/imtsbidwttrfmosipiaj(uyatin) = I mean this seriously but I don’t want to take responsibility for my opinions so I’m pretending it’s a joke (unless you agree then it’s not)
/l = lying
wow, these are great, i think we just need to add a few more tho (/l):
/cdsc = condescending
/ksmy = killing stabbing murdering you
/bait = baiting an unflattering or compromising response out of someone; setting someone up to look bad
I saw this video, and then noted that it was a theoretical thing and not real, so I yelled
“THEORETICALLY??? I gotta try this. Where’s the power drill?”
My friend immediately starts yelling NO! At me like I’m a cat eating plastic. He even correctly guessed that I was on tumblr and warned that he would turn off the internet.
Your friend was correct to stop you. There’s no way for this thing to attach to a pilot drill, however you construct it. It would be absurdly dangerous to use in reality. I mean look at that thing.
I don’t understand.
This is what a normal hole saw looks like.
Note the pilot drill in the middle. This keeps the hole saw centered during cutting so it doesn’t go everywhere. Without this, there’s a chance of the saw slipping about, and when a bunch of saw teeth are rotating nearby you at incredibly high speeds you do not want them skipping around everywhere, that’s how you lose a chunk out of your hand.
It’s technically possible, if you’re careful and have the right equipment and a death wish, to drill a circular hole without a pilot drill, but it’s inadvisable unless you absolutely have to and not something that an inexperienced driller should do. Generally, you use this thing, with the pilot drill on it. A hole saw has regular teeth and moves at a regular speed and the pressure when drilling stays about the same.
But that triangular thing? No fucking way. Look at how that bit is moving. The pressure is NOT the same. It’s all over the fucking place. Attach that to a drill and your drill is being pulled every which way. Attach that to a hand drill and you’ll win a Darwin award. Drills are using a lot more pressure and speed than it seems when you’re using them; I mildly sprained my wrist using one the other day drilling in a normal arse screw with a normal arse bit because the screw caught on something and stopped before the safety torque thingy could catch up. You do NOT fuck around with bits that provide shaky, unpredictable forces like that. You would not, ever, use a bit like that without a pilot drill. That thing goes on a massive, heavy duty, carefully calibrated piece of factory equipment behind a safety shield and nowhere else. In fact, I wouldn’t even use a bit like that at home *with* a pilot drill, unless I had the most stable drill press of all time. Absolutely never on a hand drill.
Okay, so we can use it at home on a really good drill press if we had a pilot drill, right?
Nope. Look at how it moves. It’s impossible to put a pilot on that thing. The bit has to cross over the middle to function. It’d collide with the pilot.
Do not build a bit like this, it’s theoretical for a reason.
We have multiple solutions to that problem, depending on what you’re trying to put the hole in and how big you want it to be. Some include:
Punch the hole
Cast a piece with a triangle hole in it already
Use a jigsaw, or similar cutting tool
Use a drill bit or similar tool designed for etching, with a stencil if need be, and dig your way down layer by layer
If you have ten billion years to spare, stencil and chisel
Carefully sized circular blade on an appropriately designed tool, lower into the material to make three cuts
Laser
Those bits that basically jackhammer a hole into wood
So, if this ever could work, the answer is that it needs to be in a press to work. No human hand could hold that steady, but a machine could… maybe.
The next problem is that this would put an ungodly amount of stress on the teeth of those gears. In order to work, you would need a very strong tool steel, and a very soft material. Most wood would probably be ok. I wouldn’t go any harder than aluminum. Then, you would have to use a very light touch, only removing a very small amount of material with each pass. Also, you gotta do this behind safety glass or something, because if that thing breaks in use, I don’t want to be anywhere near it.
So yeah, you could use this, but by “you” I mean a machine controlled by you from a distance like this is a fucking bomb that could go off at any second.
More practically, assuming that you can’t just punch the hole or use something like a water jet , you cut this with a round milling bit, and then use a triangular file to finish out the corners that would be rounded.
by the time i was a teenager i had developed a sense that every “why don’t we do things this way” Idea i had had probably been proposed by someone smarter than me and discounted by people smarter than them for good reasons. Unfortunately, the people in power in the united states apparently never developed this sense, so here we are.
In a country where the only real options are “Democrats” or “Nazis who will hurt everyone” the only moral thing to do is not only to vote for the Democrats but also do whatever you can to talk other people into voting for them too
When offered two dishes one of which is poison you don’t complain that the one that’s not poison is overcooked
I’m not sure why this is so hard for so many people to understand.
