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Old 10-23-2015, 12:15 PM   #26041
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Old 10-23-2015, 12:48 PM   #26042
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Quote:
Originally Posted by sixshooter View Post
(overly-aggressive AutoX driver)
That's just painful to watch...


I owned the second-cheapest angle-grinder sold by HF for about ten years. Wasn't using it in a production environment, obviously, but I treated it pretty roughly. The handle finally broke, prompting me to get rid of it. I should have opened up the gearbox for inspection, but didn't think to. By the end, it was still making the same horrible rattling noise that it had made since the day it was new.


Angle grinders, in general, seem to be hard to kill.


Grinding / cutting discs, by comparison, appear to explode with some regularity.


Click the links to see images of people with gruesome facial, neck and head injuries from exploded angle-grinder discs, including three in which a significant portion of the disc (like half) is still embedded in the jaw / face:


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307


https://surgeonsa.files.wordpress.com/2012/12/1-4.jpg


http://www.miataturbo.net/attachment...ine=1445615307


http://www.miataturbo.net/attachment...ine=1445615307




I wonder what it would take in terms of PPE to protect your face and neck from an exploding grinder disc? I doubt those full-face plastic shields would do much to stop half a cutting wheel traveling at a gazillion miles per parsec.
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The Random Pictures Thread. Only Rule: Post here more and entertain me.-558bfa33013e0_cen_facemutilation_04.jpg   The Random Pictures Thread. Only Rule: Post here more and entertain me.-achp6d69_zps6bcda1b7.jpg   The Random Pictures Thread. Only Rule: Post here more and entertain me.-ntvmj7iqao.jpg   The Random Pictures Thread. Only Rule: Post here more and entertain me.-angle-grinder.jpg   The Random Pictures Thread. Only Rule: Post here more and entertain me.-1-4.jpg  


Last edited by Joe Perez; 10-23-2015 at 03:42 PM. Reason: If you're gonna reduce my images to links, use the right tag so that the link actually works.
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Old 10-23-2015, 12:59 PM   #26043
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[IMG]cat orgy[/IMG]
Dirty kitteh and the boiz?


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Old 10-23-2015, 01:06 PM   #26044
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This is me from now on when I use my angle grinder.

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Old 10-23-2015, 01:47 PM   #26045
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This is me from now on when I use my angle grinder.

**** that. I'm throwing mine away now. Did not need to see that.
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Old 10-23-2015, 01:48 PM   #26046
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i cant even use a dremel without injury.


remind me never to use an angle grinder ever again.
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Old 10-23-2015, 01:57 PM   #26047
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I bought a full face shield. I don't use my angle grinder without it. **** that.
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Old 10-23-2015, 01:59 PM   #26048
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But now I know y8s truly loves me. cause he gave me his face shield last time I borrowed his grinder -- and i used it.
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Old 10-23-2015, 02:19 PM   #26049
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How does this happen if the wheel guard is still in place?
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Old 10-23-2015, 02:22 PM   #26050
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Quote:
Originally Posted by aidandj View Post
I bought a full face shield. I don't use my angle grinder without it. **** that.
That the thing, though. I question the efficacy of a flimsy sheet of clear plastic when tasked with a relatively heavy fragment travelling faster than rumors about the TSE turbo kit.

I'm sure they're great for protection from sparks, dust, and things like that. I'm not so sure they'd stop a bullet or half a grinding wheel.



Quote:
Originally Posted by mgeoffriau View Post
How does this happen if the wheel guard is still in place?
Ricochets, holding the grinder at an odd angle (we've all done it), disc deforms during fracture and comes out the bottom, etc.
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Old 10-23-2015, 02:25 PM   #26051
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When the US government decided to throw beavers out of airplanes, for science.

(Sounds like a Cave Johnson idea.)

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Old 10-23-2015, 02:29 PM   #26052
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When the US government decided to throw beavers out of airplanes, for science.

(Sounds like a Cave Johnson idea.)

Fur for the Future - YouTube


i was totally about to post this on your FB page today! but got distracted
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Old 10-23-2015, 03:34 PM   #26053
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Quote:
Originally Posted by Guardiola View Post
What kind of motor is in it now? I guess the better question is what will be going in it?

I've always wanted a little Tuk Tuk style pickup.

Borrowing a raptor 1200 motor controller. I have some special sauce lithium ion batteries. Going to get a cycle analyst computer.

Then see if I can do wheelies without breaking things.

End goal is be able to register it as a neighborhood electric vehicle and drive it to work....doing burnouts.
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Old 10-23-2015, 03:34 PM   #26054
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i was totally about to post this on your FB page today! but got distracted
Joe P has a facebook? I would kill to be friends with Joe P.
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Old 10-23-2015, 04:00 PM   #26055
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I bet the face shield does more than you think. The grinding wheel weighs almost nothing, and it weighs about 1/3 of nothing when it breaks into small chunks after exploding. The face mask is going to move a lot when something strikes it, since it's not firmly bolted down, so as a worst-case scenario, the shard would embed in the plastic pretty firmly.

I've had the pleasure of using a 20,000rpm grinder that some dimwit put a 16,000rpm wheel into. The ensuing explosion had my shop partner and I (this was in college) doing one of those "Am I bleeding profusely" pat-downs afterwards. We never even found the individual pieces from that wheel - it was like it just vaporized. I keep lots of name-brand grinding wheels at the shop and I throw away any wheel that even looks like it might be a little iffy.
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Old 10-23-2015, 04:14 PM   #26056
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I've had end mills break at 10000rpm that were stopped by a 1/8" polycarbonate window on the machine. Like Sav said, they bury themselves in the plastic. It is a gnarring/melting event.
Also, the curvature of the face shield would probably help deflect debris to the sides.

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Old 10-23-2015, 04:25 PM   #26057
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Joe P has a facebook? I would kill to be friends with Joe P.


( jump to 3:20 for aidandj's role )
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Old 10-23-2015, 04:43 PM   #26058
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i was totally about to post this on your FB page today!
And yet, you did not.



Quote:
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Joe P has a facebook? I would kill to be friends with Joe P.
There's far less pony on my FB page. It's pretty boring, in fact. You guys get most of the good stuff here.
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Old 10-23-2015, 05:38 PM   #26059
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Old 10-23-2015, 05:57 PM   #26060
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SPACE

http://astro.vm.rub.de/ - Huge image of the milky way
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