100,000 RPM Skateboard Wheel (World Record)

[@smartereveryday]

Let's do this right. I'm in.

[@gliixo]

YESS

[@AbananaPEEl]

POG

[@yeffreybeffrey]

Already excited for that video

[@ifroad33]

Yes yes yes yes!

[@arlynnecumberbatch1056]

FOR REAL??

[@imfrcd]

Another vote for the Slo Mo Guys... they use a range of Vision Research Phantom high-speed cameras, capable of shooting over 1,500,000 frames per second.

[@koreyhayden1368]

Haha I just made a similar comment. I said you guys should team up with the SloMo Guys, they just got that quarter mil phantom, it would catch it!

[@skie6282]

I think they got close to 2 mill once

[@gliixo]

Destin from SmarterEveryDay already said he's in!

[@thomasriding3194]

Bro...they know who Slo Mo Guys are...they're one of the largest channels on this platform... Not exactly a phone call away lol

[@gliixo]

@@thomasriding3194 Actually I tweeted at Destin from SmarterEveryDay about an hour ago, and he already said he's down. He even commented on the video saying so. You'd be surprised at how easy it is to reach some people.

[@xxSgtXioXxx291]

Holy crap if Destin and Waterjet Channel do a colab i will die happy

[@LivingWithGames]

You called it.

[@debadityanath4398]

destin means smartereveryday?

[@seldoon_nemar]

you need shielded bearings to keep the blast media out. you're not worried about the little bit of drag the seals create. also, if you cut a few flutes on it to so it makes a better tone, you can use the frequency of the sound to calculate the speed. peak audio frequency divided by the number of flutes. I'd also be really interested in seeing this pushed to attempted failure and then try different materials

[@koreyhayden1368]

Honestly I don't think any bearing assembly in this current day and age can hold up to 100k rpm

[@stevegredell1123]

@@koreyhayden1368 lol what like every turbocharger spins at >100k RPM. Now 100K RPM with the amount of force applied laterally by the waterjet, that's another question. Also they probably didn't balance this like a turbo spinning at 200k RPM would be balanced.

[@koreyhayden1368]

@stevegredell1123 ya thats true but those are "specialized bearings". I just meant your standard buy from an wuto parts store type bearing. Ya ones Ina turbo are meant to spin Hella fast

[@koreyhayden1368]

@stevegredell1123 also, quit being the guy that likes his own comments

[@Phoenix-ej2sh]

" if you cut a few flutes on it to so it makes a better tone, you can use the frequency of the sound to calculate the speed." Id' just like to point out for future posterity that this is how the Waterjet Channel invented their city destroying sonic weapon.

[@minefreak2000]

Glad to see the safety squints are being used guys! So glad you listened!

[@TranceMechanic7]

Testing different bearings to see which are best would be cool.

[@MrTurnermason]

yeah, better bearings

[@francoislebois]

I approve

[@stauker.1960]

i third this

[@kgsbowtie]

Get some high speed bearings. Possibly high load and high speed bearings depending on the force of the water.

[@122martin122]

And installing them the right way I guess

[@floydwordsworth9175]

0:55 arguably the most dangerous thing he ever could’ve done on a lathe XD

[@nicholascrow8133]

Yep, the chips in his hair mucking around was bad enough, but long sleeves and gloves made me wince

[@jacobcronk1844]

how in the world is putting shavings on your head "the most dangerous thing" you can do using a lathe?

[@InspectahPatio]

I almost ran downstairs and hit the STOP button

[@nicholascrow8133]

@@jacobcronk1844 small chance they could grab and pull you in, more chance of them grabbing and becoming spinning blades. But moreover it shows carelessness around the lathe. Honeslty though, the long sleeves are the worst bit. Yes, these are all issues that have a relatively low risk of happening, but you don't fuck around with lathes, this machine easily has the power to suck his arm in by a sleeve and spin him round until he becomes burger meat.

[@donthitmeimwoozy]

​​​@@jacobcronk1844 because a lathe can take the slightest loose material and use it to pull you in and turn you in to a red paste shishkebab.

[@Joshua-re6qu]

you're lucky that lathe didn't rip your hair out

[@TriMarko]

The gloves and long sleeves is a recipe for disaster. Latex gloves arent too bad since they will just rip but best to not wear any

[@hiddenInsight486]

Yeah, no shit... I cringed

[@ToxiChaos]

You guys don't understand, he had his Safety Squints, he was fine

[@Tetrini]

his hair is like 5 inches?

[@nicholascrow8133]

Came here for this! The chips on his head gag was bad enough, but the gloves and long sleeves made me wince

[@legion162]

Based on wheel diameter 60 mm @ 100k rpm works out at 1131 km/h, or about 700mph Did 60 mm because I don't the diameter of the wheel, so picked 60 as an average skateboard wheel from Google Edit Just spotted in the video it was a 3 inch diameter wheel, so works out @100k rpm, 1436 km/h or nearly 900mp/h

[@-Jethro-]

So the wheel surface was moving at supersonic speed. Wow!

[@nak_attak]

The very first waterjet video I watched on this channel was the first skateboard wheel one. You've come so far!

[@thomasherzog86]

by ear i would say the difference of the two tones was about a diminished fifth which is exactly halfway to an octave. since an octave is an increase of 100%, id say a diminished fifth is about 50%, so 70.000 plus 35.000 rpm.

[@WaterjetChannel]

I knew somebody would know enough about this kinda stuff. Epic 😎😎

[@markh.876]

Close but not quite. "In pythagorean tuning, the diminished-5th is mathematically (9/8)2(256/243)2 = ratio 1024/729, expressed in decimal form as... 1.4046"

[@anthrond]

Yep, since each octave doubles the frequency, equal tempering is an exponential scale rather than linear. Multiplying by 1.5 to go halfway between the two frequencies would be a linear scale. Mark H's answer based on the Pythagorean scale gives close to what the equal tempering result would be at ~1.4 times the lower pitch for a half-octave (diminished fifth), but Pythagorean is based on ratios rather than exponents; so in equal tempering, each semi tone is the lower frequency times 2^(1/12); a whole tone is times 2^(2/12), and so forth (adding 1/12 to the exponent for each successive half tone). So a half octave higher is the lower frequency times 2^(6/12) or 2^(1/2) or exactly the square root of 2, about 1.414, slightly different from Pythagorean tuning.

[@thomasherzog86]

fine, its 42% then and not 50%...but you guys dont seem to realize that my scale was an estimation. im not sure it was a perfect tritonus and the rpm also were more than my written 70.000. thats why i used the word "about" two times in my post.

[@markh.876]

@@thomasherzog86 Please be understanding as I am a long time sufferer of SIWOTI Syndrome.

[@ButterBallTheOpossum]

The way you walk up to it while its still spinning is honestly terrifying and so dangerous. That thing could explode at any moment

[@PatrickAdairDesigns]

That was nuts. Seriously that was spinning so fast!!!

[@domenicputti4228]

Based on the footage, it took 17 seconds for the wheel to go from 77000 to 0 rpm, so the angular acceleration was 4529 rpm/s. Assuming the angular acceleration was constant the whole time the wheel was slowing down, its peak angular speed, which was achieved 13 seconds before the measurement was taken, was 135,877 rpm.

[@rasimibraimov2420]

that means top rotational speed of 3073,5 km/h!

[@GoodWrench3k]

I would absolutely love to see Destin collaborate with you guys to figure it out. Side note: See about getting some bearings from a turbo charger. They can reach 100,000 rpm+ repeatedly. You might need to set up an oil feed by using an electric pump in a bucket of oil with a feed line and return. Or skip all that and just send it until the bearings seize or blow apart. Either way, I’m excited to see what’s next.

[@VapeTRMC]

this is when you guys need to collab with the slo mo guys so we can get a real speed test

[@hamboneneurosis995]

Your lathe use was top notch! 🤣🤣🤣

[@kasuha]

If you know the speed of water coming out of your waterjet, then you know your upper limit. The wheel's perimeter cannot go faster than that. And I'd guess you got pretty close to that in this experiment.

[@ScrapFatherScrapSon]

There should be a way to put your rpm measurement tool in a spot to take real time data. Also you should reach out to The SloMo guys . They’d love to do a collab with you I’m sure

[@koreyhayden1368]

So funny how many SloMo Guys comments on this video, I also said same thing them started reading comments haha

[@gliixo]

If not the Slow Mo Guys, Destin at SmarterEveryDay would probably do it as well!

[@koreyhayden1368]

@@gliixo true!!

[@gliixo]

@@koreyhayden1368 Destin already said he's in! That was wicked fast

[@koreyhayden1368]

@@gliixo awesome!!!

[@nilamotk]

You guys have wayyyyyyyyyy too much confidence in your safety squints and 20 gauge sheet metal guards... 😂😂

[@kkuhn]

Use ceramic bearings with tighter tolerance + seals to keep them clean

[@0815Skorpio]

why is everybody trusting chat GPT, IT DOESNT DO FACT CHECKING, what ever it spits out is mostly true, however it doesnt know whats true and what is false. it can be very wrong while sounding very confident, its just a glorified chat bot, it uses what sounds logical in a sentence it doesnt care if its wrong.

[@edgoodman1]

I swear this channel is like the good seasons of the office. I love it.

[@Baphomet-J.-Moon-Fetus]

I'd like to see what sort of RPMs you could get with a full, uncut wheel of really rock hard Italian Parmesan cheese. How you'd spin-up something quite that big, I don't know, but Hell, it'd be amazing... and the warmer weather is on the way, so you could do it outside if it got a little stinky.

[@koreyhayden1368]

Ya this needs to be explored more! The "SlowMo Guys" recently got the phantom that costs a quarter mil, that camera would catch all that, you guys should team up!!!

[@Anthonygreeen]

Safety Squints engage!!!!

[@tjg555]

Wish you could team up with the Slo Mo Guys. Pretty sure they'd love this idea.

[@jonathanhabib9265]

Can you cut grooves in the wheel to catch even more speed? (like watermills)

[@vintageludwig]

He could barely use the lathe without dying

[@ireallychosethisname]

seeing long sleeves used on the lathe makes me flashback to the shitty 90's vhs saftey films where peoples limbs pop off n shit.

[@RandomBogey]

5:35 Build like a claw mechanism that pinches it on the sides, like you would with your hand if you were spinning the bearing in between your fingers, but have the mechanism release it at peak 100k rpm onto a track or something to see how far it’ll roll on its own.

[@adrianadair9891]

Yoooo best video in a while 🙏😎❤️

[@calvinmone3265]

You should contact the slow mo guys and see if they could help.

[@davidfordyoyoguy]

This reminds me of one of my 1st jobs over 20 years ago. When cleaning the "meat room" at the local grocery store, I would have to take apart and rinse the meat grinder. They had giant steel discs that could get changed out for various types and textures of meat. They have grooves on the edges to lock them in place so they don't spin in the machine during use. They spin when you set them on the floor and hit them at just the right angle with a power washer. Those grooves that keep it from spinning... I always imagined someone trying to pick it up or touch it when it was spinning and how much damage those grooves would do. The sound whined up just like this video. Truly powerful and terrifying.

[@Christian-cz9bu]

If you're looking for high-speed RPM items, dental handpieces, (like used for grinding cavities) with no load can spin near 400K RPM. Under load, they still can spin near 250K RPM.

[@Sharpless2]

they can actually reach up to 850000 rpm

[@ericcleland817]

Hey guys. I was wondering if you had thought about using something like a felt style bearing instead of steal? I live in Arizona, and a popular choice for cooling a home is a swamp cooler. The fan unit inside of the cooler has oiled felt bearings because regular steal bearings would fail far too quickly due to the nonstop moisture inside the cooler as water is evaporated. The felt inside the bearing does not move, but is lubricated using oil to allow the fan to freely spin. This would be a cool test you guys should test out, and even test the felt bearing setup using different thickness and grades of lubricant oils. Badass video thanks

[@EyesOfByes]

Just get SlowMoGuys stay at your place for a few days and y'all have content for a year :D

[@scorpsamus]

Given a 3inch diameter wheel, it's trucking along at ~893MPH 3pi=9.425nnn inches 9.425nnn"x100,000rpm=942,477 inches per minute 942,477÷63360=14.87 Miles per minute 14.87x60 =892.497MPH

[@mrmatt2525able]

That’s awesome, be cool to see more but don’t die! There is a lot of energy there, if that aluminum fails it will be deadly

[@katana-killer1588]

really sad that the original duo aint there no more they startet this but this aint the same

[@Dog-Girl-Defect]

Gotta get ceramic bearings

[@Sharpless2]

those usually arent good for high rpm. Anguzlar contact bearings are their best bet. Needle bearing would also be good tho.

[@Lilith-Rose]

Might want to try zirconia full ceramic bearings, see how they hold up, they have a lower friction coefficient, are much harder than steel and work better at higher temperatures. The downside is they are more brittle and cost more but for an application like this with ridiculous rpm that looks to be essentially burning out those unlubricated steel bearings from the excessive friction full ceramic could offer you an edge in both performance and durability

[@Lilith-Rose]

Some ceramic bearings are even advertised as being suitable for load speeds of 100k rpm so I'd highly recommend looking into them, and ceramic or ceramic hybrid bearings tend to be what's used for dental applications where operating speeds can be as high as 500k rpm (although they are smaller In size and used in air turbine driven drills etc)

[@enveloreal]

The math you asked for, assuming a wheel diameter of 70mm: 70mm diameter*3.14159 = 219.9113 mm circumference. Moving 219.9113mm per rotation * 100,000 rotations per minute = 21991130 mm per minute. Multiply by 60 minutes per hour = 1319467800 mm per hour, which equates to a ground speed of about 820 miles per hour. Assuming a 3 inch diameter the speed comes out to around 892 miles per hour.

[@user-rs8zg8ey2b]

I hit 1300mph, 3.8 million rpm at 24 million Gs, see my video posted above.

[@RandomKerbalizedGuy]

4:14 bro's so fast it's jet turbine itself 💀💀💀

[@CarLoverPhotography]

Do it again with ceramic bearings

[@azzabouy8243]

that trailer park boys clip was perfectly timed :)

[@mottomanic]

The speed of water leaving the nozzle of a water jet is between 680-1021 m/s. The diameter of a skateboard wheel 48-75mm. You whell looks a bit larger, but I'll use 75mm. 680m/s*1000=680000mm/s/75=9067 revolution per second*60=54400 rpm. For 1021m/s you get 816800rpm. With a 48mm wheel you get 1276250 rpm. This is at 100% efficiency. VERY CLOSE

[@shiningstaer]

Y’all keep bringing me back! I love this channel

[@byugrad1024]

The correct answer for ground speed of appx. 3" skateboard wheel at 100,000 rpm is around 900mph. The second answer was off by over a factor of 10, which is roughly the number of inches of circumference of the wheel. Sometimes you need to check even the work of AI.

[@RetroScythe]

I wonder if a glass wheel would explode or not, its very hard but the vibrations might break it. You could grab a glass ball and a glass drill bit to drill a hole for the bearings, you could also try drilling the hole the same size as the axle and putting it on without bearings to see if that works, it might even melt the axle which would be cool

[@keithjurena9319]

Glass absolutely stinks in tensile strength. The issue here is tensile strength to density ratio.

[@Sharpless2]

glass would absolutely explode. It would basically become a sandpaper cloud bomb.

[@RetroScythe]

@@Sharpless2 even more the reason to try it

[@Sharpless2]

@@RetroScythe i couldnt agree more

[@TheMeditron]

you having the loose shavings on your head hanging near the running lathe gave me a lot of anxiety

[@matthewgray2789]

Sounds like Finn screaming from adventure time

[@pioneerAv]

Use some fancy CNC mill to make it a pelton wheel shape. It might capture the water energy better and go faster. Also the little scoops might fly off at high speeds, that would be cool

[@dominiklukacs7677]

Love the music!

[@wyattmuehr196]

I think you guys need a SloMoGuys crossover episode

[@DJSekuHusky]

I noticed one of the urethane wheels you tested had ceramic bearings instead of steel ones, and it looked like the race covers helped keep moisture out and held the bearing together. I'm not entirely sure if the steel bearing failed due to water intrusion displacing grease or if the thermal properties of the steel traveling at that speed cause the bearing to expand and spit out the balls, but I bet the ceramic bearings won't expand that much (or that quickly), and it should allow the wheel to spin up faster with less resistance. Just a hypothesis; would love to see it tested. I bet if you took temperature readings of the bearings, the ceramics would be cooler than the steel ones at full send.

[@francoisdewaal2644]

You need "journal" or "white metal" bearings to go fast. There is no contact between stationary and rotating surfaces. The rotating shaft runs on a oil film. Old technology that still works very well

[@matthewmoore5808]

I've been a machinist for over 20 years and I've NEVER seen someone use razor blades as a cutoff too. Crazy.

[@gregwright6281]

This channel is badass

[@Brouzouhf]

You should call the SlowmoGuys!

[@grayfoxzez7631]

You read my mind

[@imfrcd]

@@grayfoxzez7631 me, too.

[@jimbothompkins]

The explosive fart reverb at the end was just what I needed

[@guystucker4738]

Careful with the long sleeves around a lathe. And while Nitrile gloves will rip pretty easy they can still grab and pull your hand into the work piece or chuck.

[@JasonHalversonjaydog]

need to contact "the slow-mo guys" channel, they have insanely slow motion cameras. i dont know if they rent them or own them but they've done extrememly slow motion shots

[@maglen69]

Safety gear? We don't need no stinking safety gear! We're blowing things up!

[@ipadize]

is it possible for you to add an air bearing for the aluminium wheel? that would probably make it run so fast that it may explode

[@UtahShark8798]

No

[@preludedude4765]

If you want the best results you'll want a journal bearing with a flow of oil to suspend it on the bearing. Similar to a crankshaft in a piston engine. Otherwise shielded needle bearings are probably the next best and easier choice

[@greyface3055]

Tip for you guys at Waterjet Channel, mount a wifi tachometer on your junk so you get real time RPM, instead of risking your life and being to late to measure.

[@mstringham]

The “do it right” bucket is appropriately placed

[@seanmcclain94]

Love seeing the waterjet again. Try using needle bearings instead of ball bearings.

[@bigfan6016]

Amazing! Loved the pitch getting higher and higher.

[@UtahShark8798]

Your ears are going to get parpused

[@FarmAlarm]

Pretty sweet project

[@3ngi_n33r]

I immediately like this channel. 👍🤨

[@Mercenary1964]

Would it be possible to set a magnet into the side of the wheel and read the rotations with a hall effect sensor?

[@user-rs8zg8ey2b]

Yes, easy. I use a hall to trigger my setup to 3.8 million rpm, 24 million Gs, video posted above.

[@KentWestergaard]

You should make holes in the wheel, like the old powerball. They did a screamer version that would go louder than regular powerballs when they reached high RPMs.

[@itzsofluffy27]

Are Dan and Mitchell still there? Or am I missing something.

[@shanemeyer9224]

That fart at the end killed me for some reason lol

[@ChronicSkater]

Just surround a good pro skate wheel with a titanium outer shell im sure you could get a colab going with powell for a free box of wheels and bearings or another skate company then protect the wheel with a metal shell and you got the fastest spinning actual skateboard wheel

[@ChronicSkater]

Maybe ask a local skate shop for some free gear and you will promote their establishment win win

[@ChronicSkater]

Don't know if you are using speed washers last video I didn't see any this time didn't see you swap out the wheel and put nut on but those little washers keep bearings from rubbing against nut and hanger of trucks

[@ChronicSkater]

Before comps pro tip to soak your bearings in speed cream you will roll longer for sure not sure about it improving top speed just your coast

[@davidmundy8861]

i wonder if a deck spacer under the trucks would get you more speed with soft wheels. it looks like the wheels only hold up until they expand enough to touch the deck

[@prestonfaceman]

if you can find a little better bearings I would pop the seal off and put a few drops of motor oil or other light oil and re install the seal. If it doesn't help lube the bearings that little bit more it should provide a good little smoke show when they fail and begin creating heat or self destruct

[@MeriaDuck]

At 100kRPM, the G-forces are quite something, nice work! Please be careful with dangling hair/clothes/etc around lathes. It killed a relative. Over thirty years ago and I still remember.

[@CreepyChappy]

Use sealed bearings put washers in front and behind

[@Smucklz]

I could be wrong cuz I don't have a lathe, but something tells me stacking razor blades to use as the cutter is not what you're supposed to do

[@zxmusefabrication6134]

That wheel looks to be about 5 inches in diameter. Thus the radius is 2.5 inches, and at 100k rpm that means that at the outermost edges the wheel experienced 710,000Gs. At that g-loading, a sheet of standard A4 printer paper would weigh 3,550 KG, or slightly more than 3 and a half metric tons. At 5 grams of weight under Earth gravity, when under 710k Gs, you get over 35 kN of force, which is enough force to lift two Toyota Camrys at 1m/s^s of acceleration. Aka, a lot of force.

[@DMPthebox18]

Maby got to call slo mo guys

[@celanis7164]

You guys should team up with the slo-mo guys. Watch violent deconstructions happen at really high fps :D

[@seanman6541]

EDIT: Just realized you guys already did this in a later video so this comment is redundant, but I’ll leave it here anyways. A little late now, but there actually is a simple way to calculate the exact speed (RPM) of the wheel using the sound. The rotating wheel (more likely it's bearings) will create a certain number of sound waves, and just like the tachometer counts the number of times the light gets blocked/reflected in a certain amount of time, we can count the number of sound waves the wheel/bearings produce. I fed the audio from the video at the moment you took the measurement with the tachometer into a spectroscope (FFT) and determined the sound waves produced by the wheel rotating to happen around 879 times per second, or 879Hz. At the peak speed, the sound is about 1277Hz. 879 times 60 yields 52740 times per minute. Multiply 1277 by 60 and we get 76620 times per second. Divide 77329 RPM by 52740 and get 1.466. So for every sound wave, the wheel rotates 1.466 times. Multiply 1.466 by 76620 and get 112325. So the wheel was spinning at 112325 RPM at it's peak.

[@jamesterry544]

That’s badass ! I wanna see more

[@MStrong95]

Sounds like you need to collaborate with the Slow Mo Guys or Smarter Every Day. Pretty sure they have access to better cameras for slow motion.

[@kylekelley9524]

I think it would be kinda cool if you made four wheels and put them on a skateboard and see if the aluminum wheels are better than regular wheels

[@PrismZet]

Oh jesus lol, You really need like some bulletproof vests and blast shields while testing that wheel. Maybe you could do some kind of braided wire or nylon cable that's wrapped/welded and soaked in resin to get a super tough wheel that won't explode. Reach out to the slo-mo guys or Destin to collab with slo mo stuff, i'm sure they'd be happy to cut some things for fun.

[@hectorsalazar5584]

nice vid. maybe try to get some greaseable and or oil fed bearings with rollers instead of balls. used on commercial production conveyor belts. you may spin longer duration and even higher rpms, but watch for metal fatigue from the pressure of the jet.. just a thought.

[@wmden1]

Needle bearings would hold up better than the roller bearings. Use some light, synthetic motor oil, which shouldn't sling out of the bearings, and a jet of air to keep them cool. The light, but strong aluminum is probably the best material for the roller.

[@StumpyBuilt86]

Id say bring smarter every day in as well as the slo mo guys. They have phenomenal slo mo cameras. Plus having a nasa engineer would be great. It would be a pretty sweet collab.

[@thekillercardinal]

that pitch shift was insane

[@Durf]

What about something simpler with less moving parts? Here's an idea: A metal cylinder like the one you have, but cut it in half (split the oreo). For each half, make the cuts on the lathe shown at 1:40 of this video (small hole all the way through, larger area for a "bearing" that doesn't go all the way through) Also for each half, drill 6 more holes within a hole, in a hexagon pattern around the center; this is to bolt the 2 halves together with 3 bolts for each side so it's balanced. A custom skateboard axel is needed; a thin rod with one part that is thicker to pretend to be a bearing and fit inside the enclosed wheel (wheel is built from both sides, around the axel's lump) You could weld a ring bearing onto the axel so it doesn't move or anything, but that might be off center, or machine most of a thicker rod away, which is then wasteful; the idea is that "lump" must be sturdy and as circular as possible, centered with the axel itself. Then just slather the best lube / grease all up in there, slip on both sides of the wheel halves and bolt it shut around that lump on the axel. No bearing, just the metal cylinder rotating around some greasy lump on a stick. Less moving parts = less vibrations = more speed potential without breaking something

[@CrazyNerdInventor]

1:05 welcome back to an episode of "shit you *really* should not do"

[@XR7810FOX]

4:46 Not only is it faster than a jet engine. It actually sounds like a jet engine xD

[@treverbooker2956]

Try using a sealed graphite bearings Thanks for all your guys hard work I enjoyed the video

[@FreekingAwwsome]

@Waterjet Chanel how about brass and ceramic for your bearings

[@nicholascrow8133]

You should team up with the slo mo guys to show what long sleeves plus a lathe can do... Lathes are no joke, respect them. You can get away with mucking around/long sleeves a thousand times but you only need to get caught out once...

[@alandavis5820]

Recommend sealed bearings, or maybe even some sort of magnetic bearing (superconductor and permanent magnet maybe?). As for the camera you should hit up the Slow Mo Guys for a collaboration.