Un-Safe way to make Domino tenons

[Packard]

I have literally seen what a missile launcher this can be. It is just as bad as a table saw kickback.

Ambush accident.

It is intuitive to keep your hands away from spinning blades. But intuition gives no warning about kick-back. Someone has to teach you about that.

I’m self-taught on the table saw. I read about kick-back and was wary of it.

I never read about kick-up from feeding short pieces between the blade and fence. The piece was over an inch wide, and about 6” long. Kicked up and sent me to the emergency room, where the doctor removed the rest of the torn fingernail and gave me a tetanus shot.

Never saw it coming.

Once you are wary of trapping material, you should be OK.

I read a book that suggested mounting two rip blades in a table saw with spacers so you could rip narrow strips efficiently. I never tried it. It seems like a doubly risky kick back situation. Especially since the rip blades shown were carbon steel with no carbide tips. Making it more likely to bind.

In any case it is the responsibility the experienced to warn beginners of risks.

 

[Crazyraceguy]

Ambush accident.

It is intuitive to keep your hands away from spinning blades. But intuition gives no warning about kick-back. Someone has to teach you about that.

I’m self-taught on the table saw. I read about kick-back and was wary of it.

I never read about kick-up from feeding short pieces between the blade and fence. The piece was over an inch wide, and about 6” long. Kicked up and sent me to the emergency room, where the doctor removed the rest of the torn fingernail and gave me a tetanus shot.

Never saw it coming.

Once you are wary of trapping material, you should be OK.

I read a book that suggested mounting two rip blades in a table saw with spacers so you could rip narrow strips efficiently. I never tried it. It seems like a doubly risky kick back situation. Especially since the rip blades shown were carbon steel with no carbide tips. Making it more likely to bind.

In any case it is the responsibility the experienced to warn beginners of risks.

Responsibility is kind of strong, but I do agree, it should be that way.

 

[luvmytoolz]

I have literally seen what a missile launcher this can be. It is just as bad as a table saw kickback.

The Vasectomiser 2000!

 

[PaulMarcel]

The Vasectomiser 2000!

Oh man, that's nuts!

 

[Packard]

0

Responsibility is kind of strong, but I do agree, it should be that way.

If you see someone, even a stranger, doing something very risky, you won’t be a busy-body and give them fair warning? If I don’t do that, and I later find out that they had an accident because of that issue, I would feel very bad about my neglect. But that’s me. Everyone is different.

However, I do think it is a responsibility. I think it goes beyond the urge to educate.

One time, I was driving and I saw the passenger door on the car in the next lane was not properly latched. I tooted my horn. The passenger was a young woman. I explained that her door was not properly closed. She aid, “Just how many people have you seen fall out of a moving car?” And I replied, “Just one.”

She opened and then re-closed the door and I gave her a thumbs up.

Potential headlines: YOUNG WOMAN FALLS OUT OF MOVING CAR. PACKARD NEVER WARNED HER!!!

Note: I actually never saw someone fall out of a moving car. That mainly because I was the one who fell out. (Low speed, so just minor scrapes and bruises. I was about 8 years old at the time.)

 

[Crazyraceguy]

0

If you see someone, even a stranger, doing something very risky, you won’t be a busy-body and give them fair warning? If I don’t do that, and I later find out that they had an accident because of that issue, I would feel very bad about my neglect. But that’s me. Everyone is different.

However, I do think it is a responsibility. I think it goes beyond the urge to educate.

One time, I was driving and I saw the passenger door on the car in the next lane was not properly latched. I tooted my horn. The passenger was a young woman. I explained that her door was not properly closed. She aid, “Just how many people have you seen fall out of a moving car?” And I replied, “Just one.”

She opened and then re-closed the door and I gave her a thumbs up.

Potential headlines: YOUNG WOMAN FALLS OUT OF MOVING CAR. PACKARD NEVER WARNED HER!!!

Note: I actually never saw someone fall out of a moving car. That mainly because I was the one who fell out. (Low speed, so just minor scrapes and bruises. I was about 8 years old at the time.)

I'm more of a legal/analytical type, where words have meaning. To me, "responsible" carries more weight than remorseful afterthought. That was the point of should, meaning not required

 

[Packard]

I'm more of a legal/analytical type, where words have meaning. To me, "responsible" carries more weight than remorseful afterthought. That was the point of should, meaning not required

Yeah. I was not talking legalese; I was thinking “how would I feel if my neglect lead to a catastrophe”?

For example:

I was on line at the shopping mall to get lunch, probably 25 years ago.

A man, his wife, a young boy about 6 years old, and a baby stroller with a few-months-old infant, were all ahead of me on line.

The 6 year old was looking at the stroller and then looking up at his parents repeatedly. It was so obvious that I wondered, “what is going on here”?

And then I found out.

As soon as his parents were both looking away, the kid reached up under the carriage and pulled at a lever. The infant tumbled to the ground. Both parents “yelped” and picked up the baby. The mother said, “We need to buy a new stroller. This is the third time this happened.”

Then the dilemma: Do I tell the parents that the 6 year old is trying to kill his younger brother and thus deeply offend them? Or do I ignore it and hope for the best?

I said, “There is likely nothing wrong with your stroller. Your son watched for when you both were looking away and then reached under to pull on that lever. Then the baby fell.”

The kid denied it. The parents were furious with me. And I shrugged my shoulders.

My test: Would I be able to sleep soundly later that night or would that image play over and over again in my mind. I was comfortable with what I said. I felt it was my responsibility, emotionally and morally, if not legally.

 

[luvmytoolz]

@Packard All you can do is tell them and walk away, then it's up them how they want to deal with it.

 

[Packard]

@Packard All you can do is tell them and walk away, then it's up them how they want to deal with it.

Yeah. The kid needs professional help.

But not telling them, would have destroyed my sleep patterns for weeks. So, in a sense, it is all about me.

 

[luvmytoolz]

Yeah. The kid needs professional help.

But not telling them, would have destroyed my sleep patterns for weeks. So, in a sense, it is all about me.

When I grew up everything was always about consequences. We had the smarts to know what would push the boundaries and generally acted accordingly, with the expected consequences being a calculated risk.

The actions of that kid and the reaction of his family definitely seem to indicate a lack of consequences.

 

[Packard]

When I grew up everything was always about consequences. We had the smarts to know what would push the boundaries and generally acted accordingly, with the expected consequences being a calculated risk.

The actions of that kid and the reaction of his family definitely seem to indicate a lack of consequences.

Or he’s a psychopath and does not want to share the attention of his parents with anyone.

 

[jgrout]

While it may not be the way that convential wisdom suggests that you should bury the bit in the fence I am of the opinion that the key that has been completely missed in thie scenerio is that the "fence" set up is actually set up to run the stock from the left to right which makes the cutter run in the open space (closest to the operator) which is actually making the cutter turn into the stock. This is perfectly acceptable, considering the setup Watch it again and you will understand that while the feed is unconvential it is technically still correct way to feed the stock when reversed

 

[MacBoy]

This is perfectly acceptable, considering the setup

I understand your point.

To learn, and to echo CRG’s earlier statement:

Will this be a potential missile launcher?

 

[Packard]

I routinely “trap” narrow strips between the stock and the fence with no issues because I make a special sacrificial fence.

I learned this technique from Fine Woodworking magazine.

When I am making a box with mitered corners, I first cut the sides to size (outer dimensions).

Then I cut the miters against the sacrificial fence.

I cut a relief in the fence about 5/8” high and about 3/16” to 1/4” wide. I then slowly raise the saw blade on my table saw (set at 45 degrees) until the tip of the blade is buried in the sacrificial fence. Since the scrap is smaller than the relief I have cut, the material never actually gets trapped.

However, I always stand so that if a piece does get launched, it will miss my body. But mostly the piece just rattles around until the cut is complete. It is an easy way to make mitered corners.

I am trying to mentally visualize the router setup to see if there is anyway to make that setup safe in a similar way. My conclusion is to simply setup a simple fence and push it along with a push stick. Perhaps a shaper with an automatic feed could do this. I would not use the setup pictured in the video.

P.S.: My spell checker replaced my correctly spelled “video” with “bistro” (the last word in this post. I am shaking my head as to how it got there.