 9 years ago | (#11535427)

Now, instead of merely cutting myself, I can electrocute myself as well. I love case modding!

What about what a Dremel CAN do? (4, Funny)

Ghostgate (800445) | more than 9 years ago | (#11535439)

Let's see your fancy "salt water" and "electricity" do this! [powerlabs.org]

Re:What about what a Dremel CAN do? (1)

Sir_Jeff (836043) | more than 9 years ago | (#11535552)

Wow - I wonder - if you stick a record needle on it do you get the next Bee Gees hit?

The 2005 Darwin award goes to! (3, Funny)

HockeyPuck (141947) | more than 9 years ago | (#11535558)

Yeesh, you would have thought the kid would atleast have worn long sleaves and a face mask (welding mask)... They did this on Mythbusters and the fragments when into the human flesh like gel about 2inches...

Re:What about what a Dremel CAN do? (2, Funny)

chadjg (615827) | more than 9 years ago | (#11535774)

Thank God for morons with active imaginations and spare time. There is always one in every crowd that is willing to eat worms, spray stuff with hairspray and the light it, or spin CDs to destruction.

Our lives would be so much duller without them.

Re:What about what a Dremel CAN do? (0)

Anonymous Coward | more than 9 years ago | (#11535941)

Hah! The one where it goes up the wall, comes down from the ceiling, and goes back up again is classic.

The "technique" link is slow, (-1, Troll)

Anonymous Coward | more than 9 years ago | (#11535460)

google cache [google.com] .

Drilling teeth (0)

Anonymous Coward | more than 9 years ago | (#11535462)

Doesn't this "Dremel" tool look more like something you would see a dentist use?

"much easier", where's the fun in that? (3, Funny)

AC-x (735297) | more than 9 years ago | (#11535478)

What a true geek would do is build their own computer-controlled laser cutting/etching rig, a few of these [thinkgeek.com] together should cut through aluminium or mild steel no problem :)

Re:"much easier", where's the fun in that? (1)

jdray (645332) | more than 9 years ago | (#11535633)

A true geek will wait until these [versalaser.com] get to under $500 and use one of them. Until then, a Dremel works.

Re:"much easier", where's the fun in that? (1)

joew (16307) | more than 9 years ago | (#11535729)

No a true geek would build it themself with this kit.. http://www.emissiontechnologies.com/xy.htm/ [emissiontechnologies.com] granted a 50 watt laser could probably only cut tinfoil

Re:"much easier", where's the fun in that? (0)

Anonymous Coward | more than 9 years ago | (#11535981)

No, a true geek would risk death through trying to build one himself in a kit [amazing1.com] (see bottom)

Re:"much easier", where's the fun in that? (0)

Anonymous Coward | more than 9 years ago | (#11536160)

Depends on the focus of the beam... 50W in 0.1mm^2 could easily cut sheet metal.

Re:"much easier", where's the fun in that? (3, Interesting)

Anonymous Coward | more than 9 years ago | (#11535709)

Even better than wimpy lasers--a friend of mine built a CNC plasma cutter for his metal crafting business (http://texasmetalcraft.com/TMC/pictures.htm). The pics don't do it justice-he once sent me a video that really let you see the plasma head melting the 1/4" steel...and making extremely precise cuts in the process. What could be better--computers+high voltage+very high temperatures+the possibilty of really frying yourself!

Re:"much easier", where's the fun in that? (1)

totoanihilation (782326) | more than 9 years ago | (#11535713)

Oh boy, now you've done it. You're promoting the use of deadly weapons [slashdot.org] , and linking to a site selling them. The feds will be knocking at your door in five... four... three... two...

To summarize... (4, Informative)

syukton (256348) | more than 9 years ago | (#11535500)

I'll try to summarize this since I managed to read the first few pages before the horde of slashdot ate the website.

You take two plates of metal and hold them parallel (not with your hands, they're going to be electrified!) underwater. Electrify the plates and the positive ions in the water will collect at the negative terminal and the negative ions will collect at the positive terminal. By adding some salt to the water however, you can encourage a chemical reaction to happen at a given electrode. By covering the metal with paint or duct tape, you insulate it from this effect. So what they're doing is, essentially, painting around the hole they want to cut, leaving the hole itself barren, then submerging it in saltwater and electrifying it, causing the exposed metal to oxidize and be eaten away.

It's roughly the opposite of electroplating, which is the procedure which this technique is likened to in the article. Instead of trying to accumulate more on a given electrode you're trying to reduce the amount of matter present there.

Re:To summarize... (4, Informative)

Vellmont (569020) | more than 9 years ago | (#11535986)


By adding some salt to the water however, you can encourage a chemical reaction to happen at a given electrode.


No, the salt is to reduce the electrical resistance of the water and create a greater current flow. Pure water actually has a high amount of electrical resistance. Oxygen will collect at the positive electrode, and hydrogen will collect at the negative (the article author is a bit confused and thinks this is methane).

You're correct about the rest of your summary though.

Full mirror wget'ed here: (-1, Troll)

Anonymous Coward | more than 9 years ago | (#11535508)

Mirrored, ALL pages! [zoy.org] Thanks to Jim Z. for the bandwidth!

"Troll"??? WTF? (-1, Troll)

Anonymous Coward | more than 9 years ago | (#11535557)

It's a mirror of the currently dead site.

Re:Full mirror wget'ed here: (1)

Sir_Jeff (836043) | more than 9 years ago | (#11535586)

Dam it you got me! And I'm at work too.

methane gas???? (2, Informative)

Anonymous Coward | more than 9 years ago | (#11535540)

how do you produce methane from NaCL, H2O, and Fe ???? I think only H2, and O2 are emitted!!

Re:methane gas???? (1)

EmbeddedJanitor (597831) | more than 9 years ago | (#11535718)

There's carbon in steel.

Re:methane gas???? (1)

momerath2003 (606823) | more than 9 years ago | (#11535974)

The water will be electrolyzed into H2 and O2.

2H20 -> 2H2 + O2

You're not going to evolve methane (as the article says). Sheesh.

Re:methane gas???? (1)

taniwha (70410) | more than 9 years ago | (#11536027)

yup you're right - I used the slot car transformer in salt water technique to make H2 as a kid ... my mother made me stop because of the Cl2 that came off the other end (mostly disolved in the water - I'd guess he's making something like FeCl3/NaOH (in solution) - it probably turns a dirty yellow

Re:methane gas???? (0)

Anonymous Coward | more than 9 years ago | (#11536207)

Chlorine gas will come out if you use tap water that is chlorinated. Be warned. I almost offed myself as a kid, also trying to make pure hydrogen gas, so I could light it on fire like my science teacher.

One lung full of pure chlorine gas bubbling up and you can enjoy some nice permadamage from the hydrochloric acid that forms in the depths of your lungs.

But aside from the flammable pure hydrogen and oxygen, the pure chlorine gas, and the saltwater with electricity coursing through it, this does seem like a better process than a dremel.

Effects to look into (3, Funny)

Striker770S (825292) | more than 9 years ago | (#11535582)

One of my friends reminded me the other day of a time when he was making his cooling system. After a while of playing, his computer made wierd noises, and so by looking through the case window we could notice that his cooling system did not work. Basically it looked like a carwash inside his computer. I feel that the best case designs come from mistake, even though that mistake cost him his wonderful computer parts. But lego cases look cool too.

Salt + Electricity... (1)

Billy the Mountain (225541) | more than 9 years ago | (#11535599)

Isn't that how they make dioxins?

Re:Salt + Electricity... (2, Informative)

Anonymous Coward | more than 9 years ago | (#11535694)

Not directly dioxins, but it does make covalent chlorine, which often ends stabilizing as dioxins. Even if it ain't that, its still BAD (worse than not putting comments in code, Broken As Designed).

Unfortunately, I was unable to load the article - so I can't comment on the procedure involved. But if you haven't studied electrochemistry to at least a small extent to know whats going on (and I know people with B.S. in chemistry I wouldn't trust with understanding reactions in this catagory), its best you DO NOT try this. The procedure listed may be completely harmless, I can't say without having access to reading the procedure. But if you are someone (like most slashdotters) who doesn't hesitate at "improvising", stick to the dremel.

Re:Salt + Electricity... (1)

methano (519830) | more than 9 years ago | (#11536186)

Not directly dioxins, but it does make covalent chlorine, which often ends stabilizing as dioxins

Either this post is funny or you should ignore it.

Re:Salt + Electricity... (0)

Anonymous Coward | more than 9 years ago | (#11535741)

Isn't that how they make dioxins?

Yes. I read it in Neal Stephenson's Zodiac, so it must be true.

Re:Salt + Electricity... (0)

Anonymous Coward | more than 9 years ago | (#11535883)

Pass the charcoal.

Re:Salt + Electricity... (1)

vergil (153818) | more than 9 years ago | (#11536229)

Naw. Dioxin is formed when you incinerate PVC. When you're bic pen lands in the municipal trash burner, dioxin is made.

Dremel Casemod (2, Interesting)

HighBit (689339) | more than 9 years ago | (#11535600)

Kinda apropos, dremel has a Case Modding Project [dremel.com] on their website. They cut the word DREMEL into a case. Looks nifty.

Spockdot Effect (1)

ScrewMaster (602015) | more than 9 years ago | (#11535647)

Kirk: Spoooock!

Scotty: He's dead already, Jim.

how to make your case rust really really fast (0, Troll)

acousticnoise (854269) | more than 9 years ago | (#11535658)

this sounds like a kewl project for a moron?.

In next weeks slashdot how to ruin your microwave and melt some metal.

how to make a transputer from cock cheese.

illuminating your case with a smegma arc light

Re:how to make your case rust really really fast (1)

totoanihilation (782326) | more than 9 years ago | (#11535817)

In next weeks slashdot how to ruin your microwave and melt some metal.
Been there [slashdot.org] , done that.

Re:how to make your case rust really really fast (1)

FIGJAM (29275) | more than 9 years ago | (#11536063)

About your page on soundproofing, can I ask how do you obtain any business at all?

"The idea behind the site is making it as simple as possible for you the customer to analyse and order the products required for your noise problems"

Where are the products on your page? Where is the order form? There is no way to contact you at all.

"We hope that you will find this site useful..."

Honestly, do you think _anyone_ could find it useful?

Can also be done in a much simpler... (5, Informative)

Lisandro (799651) | more than 9 years ago | (#11535666)

...(and safer) way with FeCl3 (ferric clhoride) [p-m-services.co.uk] , the very same stuff used to etch circuit boards by hobbyists arround the world. Since it attacks most metals, you can do complex chemical etching with it: i've seen small plates with logos done that way - you just have to find a way to mask the design somehow. It requieres no electricity as well.

FeCl3 is cheap, relatively safe (don't eat it kids!), and easy to handle. It stains like a bitch though, and will attack most metals so be careful with spills.

Re:Can also be done in a much simpler... (1)

EmbeddedJanitor (597831) | more than 9 years ago | (#11535743)

FeCL3 does, however, get depleted with usage. Munching through a 1-2 mm steel plate will require quite a bit of FeCL3.

Anyone tried spark eroding?

Re:Can also be done in a much simpler... (1)

ejito (700826) | more than 9 years ago | (#11536022)

Yes, but you just need to etch out the border cut, not the whole design.

Re:Can also be done in a much simpler... (2, Informative)

Bootle (816136) | more than 9 years ago | (#11536007)

All Ferric Chloride does is eat copper. To make a design, you still need to mask it somehow.

Something as simple as a magic marker can be used, but it will probably look like ass. A better idea is to use a photo-resist kit. With this you spray the metal surface with a chemical that will protect it from the FeCl_3. The kicker is that light will eat away this protection. So you print your design onto an overhead transparency or something, place that atop the metal, and affix it to a window for a while.

Using these kits is a great way to make high quality designs, and it easy to transfer the design to the metal surface. The drawback is a limit in size and perhaps cost

Computer chip manufacturors use essentially the same technique, except their designs are so small that the wavelength of visible light is too wide! So they moved towards UV and now are starting to have a lot of problems trying to shrink farther.

I went to radio shack's site to look up some info on PCB etching kits and, seriously, far too many of the search hits were for HP computers and photo-printers. So sad...

Re:Can also be done in a much simpler... (2, Informative)

Lisandro (799651) | more than 9 years ago | (#11536092)

The two simplest ways i've found to transfer designs for FeCL3 etching were:

1) Press-n-peel blue [southcom.com.au] , which is a sheet of material that will stick to a surface only where it's printed. It's hard for me to find it where i live, so what i use is...

2) Laser printer and satin ("photo") paper. Laser printer toner is 100% waterproof and melts when heated; you print you design, mirrored, onto a satin paper sheet, then iron it over the metal (previously cleaned and degreased with alcohol), and carefully peel it, soaking it wet if needed. If done right the toner sticks to the metal, making a perfect etch mask.
I do this all the time and it works great; just google for more info on the procedure.

Both work great for PCBs. If you need to etch a piece of metal, you do the same and paint the sides of your metal block (a waterproof marker works just fine). You clean it well with water to remove the etchant and isopropyl alcohol to remove toner/ink, and voila!

Re:Can also be done in a much simpler... (0)

Anonymous Coward | more than 9 years ago | (#11536011)

Bah! I contend that this method is plenty safe! 12volts DC isn't going to arc across the room and kill you. You'd have to work to get anywhere close to a shock out of this. Like, stabbing yourself with electrodes, licking electrodes and the like.

FeCl3 is waaaay more dangerous than a little salt and electricity. Sure an AT power supply has the capacity to push about 15 amps at 12 volts, but car batteries can push several hundred... and they're pretty safe (don't short the terminals with a spanner!).

Easy design masking (2, Informative)

Weaselmancer (533834) | more than 9 years ago | (#11536043)

...you just have to find a way to mask the design somehow

Easily done. Head to Techniks [techniks.com] or some other similar place and get some Press 'n Peel PCB transfer film.

Draw what you want to etch as a negative and then iron it onto your metal. Dip the whole thing in the acid bath and wait a bit. Steel wool to clean off the resist and that should do it.

If you're really cheap, toner is a decent resist. [fullnet.com] No different than making a homebrew PCB.

Re:Easy design masking (1)

codepunk (167897) | more than 9 years ago | (#11536076)

Even easier, you print it on a laser printer and iron it on the surface you want to etch...

Re:Can also be done in a much simpler... (3, Interesting)

Dan East (318230) | more than 9 years ago | (#11536290)

I've been using Staples Picture Paper to transfer the ink to PCBs (you have to print your mask with a laser printer - inkjet won't work). That particular brand of paper works extremely well, as determined by a fellow who tested dozens of types of glossy photo-quality printer paper to see what transferred toner the best.

I don't see why this wouldn't work on cases. You use an iron to transfer the toner from the paper to the surface to be etched. Extremely narrow traces can be obtained ("MUCH less than 0.01 inches") with this method, so I'm sure it would give good results for case mods.

This website has the detailed instructions:
http://www.fullnet.com/u/tomg/gooteepc.htm [fullnet.com]

Dan East

I used to do that with nitric acid (3, Informative)

museumpeace (735109) | more than 9 years ago | (#11535689)

Works on brass too. but its harder to get ahold of that stuff nowadays. Drano will probably work faster on Aluminum and not require electricity but you got to play with the concentrations or the process will heat up so fast it will melt your resist.

Bad guide (3, Insightful)

s0rbix (629316) | more than 9 years ago | (#11535734)

This is a terrible guide. Several times he says "make sure you know what you're doing" but offers no help or explanation. It is poorly worded and offers little guidance. The pictures do not help at all, either. Does anyone know of a better guide for electrolytic etching?

Cool! New way for me to screw up a case! (1)

Digital Pizza (855175) | more than 9 years ago | (#11535786)

Too bad the site's down; For now I guess I'll be stuck using my Dremel to ruin things.

Uh... (0)

Anonymous Coward | more than 9 years ago | (#11535835)

Apparently not OverhauledServer.com.

My favorite part (0)

Anonymous Coward | more than 9 years ago | (#11535971)

The bigger your container, the more salt you'll need. The amount of salt is not an exact science, I used a 15 gallon fish tank and it worked with anywhere from a few tablespoons of salt to an entire 26 ounce canister of salt. Ideally you should have about 40% or so saturation.

Funny, I thought basic chemistry was an exact science.

Slashdotted (1)

UlfGabe (846629) | more than 9 years ago | (#11536057)

RECORD /. @ Hits: 493

taken from page 3.

Man, he needs a new server.

colloquialism (1)

prurientknave (820507) | more than 9 years ago | (#11536126)

instead of gibbering about with colloquialsms that amount to duck speak, the editors could have used a single word 'inadequate' instead of 'make the cut(pun honestly not intended'. Go ahead mod me offtopic Words either have meaning or they don't.

Electro Chemical Maching (0)

Anonymous Coward | more than 9 years ago | (#11536128)

This technology is nothing new. My father built systems to do R&D and production using Electro Chemical Machining. This process is half science and half art.

Items used every day may have under gone this process, turbine fan blades, air bag explosive chambers, hard drive motors (meow), test sabot rounds for tanks. This is a fantastic process that is underrated by other parts of the machining industry.

Acid? (1)

Quixote (154172) | more than 9 years ago | (#11536144)

Instead of all of this electricity, etc. why not use plain old acid? (Like from a car battery or something). Maybe even H2SO4 or HCl from a hobby store.

Tape, knife, and bead-blaster (2, Insightful)

RiffRafff (234408) | more than 9 years ago | (#11536204)

Cover the "canvas" with masking tape. Draw your design. Cut out your design with a sharp X-Acto blade. Etch the exposed design with a bead-blaster (like a sand-blaster, but uses smaller, more uniform glass beads, and doesn't eat away as much, as fast).

Been doing this for years.

Idea for timothy... (-1, Troll)

Anonymous Coward | more than 9 years ago | (#11536239)

Dremel yourself a gay lover who won't run away from you and your aspirations for your gay porn career!

A link dug from the hurlage (2, Informative)

sl4shd0rk (755837) | more than 9 years ago | (#11536245)

I managed to grab a link out of the page from mirrordot before it went tits-up again. This is the link the guy got part of his idea from.

http://gravert.club.fr/galvetch/contfram.htm
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