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Thread: Scarey incident
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20th August 2008, 08:07 PM #1
Scarey incident
Hi there,
Had a a bit of shock at work today, closest thing to an industrial accident I've had! I was using the bandsaw, cutting repetitious curves in thin plywood when the blade snapped. BANG, one end flew down and rapped me across the left fore arm, leaving very minor scratches from the teeth. Nothing more than a cat would have done if you were silly enough to pat one of the mongrels, and if I'd been wearing a watch at the time I would have got out of it scott-free.
Further inspection revealed it snapped right on the join, which was hand done (by the supplier) and ground back. I don't think excess tension was the problem, as I have been working with this machine for 15yrs or so, and just changed the blade one week ago...basically I think I did the same thing I usually do, regardless of no tension gauge fitted.
Bit of a wake up though, could have been worse.
Cheers,Andy Mac
Change is inevitable, growth is optional.
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20th August 2008 08:07 PM # ADSGoogle Adsense Advertisement
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20th August 2008, 08:24 PM #2Awaiting Email Confirmation
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Dear Andy,
Wow - that would be scary! Alls well that ends well thank heavens. Does anyone know offhand if these things can seriously hurt you when a blade lets go?. I imagine they could...
Best Wishes,
Batpig.
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20th August 2008, 08:25 PM #3
yes they are a heart starter when they break. Good to hear youre OK. Was your forearm in line with the wheel? Resting on the table maybe?
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
Albert Einstein
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20th August 2008, 09:00 PM #4
Well not exactly resting, but over the table almost in line with the guide assembly, directing the ply. My right hand was back from the table, pushing.
I really don't know of the potential for more injury with this incident, as the blade seems to stop travel, caught up in the wheel guards. The lower end is what hit me, but seems like it can't keep getting pulled through, despite the wheels still spinning...and doesn't that top wheel keep going!! The bottom one has friction of the belt drive plus a foot brake which I activated, but nothing stops the top one.
Gave me a bl**dy start though!
Cheers,Andy Mac
Change is inevitable, growth is optional.
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20th August 2008, 09:17 PM #5
They can cause a start those things. I shudder when using a 3tpi 25mm blade nowadays after the previous one broke. Made me jump a mile and also put a slight bend in my top wheel
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20th August 2008, 11:09 PM #6China
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Not realy serious as you say the blade stops when it breaks, I would have had it happen hundreds of times over the years, I think I've only been touched once by the broken blade
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20th August 2008, 11:49 PM #7
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21st August 2008, 12:16 AM #8
A certain bloke around here (who shall be left nameless ) did himself a nasty the last time the BS blade let loose.
He'd over-tensioned a 1" blade while ripping and when it snapped the top wheel slammed upwards in a big way, breaking the tensioner and not stopping until more than 2 inches of the wheel was protruding past the top of the casing!
That alone wounded the wallet, but to add insult to fiscal injury... ya see, he'd been standing in the usual operating position and when the wheel went up the upper inspection hatch flew open... BANG! Right in the kisser! This caused him to stagger back, tripping over the shop dog, taking a corner of the TS table in the kidney on the way to the floor. While flailing around trying to regain balance, one arm knocked a 2kg tub of 35mm bugle screws off the nearby bench. Which somehow managed to hit the floor before he did, shattering the tub and spreading all those nice, short, pointy woodworkers versions of caltrops across the floor where they made the landing... interesting.
Meanwhile, the shop dog bolted for the door, knocking over the 2.4m lengths of 240x18mm pine planks that'd been leaning up against the TS. I'm sure you can guess where they landed. Hint: Murphy's Law.
So, a bloody nose, numerous minor cuts 'n bruises, a deflated ego... yeah, I reckon Bandsaws are bloody dangerous machines!
- Andy Mc
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21st August 2008, 12:20 AM #9
I shouldn't but
Cheers
DJ
ADMIN
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21st August 2008, 12:23 AM #10
And the dog was lucky if he kept running out the door of the shed. I sure wouldn't have stayed around for the role of Punch & Judy.
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21st August 2008, 12:25 AM #11
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21st August 2008, 01:22 AM #12You've got to risk it to get the biscuit
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well done skew
S T I R L O
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21st August 2008, 09:01 AM #13
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21st August 2008, 09:30 AM #14
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21st August 2008, 10:01 AM #15
That's just brilliant Skew... I'm sorry that your misfortune is so hilarious, but on the other hand, it's kind of lucky that it wasn't at the level where people needed to send you get well cards...
cheers,
Dave...but together with the coffee civility flowed back into him
Patrick O'Brian, Treason's Harbour
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