......................................................................................................................................................
"What's in the box?"
"Pain." He felt increased tingling in his hand, pressed his lips tightly together. How could this be a test? he wondered. The tingling became an itch... The itch became the faintest burning... It mounted slowly: heat upon heat upon heat... . The burning! The burning! He thought he could feel skin curling black on that agonized hand, the flesh crisping and dropping away until only charred bones remained.
This excerpt from Dune exactly describes the feeling of getting a tattoo burned into skin using a laser cutter; however, this is just the feeling. When sight, smell, and sound are added, the process turns out to be quite an experience.
The sound by itself (meaning no body parts in the cutter), is probably the easiest thing to deal with. It is just the normal whine of gears, belts and cooling fans. When that sound is mixed in with the sensation of burning flesh, it turns the laser cutter from a simple machine shop tool to a futuristic torture device.
The sight is not too bad, just a light tracing its way back and fourth across the body. As long as you don't think about the fact that the small wisp of smoke trailing the light, is actually vaporized skin, everything will be fine.
The smell is bad. It does not travel far, but when you catch a whiff of the burnt flesh stench, it is quite nauseating. The thought that you have just inhaled some of those vaporized skin flakes, and they have settled on the bottom of your lungs, is the worst.
I am leaving a disclaimer out of this, because any person with access to a laser cutter who is dumb enough to try this, deserves what they get.
"What's in the box?"
"Pain." He felt increased tingling in his hand, pressed his lips tightly together. How could this be a test? he wondered. The tingling became an itch... The itch became the faintest burning... It mounted slowly: heat upon heat upon heat... . The burning! The burning! He thought he could feel skin curling black on that agonized hand, the flesh crisping and dropping away until only charred bones remained.
This excerpt from Dune exactly describes the feeling of getting a tattoo burned into skin using a laser cutter; however, this is just the feeling. When sight, smell, and sound are added, the process turns out to be quite an experience.
The sound by itself (meaning no body parts in the cutter), is probably the easiest thing to deal with. It is just the normal whine of gears, belts and cooling fans. When that sound is mixed in with the sensation of burning flesh, it turns the laser cutter from a simple machine shop tool to a futuristic torture device.
The sight is not too bad, just a light tracing its way back and fourth across the body. As long as you don't think about the fact that the small wisp of smoke trailing the light, is actually vaporized skin, everything will be fine.
The smell is bad. It does not travel far, but when you catch a whiff of the burnt flesh stench, it is quite nauseating. The thought that you have just inhaled some of those vaporized skin flakes, and they have settled on the bottom of your lungs, is the worst.
I am leaving a disclaimer out of this, because any person with access to a laser cutter who is dumb enough to try this, deserves what they get.
Step 2: Circumvent the safety
Our Epilog has a safety feature that will turn off the laser whenever the lid is opened. The lid contains magnets that activate a hall effect sensor inside the machine. To get around this, I taped a magnetic rubix cube die over the sensor.
SAFETY AVOIDED!
SAFETY AVOIDED!
Step 3: Find your pain tolerance
Test your pain tolerance using different settings on the laser cutter.
The jolly roger wingdings tattoo below was done using the highest power setting, and around 70% speed. While the pain was tolerable, it burned so deep that after a gentle rubbing the skin completely peeled off.
EXTREME EXFOLIATION!
The final settings I used were 90% power and 90% speed.
Strong enough to burn, but quick, so that it does not penetrate deep enough for the skin to instantly peel away afterward.
The jolly roger wingdings tattoo below was done using the highest power setting, and around 70% speed. While the pain was tolerable, it burned so deep that after a gentle rubbing the skin completely peeled off.
EXTREME EXFOLIATION!
The final settings I used were 90% power and 90% speed.
Strong enough to burn, but quick, so that it does not penetrate deep enough for the skin to instantly peel away afterward.
Step 4: Get etching!
Choose your design.
Keep in mind that simple outline designs (like the robot and smiley faces) will hurt much less than the solid designs (pacman and space invader). If you can not tolerate the pain, choose a simple line drawing design.
After choosing your design, lay out some painters tape on the bed of the machine, and etch it. This will give you the exact location of the etch, and give you the opportunity to position your body part (hand, arm, foot, etc.) correctly. It will also let you know the duration of the etch, and how long you can expect to endure the pain.
Place your body part in the machine and set the focal point to the skin height. Lasers need a pretty exact focus, so you probably have a window of about +/- one centimeter. Outside of this range and the laser will not be intense enough to burn the skin.
ETCH!
Show off your cool burnt skin tattoos to random people and watch them recoil in horror and disgust.
Keep in mind that simple outline designs (like the robot and smiley faces) will hurt much less than the solid designs (pacman and space invader). If you can not tolerate the pain, choose a simple line drawing design.
After choosing your design, lay out some painters tape on the bed of the machine, and etch it. This will give you the exact location of the etch, and give you the opportunity to position your body part (hand, arm, foot, etc.) correctly. It will also let you know the duration of the etch, and how long you can expect to endure the pain.
Place your body part in the machine and set the focal point to the skin height. Lasers need a pretty exact focus, so you probably have a window of about +/- one centimeter. Outside of this range and the laser will not be intense enough to burn the skin.
ETCH!
Show off your cool burnt skin tattoos to random people and watch them recoil in horror and disgust.
Step 5: Soothe that burning sensation...
... with a bit of aloe.
I noticed that creams, lotions, or aloe help soothe the burn, but kill the contrast.
Make your choice.
I noticed that creams, lotions, or aloe help soothe the burn, but kill the contrast.
Make your choice.
Step 6: Safety!
I have a failed space invader attempt on my left arm.
I stoopidly forgot that the laser beam was completely exposed on the left side before it hit the final mirror.
Shortly after the space invader etch started, I noticed a lot of smoke. This smoke was not coming from the etch, but from the left side of the cutter, where the upper part of my left arm was resting. When I looked over, I saw that my shirt was smoldering.
I was so focused on keeping my forearm in place (as to not ruin the tattoo), I did not notice that the laser was no longer etching it, but rather cutting a gash into my upper left arm.
Needless to say, I only etched my right arm from that point on.
I stoopidly forgot that the laser beam was completely exposed on the left side before it hit the final mirror.
Shortly after the space invader etch started, I noticed a lot of smoke. This smoke was not coming from the etch, but from the left side of the cutter, where the upper part of my left arm was resting. When I looked over, I saw that my shirt was smoldering.
I was so focused on keeping my forearm in place (as to not ruin the tattoo), I did not notice that the laser was no longer etching it, but rather cutting a gash into my upper left arm.
Needless to say, I only etched my right arm from that point on.
![[Thumb]nail portraits - (laser etch your fingernails)](http://cdn.instructables.com/FWZ/MZRI/FIJ3YE4D/FWZMZRIFIJ3YE4D.SQUARE.jpg)
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Sorry.
Being ignorant does not mean others are too, these guys may very well know exactly what they are doing - though I kind of doubt it, so in a sense I agree with you about the being idiots part, although i'd probably use the words "a bit stupid".
In any case it's not your place to tell people what they should or should not do, although I share your concern about doing potentially dangerous things without knowing what you are getting into. Taking risks though, is part of living a fulfilling life. Mostly it works out, sometimes things go wrong. This can be said about alot of things - even something as simple as crossing the street or driving a car is associated with a calculated risk you decide to take.
I am interested in trying this even though I'm not a huge fan of tattoos but I chose to consult with a dermatologist first and found that the CO2 lasers used in these machines are often 10.600nm infrared light - exactly the same frequency used in surgical laser knives. They have no known side effects and as such, this method of branding is very safe aside from whats blatantly obvious - pain, risk of infection, etc. Actually, it may very well be one of the safest methods of marking your body "available" to date.
I do however feel it is not very constructive to call people idiots and I'd say that's a danger - if you have something important to say, this is not the way to get it through except to people who already feel as you do.
Also we obviously have differing opinions about what a child is. I see a young man taking risks, which according to me is an integral part of growing up. I've never enjoyed overly protective environments as they tend to hinder personal development, again - imho.
:[
Yes, skin is conductive enough.
> Pshh try tattooing with an arc welder then come talk to me
I'd advise against it, unless you'd like to look like this:
http://itdnhr.com/static/itdnhr-2007.jpg.
Plasma cutter accident. Lost a good chunk of my left hand.
HaD skull and crossbones?
picture of the laser cutter?
some random xkcd characters?
What is happening to the world?