How Fast Can We Spin A Titanium Skateboard Wheel?

What would you guys suggest on how to get our RPMs higher? Our next three strategies are to try lighter materials (magnesium or carbon fiber), hollowed out wheels, and finally smaller diameter wheels. At this point those seem to be our only bottle necks, anything we’re over looking?

have you calculated the water speed to know if with this pressure it even possible to acheave soun barrier

Never heard of a paint pen? Geez Good video but you guys are trying too hard to be funny. Relax and have fun with it..

Maybe try to make a whee out of Carbon ceramic that use in racing disk break and then bearing system with pneumatic graphite bushing?

The wheel could spin multiple times between each frame.
The wheel could reasonate at a different frequency than the rpm. Kinda like engine can go 3000 rpm which causes a 20hz resonating panel in a car

Speeds and feeds are how you cut titanium

Turbochargers can reach like 160,000-180,000rpm.

You need to go for a record here. All you need is the High Speed Channel dudes to set up there camera equipment. Then make a ceramic or jewel bearing or something. You figure it out, your the geniuses.

Try with tungsten

maybe use a acrylic pen to help measure it and make the surface more rough

Finally, someone tackling the BIG questions!

hand vs water jet

A homestar meme?-? That website was meme before meme was meme. Good times!

The sound frequency must also indicate rpm?

This is chicken feed, the drill spindles for PCB drilling machines go upto 300,000 rpm with no problems.

It's a good thing you didn't bolt your lathe to the floor.
That would make everything so much easier but we don't like it to be easy, do we?
The more it hurts the better the chance of a ticket to the Google afterlife.
One question, can I clip my toenails with that water jet?

How about a wheel of zirconium. Heavy and more dense as well as strong.

What about giving it lateral grooves, think paddles, but they don't need to be too aggressive with such a hard material.

When you break the sound barrier the water should come off the wheel the other way.