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Unread postAuthor: evilvet » Mon Dec 26, 2011 6:33 pm

I have tried to come up with a lockout system a few times, never really pursued it to the end. A simple knife switch arrangement that is closed by pressing the chuck key in place would do, without it you cannot start the drill / lathe / mill.

For now I have a hook on the wall with a red square painted around it and have trained myself to check every time that the square is occupied.

Rough calculation says a 3000rpm chuck that is 50mm in diameter has a peripheral speed of about 30km/h. Assuming that gets imparted to the chuck key at launch, do you really want a chunk of metal hitting you in the face at that speed ?
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Unread postAuthor: MrCrowley » Mon Dec 26, 2011 6:34 pm

mobile chernobyl wrote: Starting a drill press or lathe with the chuck key in place leads to interesting results!
Back in highschool I made that mistake several times with a lathe. I was lucky and only ever got hit by it once, but damn it freakin hurt.

In other news, I leave for Sydney in less than 24 hours. See you guys in a weeks time.

another idiot, i didnt say leave the chuck in, i mean like tie a piece of string, from the chuck to the drill , so you dont loose it, i never said leave it in, there is nothing bad or dangerous about using a piece of string
jsefcik, sorry but you're the idiot this time. People leave keys in chucks all the time so the argument is that it is safer to accidentally leave a loose key in a chuck than to accidentally leave a key tied to something in the chuck.

If people never made the mistake of leaving keys in chucks then turning the drill on, people would never lose chuck keys either so that would make the string redundant :D
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Last edited by MrCrowley on Mon Dec 26, 2011 6:39 pm, edited 1 time in total.
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Unread postAuthor: evilvet » Mon Dec 26, 2011 6:37 pm

another idiot, i didnt say leave the chuck in, i mean like tie a piece of string, from the chuck to the drill , so you dont loose it, i never said leave it in, there is nothing bad or dangerous about using a piece of string


Yes, we heard you. So you have tied a bit of string to the chuck key and tied the other end to a fixed object, cannot loose the key now, heh heh, clever you.

What happens if you FORGET to remove the chuck key and start the drill....................?
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Unread postAuthor: jrrdw » Mon Dec 26, 2011 6:38 pm

I made my own drill press stand and included a 2 X 3 X 6 inch tool box to store the little things in, and hooks on the stand pole to hang the vises on. I smart! :D
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Unread postAuthor: evilvet » Mon Dec 26, 2011 6:53 pm

In other news, I leave for Sydney in less than 24 hours. See you guys in a weeks time.


Another bloody Kiwi taking up space in Bondi :P

Hope the weather up there improves for you, you could always come to Melbourne and watch the end of the Test.
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Unread postAuthor: POLAND_SPUD » Mon Dec 26, 2011 7:00 pm

another random video
[youtube]http://www.youtube.com/watch?v=pfYs5C8D4uk&feature=player_embedded[/youtube]

ohh and don't worry it's called SMAVNET not skynet so everything will be just fine :?
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Unread postAuthor: Daltonultra » Mon Dec 26, 2011 7:09 pm

jsefcik wrote:another idiot, i didnt say leave the chuck in, i mean like tie a piece of string, from the chuck to the drill , so you dont loose it, i never said leave it in, there is nothing bad or dangerous about using a piece of string


You never took shop class, did you? You never, EVER leave anything that can get caught by a chuck, a bit, a blade, or any other piece of a machine.

Whether you leave it in the chuck or not, a chuck key on the end of a string is a flying missile in the offing. Get the string caught by accident, and it WILL fling that key across the room, or wrap the string around something, possibly some part of YOU, and pull it into the bit.

Loose clothing, bracelets, watches, rings, earrings, necklaces, and pieces of string have NO PLACE anywhere near power tools.
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Unread postAuthor: Zeus » Mon Dec 26, 2011 7:16 pm

I've left a chuck key in a power drill(in a drill press stand thingy) before, I was drilling some fairly hard stainless, so I had the drill going flat stick.

Let's just say a chuck key flung by a drill going at a couple of thousand RPM sort of stings. Never made that mistake again.
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/sarcasm, /hyperbole
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Unread postAuthor: Gun Freak » Mon Dec 26, 2011 7:34 pm

See you guys in a weeks time.

Bon voyage! Or, ttyl, as we say in the States :lol:

I think I know why my chuck key has a spring loaded thingy on the tip of it-- so it can't get left in! Very smart.

Regarding the milling vise I don't think I'll be doing much milling and if I get one I'll be so compelled to mill that I'll destroy my press. However, I did order some lathe cutting tools to try my hand at the Tech piston method.

The press is definitely the scariest machine I've ever operated... it's right up there with the miter saw :roll:
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Unread postAuthor: Zeus » Mon Dec 26, 2011 7:40 pm

Scary? SCARY?

You big wuss. Use a dull chainsaw on soft wood with no kickback protection. Or a 9" angle grinder (the only tool I refuse to use).

Good to see you're getting set up properly, enjoy it.
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Unread postAuthor: evilvet » Mon Dec 26, 2011 7:41 pm

Two things in my workshop that get treated with the greatest respect

Table Saw, very unforgiving.
http://www.tritontools.com/Product/330185

Compound Mitre Saw, also known by the Latin name Digitus Removus.
http://www.bunnings.com.au/products_pro ... Mitre+Saws

I started floor sweeping in machine shops 40 years ago and have worked on most power tools the DIY'er could expect to handle. These two still make me pay very close attention.
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Unread postAuthor: Sparkie » Mon Dec 26, 2011 7:46 pm

Couldn't you just use a bit of chain instead of rope?
At least it would stall the drill first........at least my gutless piece of drill press it would.
Awaiting a huge backlash of ridicule ;-)
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I do agree tying your chuck to your drill press is not a good idea.
Luckily my lathe has a guard on it which wont allow it to turn on with a chuck key in it.
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Unread postAuthor: evilvet » Mon Dec 26, 2011 7:48 pm

Couldn't you just use a bit of chain instead of rope?


Hmmm, being whipped in the face by a bit of chain vs a bit of string.........
Whatever floats your boat :)
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Unread postAuthor: MrCrowley » Mon Dec 26, 2011 8:46 pm

evilvet wrote:Hope the weather up there improves for you, you could always come to Melbourne and watch the end of the Test.

Already got tickets for the first day of the second test :D
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Unread postAuthor: jrrdw » Mon Dec 26, 2011 9:17 pm

Scariest tool in my shop? 12 ton hydraulic shop press! All though small in terms of hydraulic presses there's still a very wary feeling when I'm putting anywhere from 1" lb to 12 tons of pressure on a part and it doesn't move and the entire press frame is starting to twist and make creaking noises.

Is the part going to break and pieces fly out in all directions? Is the plate going to shatter and cause the 250 dollar part to hit the press table and break costing me 5 hours pay in the 3 minutes it took to do the set up and pump the jack down?

Then there's the give. All is well. The part pressed. Cast mower deck spindles are the worst. By the time the bearings need replaced things are rusted, gaulded and corroded together no matter how much cleaning or penetrating oil is used the mandrels never ever push/press easy.
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