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11th July 2012, 06:22 AM #1
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A reminder - Even pen turning can be dangerous!
I'm posting this as a reminder to wear appropriate safety equipment... something I try to always do.
It really paid off and I had a lucky escape today... This drill chuck and broken bit left the lathe at 700 RPM and bounced off my head today... notice the shattered drill bit stump!!
It's a really good job I was wearing the cheapo visor on the right, rather than my often used goggles...
...or I'm sure it would have been VERY VERY bad.
It glanced of where my forehead would have been... just like a header in soccer, with a resounding thwack that pushed me back as if I'd been kicked in the head by a horse!
I normally drill blanks on the lathe, so I'm used to doing it, but rather than use the tailstock to wind the drill in and out, I was moving the tailstock out manually (which I don't usually do), and the drill chuck decided to leave the morse taper, snap the drill bit and it left the lathe like a bullet (with a similar noise), before hitting me where my uncovered forehead would have been had I been wearing the goggles.
After I recovered from the shock it took me another 25 minutes to find the drill chuck. If I had not been wearing the visor someone could possibly have been looking for my brains instead!
Stay safe people!
__________________
Cheers,
Chrome
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11th July 2012 06:22 AM # ADSGoogle Adsense Advertisement
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11th July 2012, 06:32 AM #2
never can have too much wood
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HOLY CRAP 
damn your lucky with that one
its a pain that due to your almost misfortune that this is a safety reminder to all
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11th July 2012, 06:51 AM #3
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From what you've described, that was one lucky miss!
Glad you're okay!-Scott
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11th July 2012, 08:47 AM #4
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The jacobs drill chuck should have never pulled off the morse taper like that, the "short" taper on the arbor is designed to deform some when the chuck is pressed on, locking the chuck on/in place....suggest if you know some one with a bearing press or an arbor press, see if you can have them press the chuck back onto the arbor for you.
Lucky you were wearing a shield, good call.
Bet you keep the shield handy from now on.
Should keep this post as a "sticky" at the top of the forum for new folks to read."That's why I love my computer,,,,,,,, my friends live in it."
- Colin Greg, Barnsley, South Yorkshire, England
Pen Turner Extraordinary and Accidental Philosopher.
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11th July 2012, 09:52 AM #5
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This is a good reminder that these are just a friction fit, not a press fit.
Another reason why you work from the tailstock end as well.
When drilling you have the pressure against the drill bit onto the peice you are drilling, when you release that pressure and the drill bit is still in the work peice the forces try to twist the drill bit
This is why when you go to back of you hold the drill chuck in your hand with just enough pressure to stop any twisting action so it will not come out of the taper.Jim Carroll
One Good Turn Deserves Another. CWS, Vicmarc, Robert Sorby, Woodcut, Tormek, Woodfast
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11th July 2012, 11:15 AM #6
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Very lucky mate, glad you weren't hurt.
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11th July 2012, 05:59 PM #7
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A very lucky escape Chrome.
But as Jim has said I always hold the chuck as I am winding it out of the blanks because they do come loose very often and I have had it dangling off the blank once. It does give you a bit of a scare.
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11th July 2012, 06:19 PM #8
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Very lucky to be wearing the visor.
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11th July 2012, 08:48 PM #9
Keeper of the wood
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Phew !!!
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11th July 2012, 09:13 PM #10
Wandering in search of timber
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Good advice
Originally Posted by Jim Carroll
Neil____________________________________________Every day presents an opportunity to learn something new
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11th July 2012, 10:33 PM #11
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, Chrome, I am glad you are ok, you should have posted the story this way, "Drill shatters after hitting man of steel!
" , joking aside, you are a lucky fellow. Amos
Good, better, best, never let it rest;
Til your good is better, and your
better, best.
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12th July 2012, 09:27 AM #12
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Phew... glad your okay !!! Good reminder not to be complacent... Thank you !!
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12th July 2012, 10:23 AM #13
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Good thing you are not hurt , I have had a similear situation where the chuck was not tight in the tailstock and it came out when drilling started to spin in time with the lathe before the drill bit shaped off and bounced across the room, luckily I was to the side to he lathe at the time.
Regards Ben
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12th July 2012, 11:35 PM #14
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Close Call eh Chrome. Glad your OK mate. Hope you didn't bugger up one of your master piece castings
. I do all my blank drilling on a floor standing drill pres, but Once I have had the chuck pull out of that when drilling Kwila hardwood. Nice to have good reflexes eh !
I never forget anything I remember !!
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13th July 2012, 01:38 AM #15
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I had a similar thing happen to me also, just a scrape on the arm. Originally Posted by Bupton
Damn glad you weren't hurt.
Kryn
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