Impossible pinball in a wooden cube DANGER EXTREMELY UNSAFE

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Sep 09, 2012


Impossible pinball in a wooden cube DANGER EXTREMELY UNSAFE
Impossible pinball in a wooden cube DANGER EXTREMELY UNSAFE thumb Impossible pinball in a wooden cube DANGER EXTREMELY UNSAFE thumb Impossible pinball in a wooden cube DANGER EXTREMELY UNSAFE thumb


  • This is one of my favorites.
  • The pinball in a single piece wooden block.
  • As you can see, there is no way that a pinball is gonna fit into that hole.
  • So let me show you how you can do this.
  • This wooden cube right here is about two and a half inches (all the way around).
  • ..but I think this one i'm gonna make two and a quarter.
  • and here is the size of a pinball (or at least the pinball that i'm going to be using).
  • For the holes, I'm going to be using a seven eighths inch spade bit.
  • You need to find solid piece of softwood. I'm gonna use poplar for mine, but I would bet that pine would work just as well.
  • If you can't find anything like that,
  • try checking on the bottom of pallets;
  • alot of times they use these for the bottom part.
  • Originally I wanted to use a nine ball instead of a pinball, but I couldn't find
  • a piece big enough for it.
  • Maybe in the future though...
  • Now, I want to get the insides nice and smooth with a drum sander.
  • It turned out alright...
  • This side got a little messed up, but that's because I should probably
  • have been using a forstner bit.
  • But it'll do just fine.
  • The prototype had a chamfer on it, but on this one I'm going to put a roumd-over.
  • I want this to look a little more round than it is, so i changed the quarter inch
  • round over bit to a three eighths roundover bit.
  • The bearing has been set in line with the fence.
  • That'll keep this piece from getting sucked in towards the router bit
  • At this point, you're probably just annoyed, and you want to know the secret.
  • But i'm not going to tell you until tomorrow.
  • Now I'm just gonna let it soak for about twenty-four hours.
  • See you later.
  • It's been twenty-four hours and I replaced the water that was in there
  • with hot water,
  • just in preparation for putting the bearing in,
  • and it's been fizzing like Alka-seltzer
  • for the last 10 minutes.
  • So I'm going to give it another half an hour
  • just to finish...
  • whatever it is that it's doing.
  • I'm going to use the vice to press the pinball into place,
  • so I'm coating the pinball
  • with mineral oil
  • to help it on its way, and into keep it from rusting over the next
  • couple days. I also made this PVC
  • sleeve that'll help push the pinball in.
  • To minimize the chance of splitting the piece while I'm pressing it in,
  • I'm going to be pressing it in through the end-grain.
  • Let me explain why.
  • Let's take a look at it up close.
  • Now let's take a look at it up really close.
  • Consider, by way of analogy, that
  • our block of wood isn't all that different in structure
  • from a bundle of drinking straws. In fact, when you look at wood under a microscope,
  • it looks very much like this.
  • Then, you can imagine that
  • our pinball passes through the end grain of the wood,
  • with a lot better...
  • alot easier than it would by being pressed directly through the center.
  • Likewise, driving a chisel
  • through the grain is going to be a lot easier this way,
  • or through the top of the end grain itself
  • than it would be to try to drive the chisel straight through.
  • This analogy also lets us understand why a cross-grain cut
  • is so much
  • harder to make than a rip-cut.
  • Now I'm gonna let it soak for just about ten minutes, just to help repair any damage
  • that might have been done when I pressed it in.
  • I don't want to dry it out too fast over the next couple of days, or else I run the risk of splitting it.
  • After about three or four days, when it's completely dry, I'll probably use mineral to
  • treat the wood.
  • And then, give it a nice sanding and finish it with shellac.
  • if you bring out the grain by (with) a nice finish, then its really apparent that
  • there are no seams in the wood,
  • and that really lends itself to a nice effect.
  • I really hope you enjoyed the video; thanks for watching!
  • I guess I should show you how to get the pinball back out...
  • Captioning by pocket83 :)

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If your comment was removed, it is because it was already covered by the following snappy answers to stupid questions:

-------"Freeze the pinball to make it smaller."-------
If by smaller, you mean a few ten-thousandths, then yes. But we would require the pinball to be 20% smaller, and that will not happen even if we could remove all of the heat from the pinball. That trick will not work for this application.

-------"Poplar is not a softwood, dude...
gymnosperm, angiosperm, et cetera."-------
No, Poplar (Tulipwood) does not have a softwood classification, but we aren't really talking about the structure of the tree's seed, are we? Here we are concerned with the properties of the piece of wood in question. A soft wood (two words) is recommended for this project- a piece of wood that is soft.

-------"Why does the title say 'unsafe?' Is it just for views?"-------
Not for views. It was a sarcastic response to the excessive safety criticism. The "impossible" part of the title was put in there for views.

-------"That's unsafe!"-------
Don't do it, then. I will concede that the table-saw scene was not the best way to make this cut, but if you didn't already realize that, you shouldn't be using the table-saw in the first place.

-------"Your fingernails are gross."-------
I have a rare condition known as nail biting, not that it should in any way concern you.

Must I really explain why I now remove these comments? The annotation has only provoked those who think that they are original by making the comment in spite of it. There has been more than 100 comments of this sort by now. *Edit:* Hundreds and hundreds by now. *Edit#2:* Perhaps now in the thousands. Real edgy.

-------"I was going to subscribe, until I read your comments. Instead, I disliked this video. Your awful personality forced my hand."-------
I am human, and so I do want your approval. I like to be liked, despite the fact that nobody seems to actually like me. Herein lays the paradox: I am willing to sacrifice being liked in the interest of accuracy. If you make a stupid claim, I reserve the right to pounce on it like a pissed off peregrine. Your ridiculous comments are fair game to me, and I prey on the weak. If that makes me unlikable, I will live with that. I don't want to be nasty or petty, and I want to preserve free speech, but I have learned that without moderation, comment sections tend towards a natural regression to the literary equivalent of somewhere around a stadium bathroom stall. I am moderator here, and I deserve to be, since I'm the one who made the thing you are commenting on. Free expression is being preserved here- MY free expression.
This is a fun and simple project.
People rarely (if ever) can guess how it is done.
*Fresh-cut wood may have a moisture content of more than 80%. That is nearly as much water as the mass of the wood itself! We often forget that the wood we use to make stuff has been dried like a sponge that sat under the sink for too long. Oh, and a sponge is made of cellulose, the same organic compound that makes up much of wood. One more thing if you are still reading: cellulose is the most common organic compound found on planet Earth. Think about that next time you are about to buy a sponge for more than a buck.

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