What's so deadly about this contraption?

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Gregory East
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What's so deadly about this contraption?

#1 Post by Gregory East »

Collecting up the necessaries for cab building I came up with the idea of a home made table saw top jig'umiwhatsit. Figuring it's probably been done before I had a search and came up with this beauty: http://billfitzmaurice.com/phpBB2/viewtopic.php?t=1227

I had in mind a hybrid of this and Bills panel jig to go on my foldup vice table, (two 3/4 ply slabs with one on worm screws to make a vice). The Dave style regular fence arrangement solves a lot of potential alignment problems so I'm drawn to that. But it doesn't guarantee square panels unless the sheet is square to start off. So depending on how square NZ ply is I might need the panel jig to go over top of similar homemade table attachment.

Now, not being a woodworker, I fail to see how this thing can kill you. Can it spit a slice of wood at you? Harley made a post about that but I gathered he turned it on without having hands on the timber. Chop a hand off, I get it. Bill's table jig has the push plate to get your hands out of the firing line, much safer. I can see it would be a good idea not to fall on top of it. Hmmmm, anything I'm missing?

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Bill Fitzmaurice
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Re: What's so deadly about this contraption?

#2 Post by Bill Fitzmaurice »

Gregory East wrote: Can it spit a slice of wood at you?
It can. Kickback is the #1 source of table saw related injuries. With a panel cutting jig the rear stop prevents kickback, and it allows one to square panels as well.

bgavin
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Re: What's so deadly about this contraption?

#3 Post by bgavin »

Ask Harley about getting piezo pieces spat at him. A number of guys think that melded array building is most dangerous operation of the bunch.
My biggest worry is that when I'm dead and gone, my wife will sell my toys for what I said I paid for them.

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Harley
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Re: What's so deadly about this contraption?

#4 Post by Harley »

Gregory East wrote:.. Harley made a post about that but I gathered he turned it on without having hands on the timber. ...?
Yes, that was when I was setting up the saw...BUT...it goes to show how dangerous a table saw can be and without hesitation it will fire wood at you quicker than a Malcolm Marshall delivery during ANY part of the cut.

I am a super cautious table saw operator and yet I still get surprises now and again.
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

bgavin
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Re: What's so deadly about this contraption?

#5 Post by bgavin »

A thick sheet of Plexiglass might be just the ticket for these operations. Mounted such that it could be placed or removed easily, it might serve well as a see-through scatter shield.
My biggest worry is that when I'm dead and gone, my wife will sell my toys for what I said I paid for them.

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SoundInMotionDJ
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Re: What's so deadly about this contraption?

#6 Post by SoundInMotionDJ »

Harley wrote:Yes, that was when I was setting up the saw...BUT...it goes to show how dangerous a table saw can be and without hesitation it will fire wood at you quicker than a Malcolm Marshall delivery during ANY part of the cut.
Is that some kind of obscure sporting reference? :wink:

I have managed to kick back a board out of a tablesaw about once every 24 months. I've been in the path of those boards three times. :shock: Only once did I need a trip to the ER.

But, every time it happens, I walk away from the tablesaw and drink all the beer in the fridge. That helps to build in a "natural pause" following my own stupidity. I have *never* had wood kick out when I was actually using the safety guards and paying attention...I think there is a lesson in there somewhere. :wink:

In all my years in shop class, I never met an "industrial arts" teacher who had all his fingers. That alone was enough of a lesson to give me an enormous amount of respect for all tools...but especially the ones with tails. I have my share of nicks and cuts, but I have yet to meet anyone stubborn enough to take off a finger with a hand saw. :shock:

--Stan Graves
10 T39S + 10 DR200 + 1 T48

Gregory East
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Re: What's so deadly about this contraption?

#7 Post by Gregory East »

Bill Fitzmaurice wrote:
Gregory East wrote: Can it spit a slice of wood at you?
It can. Kickback is the #1 source of table saw related injuries. With a panel cutting jig the rear stop prevents kickback, and it allows one to square panels as well.
I guess #2 is operating without the drop down shield thingie and slicing off the thumb
SoundInMotionDJ wrote: I have *never* had wood kick out when I was actually using the safety guards and paying attention
More than one guard missing from the Dave special? I only see the drop down thingie.

Does the rear stop make it idiot proof or just complacency proof? I guess I'm asking for a rundown of the right way to operate it and what happens when you don't do it the right way. Why does it kick back without warning? I've had a circular saw bounce back at me but nothing that I'd consider potentially catastrophic.
It looks like small stuff is the most likely to break and go flying and it would be a bad idea to be trying to cut right at the limit of the saw blade's height, but I read that you get the cleanest cuts there?
Harley wrote:I am a super cautious table saw operator and yet I still get surprises now and again.
Surprise I can handle, blood on the floor I cannot.

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Re: What's so deadly about this contraption?

#8 Post by gdougherty »

Read on some woodworking site that a cheap and/or dull saw blade makes things more liable to kickback. I use firm hand pressure or push blocks at all times and a good sharp quality blade. I favor the Freud Diablo's of the ones that the local HD and Lowes carry. The Porter Cable razors are also sweet blades as a combination rough cut/finish blade that cuts fast but leaves nice edges.

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Harley
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Re: What's so deadly about this contraption?

#9 Post by Harley »

SoundInMotionDJ wrote:Is that some kind of obscure sporting reference?
Image

Malcolm Marshall - West Indies Fast bowler.

You mean to say you've never heard of this guy? :mrgreen:

If you played cricket, this was the last bowler you'd ever want to see coming at you - his fast deliveries were absolutely devastating and I'd hate to have to count how many batsmens' toes he broke with his in-swinging yorkers.
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

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Harley
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Re: What's so deadly about this contraption?

#10 Post by Harley »

gdougherty wrote:...and a good sharp quality blade.....
Absolutely!

I have 80tooth tungsten blades - they cost around $NZ200 ( $US 130 ) but are more than worth it in the long run.
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

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SoundInMotionDJ
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Re: What's so deadly about this contraption?

#11 Post by SoundInMotionDJ »

Harley wrote:If you played cricket,
Is that some kind of "game" that I should have heard of? Is it like tiddledy winks? :mrgreen:

--Stan Graves
10 T39S + 10 DR200 + 1 T48

bgavin
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Re: What's so deadly about this contraption?

#12 Post by bgavin »

Cricket (like football) is most often played by guys holding beer bottles.
My biggest worry is that when I'm dead and gone, my wife will sell my toys for what I said I paid for them.

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Harley
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Re: What's so deadly about this contraption?

#13 Post by Harley »

bgavin wrote:Cricket (like football) is most often played by guys holding beer bottles.
You missed the 'seated in Lay Z Boys with ice cream in the other hand, screaming "put another log on the fire" ' :mrgreen:

.....isn't that how you guys do it up there? :D
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

bgavin
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Re: What's so deadly about this contraption?

#14 Post by bgavin »

Nope.

Up here, we first get really stuffed at the dinner table. Pass a napkin please, my face is dirty from the bloody steak. After that, we gather around the TV and root for our team. And everybody flashes that V-For-Victory hand sign when their team scores.

Yep... :mrgreen: that is how it is done on this end.
My biggest worry is that when I'm dead and gone, my wife will sell my toys for what I said I paid for them.

Gregory East
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Re: What's so deadly about this contraption?

#15 Post by Gregory East »

Circular saw arriving in a day or two, anything I need to know to not chop my fingers off?

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