Author Topic: Wounded in battle (Read 45430 times)

Rebelgium · « **on:** January 07, 2008, 06:11:28 PM »

I thought it might be fun to have a topic on SoR where we can brag about our foolishness.
Feel free to post some pics here showing injuries you've gotten from working on your robotics projects. Solder-burns, laser-scars, Lithium explosion damage, ... Show it to the people!

You may also show damage to your robots caused by crashes, burns, torpedo's, etc.

Infact just show anything or anyone that got hurt by robotics.

In my defense: this is to warn people about the dangers of robots and building them.

ed1380 · « **Reply #1 on:** January 07, 2008, 06:20:13 PM »

i got to post this for admin

a year ago i read that tut and i still remember that

Rebelgium · « **Reply #2 on:** January 07, 2008, 06:30:58 PM »

Ahh yes !

The legendary first voltage regulator (or was it a FET for the motor driver?)

I wish I had taken a pic of my finger when I burnt it a few months ago while soldering.
I wasn't looking, and i wanted to grab the soldering iron fast, but I grabbed a bit too far and I completely grabbed the iron part...

Needless too say my hand didn't feel so good for the next days $:-\$

Some parts of my skin looked like cooked chicken...mmm chicken...but don't worry, I didn't hold it for very long. I released it and while pulling my arm away very fast, I bumped my elbow to the arm of the guy next to me...pretty hard

airman00 · « **Reply #3 on:** January 07, 2008, 06:47:57 PM »

anyone see my butler robot running me over ? i couldn't freakin move!, i was pinned down

and then theres that time i first used a jigsaw ............ lol

cooldog · « **Reply #4 on:** January 07, 2008, 06:54:49 PM »

ya last year i was playing with some old circut board and my hand slipped. all the little sharp things of solder cut my hand and i got 5 stitches

ed1380 · « **Reply #5 on:** January 07, 2008, 09:14:25 PM »

it was the h-bridge mosfet

gamefreak · « **Reply #6 on:** January 07, 2008, 09:20:08 PM »

In my schools robotics club I managed to get a nice looking scar to match my other(the new one's pink part is an inch long and 1/8 inch thick) there were no bandages so I used duct tape and paper towels to clean it up, and the cut was made of an oily igus rod from BEST. It happened from my hurry and not wanting to look when i literally jumped onto the ground to unplug the battery.

Im not safe

fr4ncium · « **Reply #7 on:** January 07, 2008, 11:19:09 PM »

I was testing some salvaged DC motors with a friend and hooked them up to a power supply. I forgot and didn't notice that he had switched the adjustment dial to control amperage instead of voltage. So I started turning the dial, thinking I was adjusting voltage to test how fast the motor would go and the motor speed barely increased. I kept turning the dial slowly, thinking "hmmmm this is strange". That's when I saw it was on amperage and just as I started to turn the dial back...

BAAAMMMMMMMMMMMM!

The capacitor wired to the power/ground connectors of the motor BLEW UP. There was cotton/confetti stuff all over the lab table. Luckily neither of us was hit by flying shrapnel, but my ears hurt for a few hours after that. Moral of the story? Check and double check the display!

Rebelgium · « **Reply #8 on:** January 08, 2008, 06:35:43 AM »

Quote from: fr4ncium on January 07, 2008, 11:19:09 PM

I was testing some salvaged DC motors with a friend and hooked them up to a power supply. I forgot and didn't notice that he had switched the adjustment dial to control amperage instead of voltage. So I started turning the dial, thinking I was adjusting voltage to test how fast the motor would go and the motor speed barely increased. I kept turning the dial slowly, thinking "hmmmm this is strange". That's when I saw it was on amperage and just as I started to turn the dial back...

BAAAMMMMMMMMMMMM!

The capacitor wired to the power/ground connectors of the motor BLEW UP. There was cotton/confetti stuff all over the lab table. Luckily neither of us was hit by flying shrapnel, but my ears hurt for a few hours after that. Moral of the story? Check and double check the display!

oooww, electolytic capacitors really stink if you blow them up. The whole room stinks like rotten fish and there's that cotton stuff everwhere

TrickyNekro · « **Reply #9 on:** January 08, 2008, 07:14:33 AM »

So far I only had one serious burn from the soldering gun... My soldering gun is at my left hand, but despite being a lefty, I used some things better with my right hand... So when I changed hand... I also needed to change skin... I almost grabbed the soldering tip!!!
It was a really bad burn bad there but I had to overcome it because I had volleyball training that day (and when you are in a crush with a girl you can't miss

- well it didn't turn out well

but there are more to come

!!! so I'm nice)(and yeah my finger was bad - but it was right hand so never mind!!!)
Some cuts... regular thing... And with a big hope not to have respiratory problem after this long hours of soldering in a not so well ventilated environment....

Admin · « **Reply #10 on:** January 08, 2008, 07:54:15 AM »

The #1 lesson I learned: Always be afraid of anything that is potentially dangerous, even if you are an expert at it. As soon as you lose the fear, you make dumb decisions.

My list of pain:
Almost cut my thumb off with a bandsaw . . .
Burning my finger with a mosfet, as ed pointed out above
Several near misses of highspeed flying parts hitting close to my eyes
Poorly secured parts in a drill press spinning and hitting me

List of pain from my friends:
Electrocution, several times . . .
Almost cutting various fingers off with a bandsaw, needing stitches
(I remember following a trail of blood to find my friend)
Capacitors exploding in the face (mostly smoke and noise)
Exploding L298 motor driver (pretty colors!!!)
Battery acid burns (resulted in him taking his pants off)
Long metal fragment passing through a thumb (through the fingernail, too)
Sulfuric acid spill (resulted in him stripping to his boxers)

Tips:
Wear safety goggles - always. I wear them when I solder, cut leads off of boards, machine, use chemicals, even when I turn on a new circuit for the first time. You only have two eyes.

When using chemicals, do it outside or in a very ventilated area. I also vent my solder fumes (lead poisoning!). Read the safety manuals before using the chemical.

Tie down flammables and store in cool safe locations.

Read the manual for your power tools before using them. No loose clothing. Make sure you always have someone close by if something goes horribly wrong. People cutting off fingers is actually fairly common with power tools . . .

vidam · « **Reply #11 on:** January 08, 2008, 09:54:32 AM »

Quote from: Admin on January 08, 2008, 07:54:15 AM

Tips:
Wear safety goggles - always. I wear them when I solder, cut leads off of boards, machine, use chemicals, even when I turn on a new circuit for the first time. You only have two eyes.

When using chemicals, do it outside or in a very ventilated area. I also vent my solder fumes (lead poisoning!). Read the safety manuals before using the chemical.

Tie down flammables and store in cool safe locations.

Read the manual for your power tools before using them. No loose clothing. Make sure you always have someone close by if something goes horribly wrong. People cutting off fingers is actually fairly common with power tools . . .

Important Tip:

Never solder directly to a lead acid battery!!!!

Admin · « **Reply #12 on:** January 08, 2008, 09:58:23 AM »

Quote

Never solder directly to a lead acid battery!!!!

Did you have an incident? I've done it a few times no problem. There is a post in this forum about it if you search a bit.

vidam · « **Reply #13 on:** January 08, 2008, 10:07:11 AM »

Quote from: Admin on January 08, 2008, 09:58:23 AM

Quote
Never solder directly to a lead acid battery!!!!
Did you have an incident? I've done it a few times no problem. There is a post in this forum about it if you search a bit.

The cell is fine and there was no fire. My friend de-soldered the leads from the battery for me. But he was very apprehensive doing it.

Soldering heat will fry the cell and may cause your house to burn down. To avoid this danger please use solder tabs using spot welds.

hazzer123 · « **Reply #14 on:** January 08, 2008, 10:50:00 AM »

This didn't happen to me, but i once heard about a guy who cut his finger off with a circular saw.

What happened was the lights in the room were powered by 50Hz AC electricity and the saw must have been rotating at a multiple of 50 revolutions per second. This caused the strobe effect where the saw looked stationary. The guy thought, thats weird... it sounds like its on... so he touched it and chopped his finger off!

TrickyNekro · « **Reply #15 on:** January 08, 2008, 12:23:21 PM »

Quote from: hazzer123 on January 08, 2008, 10:50:00 AM

This didn't happen to me, but i once heard about a guy who cut his finger off with a circular saw.

What happened was the lights in the room were powered by 50Hz AC electricity and the saw must have been rotating at a multiple of 50 revolutions per second. This caused the strobe effect where the saw looked stationary. The guy thought, thats weird... it sounds like its on... so he touched it and chopped his finger off!

You best note this with TV's and TFT's in the dark... I've never noticed this with regular lamps... Must have been the tube lamps we have at bathrooms!!!

Poor guy though...

Asellith · « **Reply #16 on:** January 08, 2008, 03:03:20 PM »

I learned to never solder in shorts.

Was soldering and drop the iron, I was worried about catching the carpet on fire and it hit my bare leg. The bad part was it stuck to my leg and I had to rip it and several layers of skin off. So don't weed whack or solder in shorts

ed1380 · « **Reply #17 on:** January 08, 2008, 03:10:13 PM »

1- spilled batery acid over myself and didnt know about it till i got to wally world and saw bunch of holes in my pants (wearing them now

)
2- inhaled ALOT of toxic fumes (pretty much anything you can think off)
3- the generic burns/cuts\

might think of more stuff later

Rebelgium · « **Reply #18 on:** January 08, 2008, 03:20:47 PM »

Quote from: ed1380 on January 08, 2008, 03:10:13 PM

might think of more stuff later

maybe some memory damage to?

ed1380 · « **Reply #19 on:** January 08, 2008, 03:23:10 PM »

lol. that comes with the inhaling of substances

HDL_CinC_Dragon · « **Reply #20 on:** January 08, 2008, 06:22:32 PM »

Ive cut myself pretty badly once or twice, soldered my fingers several times, impaled my fingers with ICs (once had an entire 555 stick completely into my friggen index finger... Then my nose started flashing on and off, dunno what that was about.

Oh and ive crushed my hands, fingers, knuckles, etc >_<

Rebelgium · « **Reply #21 on:** January 08, 2008, 06:25:09 PM »

Quote from: HDL_CinC_Dragon on January 08, 2008, 06:22:32 PM

Oh and ive crushed my hands, fingers, knuckles, etc >_<

Judging by your sig, that's not the only thing that was crushed...

Sorry

, I couldn't leave it

garriwilson · « **Reply #22 on:** January 08, 2008, 07:37:14 PM »

Quote

Judging by your sig, that's not the only thing that was crushed...

Oooh, that's the worst burn you can get. LOL

Too funny

gamefreak · « **Reply #23 on:** January 08, 2008, 08:24:46 PM »

I just remembered another injury i almost had.

I was in my schools physics lab with my physics teacher attempting to figure out the thurst of a outrunner motor with a 5 inch computer fan. He supposedly clamped it, told me to put it on full power, as soon as I did it shot off the clamp hit the table and two blades shot behind my head, another shot into his computer, and the other two were never found.

ed1380 · « **Reply #24 on:** January 08, 2008, 09:00:43 PM »

Quote from: Rebelgium on January 08, 2008, 06:25:09 PM

Quote from: HDL_CinC_Dragon on January 08, 2008, 06:22:32 PM
Oh and ive crushed my hands, fingers, knuckles, etc >_<

Judging by your sig, that's not the only thing that was crushed...

Sorry , I couldn't leave it

i dont get it. are you talking about his sig getting resized?

cooldog · « **Reply #25 on:** January 08, 2008, 09:14:01 PM »

they are talking about the picture in his signature, it got smaller

Rebelgium · « **Reply #26 on:** January 09, 2008, 03:19:47 AM »

Quote from: cooldog on January 08, 2008, 09:14:01 PM

they are talking about the picture in his signature, it got smaller

uuhm... Do I suck at telling jokes, or do you suck at understanding them?

I meant his head had been crushed too...

ed1380 · « **Reply #27 on:** January 09, 2008, 06:53:58 AM »

it's the fumes

from now on everything is gonna get blamed on them

HDL_CinC_Dragon · « **Reply #28 on:** January 09, 2008, 10:03:15 PM »

hahahaha poor fumes... the jerks... they made me forget my lunch money the other day...

gamefreak · « **Reply #29 on:** January 09, 2008, 10:19:12 PM »

robots are outsmarting humans, its aleady happening!!!

Before we give them the slightest technology they are killing are brains with fumes, drawing our blood with tools, burning us, becoming suicide bombers, attempting to commit suicide thus causing us to try and fly to their aid most commonly resulting in an injury to us, and becoming very confusing very fast.

now what will happen when they can actually think.... $:-\$

News:

Author Topic: Wounded in battle (Read 45430 times)

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