Obsidian or sapphire

Next a paper saw blade

I think the two best solutions to get glass to not shatter would be 1. Smaller diameter blade (much less inertia and therefor stress on the blade) and 2. A method to actually control the rpm and spin it slower (just like what the foot pedal was supposed to do).

What "ramen + resin" mixture does one at least need to cut wood?

Cut Balsa wood instead

Which is impressive

Also add "(gone sexual)" at the end

Too funny 😂

Alternative alternative title: p h y s I c s

@@nikorek1470what why

That is genious

That was my thought to

heres an idea: education

you'll need to put it on a cold saw.

But then what's he going to use as a shield?

Do you think slowly bringing the blade up to speed would have helped? I was thinking it would. 🤔

@@cohcam2113 There are thee main lines of force. There is the main torque of the shaft attempting to rotate the blade around the axis of the shaft. There is also a centripetal /centrifugal force of the atoms of the blade wanting to continue their linear motion away from the axis while being pulled back into a rotational motion by rest of the atoms of the blade. Finally, there are rotation forces perpendicular to the shaft bending the glass in towards the shaft as a result of gyroscopic precession if blade isn't perfectly aligned with the axis of rotation (e.g. it's not flat or it's not perfectly perpendicular). At low speeds, the rotational force is the primary force as it tries to overcome to rotational inertia of the blade. As the blade speeds up, the centripetal/centrifugal forces and gyroscopic forces increase. Decreasing the rate of acceleration of the rotation of the axle reduces its torque. The other two forces are perpendicular to this and depend only on the overall rate of rotation and the geometry. The only way to avoid the disc pulling itself apart at high speeds is to reduce the final speed. This is why small grinding discs and even large metal saw blades specify a maximum RPM. More than that and the blade will both wobble violently and try to pull itself apart radially.

@@cohcam2113 Maybe if it was sharply snapping on and cracking at the start, or if it helped dampen vibrations. I think you're going to have the most trouble when the glass hits the wood, though.

then to make the optimal object you just get a drill XD @fgbhrl4907

There would be a certain amount of irony if they use a real saw blade as the handle flare

There would be a certain amount of irony if they use a real saw blade as the handle flare

Or they could just put a separate shield slide where the handle slides, making it so the gap is always closed..

Add an adittional guard that mounts to the handle so it travels with the handle. Also gloves

There's a screw that was rubbing against the blades, can see a good closeup at the end

Yeah. It totally wasn’t the cracks in literally the center of the blade lol

i was going to say something about this! kinda frustrating that he never did anything about that in this video.

Me and my dad make fishing lures out of balsa

@@CarXman1432 that's really cool!

Mine too

I can think of two possible meanings. But I don't know which was intended.

Me to haha

this was driving me crazy (on a side note it is are to pierce glass without having a crack form i have always used hollow diamond style hole saw with water flowing through it to flush out the glass as i go still a pain but i think the waterjet is just to violent)

@@wmose3694 yeah. I think you need to saw the center hole gently like you said.

333 👍

you would think something so obvious would be... well.. OBVIOUS

concrete sawblade

Cut the blade and then take a rotary sander to it to bring the thickness down on both sides. Combined with making the blade smaller to reduce the centripetal force and reinforcing the mounting point before the cut with the super tape to hopefully prevent any small fractures at the beginning, you could quite possibly end up with a blade that doesn’t instantly explode fragments of death.

😂😂😂😂😂 most hilarious comment

That made me think, ceramic could also be an option. Ceramic knives are also a thing, and they are more brittle, but pretty tough.

@@drantigon Definitely ceramic, but granite is not uniform and has grain boundaries which might be weaker than some of the grains, leading to crack propagation

Correction: use a prince Rupert's drop

Centrifugal forces will tear it open unfortunately. Maybe a different type of rock/mineral that's more uniform.

I was thinking a regular dimmer switch for lights would probably work and they’re a lot cheaper

@@GRosa250 Possible, but can a dimmer drive an 10 amp inductive load? I dont think most dimmers are designed to offer that amps. and a saw is an inductive load because of the coil in it, and that can trip certain protection circuit a variac, even a cheap one can push 20 amps.

Don't they also go past mains voltage too like its a q variable transformer

I thought tempered glass is harder, but more brittle. So the way is to use, on the country, a more flexible, less brittle material like translucent plastic.

@@tatianaes3354 then there is laminated tempered glass. best of both.

You ain't gonna make a hole in a tempered glass.

Tempered glass would explode into a million pieces as soon they try to cut a blade out of it on the pressure washer. Having said that, I would totally suggest them trying it. Would make a for a fun video haha.

Thicker in the center... I'm not sure how they would make that. Would be very difficult to cut properly.

why would the polarization of the glass matter?

@@CzarYe It makes it stronger in one direction.

@@drantigon Would have to do some glass work

lol, i love how me and you both said variacs. I managed to be like comment 10. But what I love about it, is we are both named Joshua, telling him to get variacs.

Saw has a brushed universal motor, a variac would definitely work for that.

Chooch is gonna chooch the pooch!

A variac will sort of work, but once you get to sufficient voltage it will still accerlate quickly. The speed of an AC motor varies with frequency not voltage, so a VFD (Variable Frequency Drive) would be ideal.

@TheMookie1590 great minds think alike. Josh's usually have great minds. Usually. I do dumb things sometimes.

It would be tough to have a grommet at the center and still center the blade so it doesn't wobble. At those speeds, you need a balanced and centered blade.

@@surferdudemi True but better then the bare glass on metal contact, may increase the longevity of the blade by a few times.

Bone saw? But can it cut through a femur in 28 seconds?

i commented to use a variac. but after someone else said light dimmer. I looked it up, and they are like 600 watts. Sadly wont work. and a saw is a high inductive load, it will kill the dimmer almost the second its powered on

This

I think duct tape should be duct tape. Everything else needs a new name

We all watched for Mitchell and Dan and now they're gone and the format has changed