NS Dev
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 posted on 17/9/07 at 06:42 PM |
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Eeek a close call
Had a close one today, don't think anything in my hand is broken but it smarted a fair bit
Did the old "chuck key in the lathe" trick...but not in a lathe.
I have enver yet left a chuck key in anything, but a bit tired today, setting up a job in a Bridgeport mill and put a ring spanner on the drawbolt nut
to turn the quill to set the cutter to an edge, then just reached over and turned the spindle motor on without thinking........................
As anyone who has used one will know, this leaves your arm between the spanner (which being a ring one can't come off) and the switch/motor.
My arm smashed the switch before the drawbolt came undone, lucky I didn't tighten it too much
Stupid accident, but I was lucky and certainly won't do it again, and to anybody using a bridgeport, don't use a ring spanner on the
drawbolt
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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RichardK
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| posted on 17/9/07 at 06:52 PM |
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Glad you're alright, indeed easily done, especially when a bit knackered.
I spent 3 hours in Harrogate A&E on Sunday through stupidity and rushing, didn't support the front end while mucking about with the lower
ball joint, end result crushed middle finger and a bit missing out of the side
Wife was upset cos I spoiled one of her best tea towels and the hospital car park cost her £4.50
So no building for a while, bit of a bugger, first accident in 2 years building, normally I'm so careful.
Thanks to another builder Fazerruss that came over straight away to put my car back fully into the garage. thanks mate.
So in short...Take care out there!
Regards
Rich
[Edited on 17/9/07 by RichardK]
Gallery updated 11/01/2011
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David Jenkins
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| posted on 17/9/07 at 06:59 PM |
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It took me a while to work out the following rule, but...
When you're tired, or annoyed with something, WALK AWAY! Disaster is imminent if you carry on.
I've done so many stupid things when not running at 100% brain power... like grinding a lot of welds and was a bit knackered, thought I'd
finished so took off all my protective gear, then noticed a little bit that needed doing. Picked up the grinder, went to it without gloves, and ended
up grinding a chunk out of my finger. 'Oh bother' I said...
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Mr Rob
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| posted on 17/9/07 at 07:06 PM |
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Ha, been there, got the scars!!
At my apprentice school if we left are chuck keys in machine the tutors threatened to make us wear the keys around are necks!!
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steve m
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| posted on 17/9/07 at 07:26 PM |
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"At my apprentice school if we left are chuck keys in machine the tutors threatened to make us wear the keys around are necks!! "
with them in the chuck, with hand poised on the start button ???
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Avoneer
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| posted on 17/9/07 at 07:43 PM |
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Speaking of accidents and chuck keys...
I thought with an electric drill (my dewalt one) it was good practice to put the chuck in the rubber web thing that is moulded to the bottom of the
handle where the power lead comes out.
Great idea so you don't loose it, bad idea if the drill bites, spins round and the serated teeth on the chuck key finds your eyebrow.
To make matters worse, I was under the floor which is like a 20M labryinth from the hole under the stairs!
Came up looking like a zombie covered in blood.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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NS Dev
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| posted on 17/9/07 at 07:43 PM |
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You're dead right David!!!
Re. the chuck key thing, at least with that the worst is that it flies out across the shop, unfortunately with the mill, the full power of the mill
goes into the spanner on the drawbolt, whichj was then stopped (briefly) by my hand. 3hp feels pretty unpleasant!!
Fortunately the drawbolt came loose pretty quickly (and I suppose it was useful that my hand wasn't rammed right into the smashed open live 415v
motor switchbox)
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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darrens
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| posted on 17/9/07 at 08:03 PM |
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quote:
Originally posted by Avoneer
Speaking of accidents and chuck keys...
I thought with an electric drill (my dewalt one) it was good practice to put the chuck in the rubber web thing that is moulded to the bottom of the
handle where the power lead comes out.
Great idea so you don't loose it, bad idea if the drill bites, spins round and the serated teeth on the chuck key finds your eyebrow.
To make matters worse, I was under the floor which is like a 20M labryinth from the hole under the stairs!
Came up looking like a zombie covered in blood.
Pat...
I've also done that with a battery dewalt and a drill bit in the holder, got so annouyed at my mistake I hurled the drill at the wall,
which..... wasn't the most intelligent thing to do I must admit. It broke the battery in two and snapped a very expensive bit.
[Edited on 17/9/07 by darrens]
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iank
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| posted on 17/9/07 at 08:09 PM |
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Sorry to hear you get hurt - and very good you didn't get a 415v belt, it makes a 240v shock feel like a love tap.
People have been killed by flying chuck keys, but the lathe I used 15 years ago had a sprung chuck key so it was impossible to leave it in by mistake,
are they not mandatory? - mind it was a weird lathe, French made and metric so the company got it second hand almost for free as no one wanted
it.
[Edited on 17/9/07 by iank]
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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David Jenkins
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| posted on 17/9/07 at 08:20 PM |
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I know of many people who fit a spring to each of their chuck keys, if they weren't there already.
It's one of those jobs I keep meaning to do, but have never got round to it...
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BenB
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| posted on 17/9/07 at 08:25 PM |
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I was drilling out my shock bushes (long story). Unfortunately Black + decker had made the drill for poxy right handers. As I squeezed, the muscle at
the base of my thumb pushed in the index-finger-for-right-hookers "permanently on" button just before the bit snagged in the bush. Drill
wizzed round double quick time, wacked me on the back of the hand before doing a cathrine wheel impression until the cord was so wound round the
handle it pulled the plug out the wall socket 
Hurt like hell but could have been so much worse....
like the time I was angling grinding sparks all over the STM garage whilst Ian Gray was filling up a petrol tank from a jerry can....... He blamed me,
I blamed him Fair doozy!
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adithorp
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| posted on 17/9/07 at 08:36 PM |
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A mate left the chuck key in and pressed the start button. Unfortunatly the stop switch on the safty guard was broken and it started with the guard
up. took his hand round and cut his finger off on the guards edge!
adrian
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martyn_16v
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| posted on 17/9/07 at 08:45 PM |
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quote:
Originally posted by iank
Sorry to hear you get hurt - and very good you didn't get a 415v belt, it makes a 240v shock feel like a love tap.
I can vouch for that, 3 phase hurts Luckily I only got a jolt across my hand and a couple of wee burns on two fingers. It could have been worse, it
was a 4kV generator I was working with, and the 1MV impulse generator wasn't far away
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DIY Si
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| posted on 17/9/07 at 08:48 PM |
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And to think they let me play with 3 phase meters! So that's 3 x 600 amp fuses in the nearest substation backing up the wires I could fall onto!
Just as well I have a load of shielding!
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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Catpuss
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| posted on 17/9/07 at 09:55 PM |
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I've had a black and decker with a polishing attachment hanging from my hair a few times with smoke coming out the motor.
Its when you do it and the drill bit is being pulled in towards the side of your head at speed that it gets a bit dangerous
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Avoneer
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| posted on 17/9/07 at 10:16 PM |
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This is all getting a bit grim for me now.
Take care Mr NS Dev.
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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02GF74
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| posted on 18/9/07 at 08:29 AM |
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ouch!! hopefully you'll recover and all will be well,.
Black and Decker drills are evil.
I was drilling > 20 mm holes with black smith drills in a Land Rover bumper when the drill snagged, somehow the on button latch got pressed andthe
thing got ripped out of may hands - I stood there for a second or so watching the drill turn round on tiself as the mains cable got wound tighter and
tighter..... until I pulled the plug out.
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MikeRJ
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| posted on 18/9/07 at 09:14 AM |
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At an engineering training center when I was an apprentice, I can remember looking up from whatever I was turning, to see a lad holding onto the chuck
key of a big lathe, and leaning over to press the start button. Unfortunately the chuck key was still in the chuck! It was ont of those
slow-motion-feeling-of-helplessness moments as it was too quick to do anything. I saw the chuck key yank his arm around the back of the lathe, but
by some amazing stroke of luck the middle of the key hit a guard and stayed in the chuck, stalling the lathe before his fingers hit anything. Brown
trousers....
The guy who chopped a finger off on a old horizontal mill AFTER switching it off was not so lucky. Big flywheels on those machines.
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CGILL
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| posted on 18/9/07 at 09:46 AM |
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Learnt to look around if in an unknown workshop once, was at a mates place helping with an engine transplant, went to make up a throttle bracket.
Grabbed a piece of scrap 3mm iron, chucked it in the vice and popped on goggles. Grabbed the angle grinder with a cut off disc and got stuck in, BANG
and a huge puff of smoke. Didn't notice the batteries charging under the bench, nice big hydrogen pop. Hopped into the shower, meanwhile the
trackies disintergrated.....
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