Building a SPEED Hyperloop
Vložit
- čas přidán 24. 08. 2023
- Get 3DEXPERIENCE SOLIDWORKS for Makers (20% Off $99USD/year!): r1132100503382-eu1-my3dexperi...
Learn more about 3DEXPERIENCE SOLIDWORKS for Makers: discover.solidworks.com/3dexp...
Massive thanks to Flight Rail! www.flightrail.com/
👉🏼 Patreon sign up / jameswhomsley
👉🏼 More info about projects projectair.co.uk/
👉🏼 Follow me on Instagram / jameswhomsley
⬇️ Amazon affiliate links to help you make your own projects: ⬇️
(these help grow the channel - every purchase gets me a small percentage of the sale, but it costs you nothing!)
3D printers
➡️ Beginner printer! Ender 3: amzn.to/3Dyd7lj
➡️ Ender 3 V2: amzn.to/3Oh9mFY
➡️ High speed printer: amzn.to/3KeSZbu
➡️ Ender 5: amzn.to/3DwkhXc
➡️ Favorite printer! Bambu X1: amzn.to/3QepQkt
➡️ Beginner Resin printer! ANYCUBIC Photon Mono 2 amzn.to/3OuOTyp
➡️ Favourite Resin 3D Printer! Creality Halot Mage amzn.to/43Cwxju
Drones I like
➡️ Mavic Air: amzn.to/3Q8rcgM
➡️ Mavic 3: amzn.to/3DuYcZ3
➡️ Mavic 3 Combo: amzn.to/3rMdcPJ
➡️ DJI FPV Combo Drone amzn.to/3ObWalo
CZcams Camera Gear
➡️ Main Camera 1 amzn.to/3KcRpXy
➡️ Main Camera 2 amzn.to/3YfzGEY
➡️ Mic amzn.to/43MTQqS
➡️ Tripod amzn.to/3rIewDg
➡️ Lights amzn.to/3qaDjPF
Action Cameras
➡️ Favorite! Runcam (small orange camera): amzn.to/44YI6ma
➡️ GoPro: amzn.to/3DuRkLd
➡️ Osmo: amzn.to/3rKoWlM
➡️ Memory card amzn.to/47hJWRc
FPV
➡️ DJI FPV Combo Drone amzn.to/3ObWalo
➡️ Micro VTX camera: amzn.to/3Qg4LGE
➡️ Runcam Wasp Micro Digital FPV Camera: amzn.to/44MwfrF
➡️ Beginner FPV drone: amzn.to/3QgUTMC
➡️ DJI Digital FPV Unit for FPV Drone amzn.to/3DOFPP7
PC
➡️ MacBook Pro: amzn.to/44F2DfH
➡️ SSD for editing footage from: amzn.to/3O9RXyT
➡️ NAS for storing footage: amzn.to/3q3SWbI
Essential Tools
➡️ Glue gun amzn.to/3Dt26Sc
➡️ Jigsaw amzn.to/3Qa0Z1p
➡️ Drill amzn.to/3Y7nRR8
➡️ Drill bits amzn.to/44Iq0oD
➡️ Bench Drill amzn.to/44CcB1s
➡️ Heat Gun amzn.to/45ky1QT
➡️ Soldering Iron amzn.to/3Dt2nEI
➡️ Rotory Tool amzn.to/3rJZMUf
➡️ Mitre Saw amzn.to/472Co4t
➡️ Saw Horse amzn.to/43HshPB
Big thanks to Andrew Applepie for the music used in this video - / andrewapplepie
DISCLAIMER: This video is purely for entertainment value. Personal use of video content is at your own risk. Recreations of experiments, activities and projects are the sole legal responsibility of the person(s) involved in replicating them. I can not be liable for any information or misinformation, wrongful use, damage to personal property, death or any circumstances that result from replication of any projects seen. Be safe! - Věda a technologie
![[柴犬ASMR]曼玉Manyu&小白Bai 毛发护理Spa asmr](http://i.ytimg.com/vi/0TsXQ7z2Dh4/mqdefault.jpg)
The problem with aerodynamics and just fluids in general is they don’t scale linearly like distance or speed do.
I was about to say just this. You can’t really scale down speed like that when the laws of physics you’re relying on don’t apply at supersonic airflows.
@@matthewferos yeah, the best way I have heard it described is that even if you scale the model the fluid's atoms and molecules stay the same size.
In a more mathematical way, a lot of the aerodynamic equations involve squares of velocity or similar and hence do not scale linearly, like the drag equation and can end up with scaled down models requiring a higher airspeed to accurately simulate the real model. Couple that with the scaling of surface areas and volumes and it complicates it even more. If you take a square and a half scale model of it the surface area decreases to a quarter.
So the scaling of aero and fluid dynamics effects are very complicated.
Just as an example with this the velocity is much lower and the surface area is much lower so the drag will be much lower. The only way to simulate a real train like this is to greatly increase the velocity.
as well as friction. it's minimal, but it is still these forces increase exponentially with scale.
Particularly the speed of sound. The drag increases significantly in the transonic region
@@conorstewart2214 Technically, squares and arbitrary powers are still linear algebra and it should be possible to work out a satisfactory though not exact scaling formula. What definitely isn't linear is what happens with transitions from laminar airflow to turbulent airflow to supersonic airflow around the whole thing. You'd need a different formula for each laminar-turbulent-supersonic flow transition between small and full scale models.
Tape the sides of the tube with tape, make a vacuum inside, break one of the sides, and you have a real supersonic train, not a scale model supersonic one. As in a pingpong balls cannon.
This here, foil disks are easy to perforate and you'll make that train a missle.
This is what I'd assumed he'd done from the thumbnail.
Won't go nearly as fast as a ping pong cannon as they really rely on a very lightweight projectile, but it'll still go fast!
Was dissapointed he didnt do this
Like the baseball ball cannon that Smarter Everyday made
@@MrTaz0079got the link or title name for that video?
I think its not gravity that centers the train wheels. Its the different diameters. If its not centered, the bigger diameter travels more, than the smaller. Its like self steering.
Exactly, that triggered me as well
yeah it's because the wheels are conical so it self-centers, plus it doesn't need a differential to steer
Fans of BlondieHacks, assemble!
Railfans in general. As a kid I had a book about trains and railroads and it had a whole section about the conical shape of wheels. I can't have been the only one.@@SuicideNeil
@@Zach476it has nothing to do with gravity or centripetal force, it's due to self steering because when the wheels are not centrally on the rails the come shape means the outside wheel has to travel faster, i.e. covering more distance, i.e. straightening the train.
You can't actually have a "scaled speed of sound" because aerodynamics works completely differently at transonic speeds, something you cannot simulate at a scale speed and it would definitely affect your top speed
Adittionally I think there is a limit to how fast you will ever be able to achieve with an air pressure driven vehicle like this due to choked flow, essentially once your vehicle in the tube reaches mach 1 the air flowing into the end of the pipe will not be able to flow in any faster to fill the void behind your vehicle and will create a drag force that limits your top speed to around mach 1, no matter how high a vacuum you can draw at the other side of the vehicle. This effect will only happen at actual mach numbers though as again mach effects do not scale
This is done in wind tunnels by changing pressure, I think? So the scaled model is in an atmosphere that matches the Reynolds Number of real air? Something like that...
Also the concept "scale speed" doesn't work because without changing the model at all, if I make a real train that's twice the size, my scale ratio goes from 40 to 1 all the way up to 80 to 1 for free, doubling my scale speed. The term is physically meaningless.
also at any rate making something small go 25km/h isnt really that impressive.
@@hoagy_ytfc Reynolds number is completely unrelated to the speed of sound, you're thinking of the Mach number. But you're partially right, you need to match both and to test transonic/supersonic scale models in wind tunnels you need to change both pressure and temperature in what are called cryogenic wind tunnels. Only the big names in aerospace can afford one.
If it's traveling in a vacuum then there are no aerodynamic forces at play other than friction of the air surrounding the vehicle and the tube, just pressures? If the aft section were under pressure the induced aerodynamic forces would be reduced? If both of those were balanced by vacuum and pressure what does aerodynamics influence other than the friction of the walls of the tube and the vehicle. I don't know, but had to ask. Airflow and pressure are different things.
I remember reading years ago that the ideal ratio of tube to vehicle diameter - for a hyperloop-style system - is 2:1 respectively, so the vehicle's maximum diameter is two thirds that of the inside of the tube. That'd probably improve things drastically from an efficiency standpoint (perhaps not speed though). Also, hyperloops don't tend to use the vacuum for propulsion; the lower air pressure is to minimise drag, whereas propulsion is provided by what is essentially a magnetic linear motor.
For future reference, you could try printing the rail ties (or other parts of projects) using white filament, which absorbs much less heat than dark colors like black. Awesome project!!!
Use PET-G or ABS not PLA. "Glass transition temperature" is the specification of the material you'll want to consider.
And design a clip in tie bar that sets the correct spacing of the rail supports after positioning. If designed properly it would also clamp the tube tighter as well.
or he just inverts the clip...
Awesome project! I'd love to see you build a circular track (with some kind of switch when the train passes the vacuum cleaner), and increase the carriage to ever greater speeds
That’s called a partical accelerator lol
If you have a project like this and there's a problem with it, you need to find the problem first, then, after you found the problem it should be easier to fix it.
Cheers for pointing out that this is not a new idea (unlike _some_ people think)!
Surprisingly good results in the end, at least for a small scale. Large-ish scale in the vineyard reminded me of how roller coasters are built, with the main large tube in the middle and smaller rail tubes on it. This construction would certainly make building corners easy since you could sort of 'wrap' the rails around the main tube to bank, or tilt, the train.
I think air passing the seals are a good thing as long as it's not too much. They reduce friction between the piston and the tube
Ànd we are off to the comments, lets see what the "experts" think.
love your videos! You inspired me to get in to DIY, and i really look up to you! Keep up the great work!
Keep building amazing things!
That SolidWorks thing sounds cool!! Seriously first time I watched an ad on CZcams and clicked the link. I used the full version back in the day as an engineer but moved to Inventor. Really wanted something like this for home use. Will check it out. :)
If you just intend going in a straight line, use aluminium angle ( L ) instead of flat rails to prevent spreading ( the shape of real train rails reduces sideways buckling )
Aluminium channel is WAY better, the width won't ever change😅
This was fascinating! You must have an awful lot of fun working on these projects!
"Scale speed" is a strange concept. Scale momentum or scale kinetic energy might make slightly better comparisons, physically speaking, if they're scaled based on all the relevant factors. The use of a completely separate force generator (the vacuum cleaner) that can be independently scaled makes things harder to compare. Power efficiency goes completely out the window as a meaningful figure.
Maybe scale acceleration (or force), scaled by the surface area of the piston (and maybe its mass) would be the most appropriate comparison.
Great work! Cool project! Thanks!
I would suggest that instead of metal rails on top, that you use the tube itself as a monorail.
If the thruster tube was rectangular like a 2x3, and the train rides on the edge like a monorail,
the tube itself would be the track.
The wheel carriage would be an upside down U with
one vertical wheel at the top and one horizontal on each side.
I am wondering if the magnets were on the sides of the thruster, and raised a bit
that might give the train a bit of vertical lift
Or if you had wings on the train, the train could hydroplane above the track...
To measure train speed, just use 2 electric eyes..
1st one starts a counter and 2nd one stops the counter, and gives the result...
a 3rd eye at the end of the track could apply the breaks....
I love this project!
I claim first in on this comment from the jet engine Tesla fan
Awesome work, James! Really well done! 😃
Stay safe there with your family! 🖖😊
The problem with using vacuum as a power source is that the vacuum does not produce the energy - the differential between vacuum and atmospheric pressure does. It's the +pressure of the atmosphere that produces energy. The energy between vaccum and 1 ATM vs. 1 ATM and 2 ATM is the same.
So... Using vacuum, all you can ever get is 1ATM of 'energy'. Using +pressure as an energy source, you can use 1 or 10 or 10,000 ATM for whatever amount of energy you want.
Nice start. If you want faster speeds inside the tube check out vacuum canons. Have a valve at the start point pull down your vacuum open valve and hear the supersonic crack.
A scaled up version of this is how they test impact dynamics. They use a frangible foil valve. When the vacuum/ pressure level gets high enough, the foil breaks and almost instantly allo3s air movement. Look up nasa experiment videos for that. Impressive energy release!
One of these cameras might be a great addition to your jet-engined RC car - let you really see where it's going and steer it better. If range is high enough and latency low enough.
Would you by chance know how to set one of those cameras up? The vid mentioned the drone cameras but how would one access the footage and connect it to a headset/phone?
@@gillanalafoginis6018, not personally, sorry
loved the vid!! keep going on man! very cool projects. inspiring.
Another awesome project\video! Thanks 🙂
You could actually make it break the real speed of sound. Seal both ends of the tube with foil and create near perfect vaccum. The Pierce the end closets to the train causing air to rush in. In front of train their is no air to create resistance resulting in unrestricted acceleration. 😉
I just cut my toe nails and i calculated that if the clipping was an airplan it would have broken the sound barrier, a true feat of engineering
😂
Feet of engineering 😂😂😂😂Feet
Amazing! Your videos are very fun and entertaining! Keep it up!
Super bravo ! it's a perfect demonstration of the principe
The use of something connected outside causes friction with the wind outside, or even the tire. Magnets or superconductors must be used
As for the spacing of the rails - next time print the bridge between the two rails solid and have the opening at the bottom. This way you have the flex on the side you don't care about
Fun project. Honestly had forgotten about the whole Hyperloop concept and whatnot.
Also perhaps consider printing your parts out of something other than PLA. Even PETG will do significantly better outdoors, or if you can build a toasty enclosure for your P1P just jump straight to ABS or ASA. Cheers!
I really love all your videos, they are great and I learned a lot from them 🥰
Another great job! Always a lot of fun!
Awesome....I am sure you thought of this but a bracket between each rail at a set distance will resolve your rail bowing issues. I also think dampeners at each rail attachment to the tube and to the stands would also help. Like a rubber ring on a hose clamp.
How 23 hours ago?
Bro, the vid was released 1 min ago
@@wheeff_ Patreon early access!
@@Project-Air oh ok
A potentially better way of measuring the speed would be to set up a few light gates with a microcontroller to measure the time between when they get triggered.
Yes, or:
1) Use and oscilloscope to see trigger times.
2) Film it at a known frame rate and see how far it goes per frame.
3) Shine a strobe light on it at night and see how far per flash
@@kensmith5694 with the two camera based methods you have to then find the distance, using light gates is easier as you just need to measure the distance in between.
You could use an oscilloscope but a microcontroller with a small display is more portable.
love your videos and the most special product have ever seen!!!
Have you considered using felt seals for the piston? Just like those tube delivery things at drive-through banks?
I didn't think "scale speed" was a thing, because time is constant and it's not scaling with the size/distance, no?
If ,for example, 1 foot is shrunk down to 1 inch, then it would only have to go 5280 inches per hour to go 1 scale mile per hour.
@@benjaminmarks8765 except speed isnt based exactly on scale. speed of sound and a lot of other things dont go on a scale. if you made something 1mm wide and pushed it through the air with your hands, it still goes the speed you moved it with your hands, not scaling 1mm up to a car size.
Creating some unique and interesting content. Thanks dude!
Super cool, as always!
This is the only fully working Hyperloop you'll ever see, lol. Nice job though.
Imagine the size and power of a full scale vacuum fan . Would be incredible
I know you can convert all numbers just by scalling them up. here he pulls some few 100grams weight with a 1200w vaccum cleaner. one car of a train weights 40t. You need 100 MW power for one train car.
Thats means a middle scale nuclear powerstation for a whole train. Abd that for a few kilometers of track.
The idear is so stupid, i could come straight from elon musk.
Love the APT styling. I remember seeing the original when I was a boy.
To demonstrate something really clever, incorporate some S&C.
Very cool! Keep up the great video content!
This has probably already been brought up...but there's some concern about the aluminum railings interfering with crucial magnetic fields. No doubt this has all been worked out. Carry on.
due to the close magnetic coupling, there'll be very little flux interaction with the rails
The coupling is beside the point. It's the moving of the magnetic field next to the plate aluminum that would induce a flux drag. @@kiwishamoo6494
"Scale supersonic model" I dunno feels cheated. I expected you to shoot it at actual speeds not theoretic ones
Yeah same lol even my 1/10 scale rc car reaches well beyond scale supersonic
Keep going don't stop there it looks good for future well done
I love your videos they teach me so much ♥️
This just seems like a railgun created for children 🤣😭
@13:57 1365 km/h ????. you should write "scale speed" because it is very misleading .your footage shows that you almost ran 6 meters into 2~3 seconds, that will put you at 3m/s which is 11km/h (as scale)... 11*48 =530 km/h for real train.
Yes I'm confused too by these results, don't know how they get them.....
I look forward to your videos every month - well done.
Q: at 6:56 you show where the undercarriage/piston snags when you move the top train, but the piston is the driving force tugging the top train along, so this should not have been a problem. as long as your suction does not make it a problem. just watched it through to the end, you`ll probably get a lot of suggestions, but if you make the rail holders connect at the top with either a cross-section or even make it snug around the pipe all the way (either greasing them on, or even use a little conical shape to get them on, i think your rails would be much more stable.. Fantastic project btw!!
Love your videos. I am slightly confused about one thing though. I drag race 1/10 RC cars that go down a 1/10 scale quarter mile (132 ft @ 80-100mph in about 1.4 -1.7 sec. (Measured using very accurate lighting / timing system)
I was under the assumption speed doesn't scale very well..
just because the RC cars are one-tenth the size they are still going 80 to 100 mph. We don't say they are going 800 to 1,000 mph. I'm just curious what is the difference here?
Well you are absolutely correct, BUT if you jack the numbers up for no reason, it looks a lot better!
I have to say the idea of a scale speed is kinda crap. You may want to elaborate on the concept because of how much surface area and wind resistance plays a role a scale speed makes zero sense. Just doing the same speed at a smaller scale is already way easier.
Surprised you didn't try to add a leaf blower to the other end. That would definitely add a pressure difference with (hopefully) minimal modifications
This video is super awesome! I had no idea that there were actual vacuum train systems that had been built, but it definitely has me thinking of the Hyperloop concept in a new light.😊
Elon Musk wishes he was this smart.
Proto profile pic on the top :3
Elon musk wishes he was smart, period
@@Rumplestiltzchenthat's why you comment on a video on a social media platform, while he owns one, right?
@@DMalek Get a load of this guy
Lol
I like your videos and you are a very skilled creator but whats up with "scaled speed". I don't remember fly models and even your rc car running "scaled speed'. That mental gymnastics to hype things is annoying to say the least.
He has a reason, he’s making something that could be a realscs transportation option. Because of this he has it in scaled speed to show its potential as a full scale object.
Love the vids man!
Put the vacuum in the middle of the track. Run the exhaust to one end and the suction to the other. Massive speed. Use double stick tape around the tube, spread the supports open and stick them to the tube.
Why is the most liked comment here 15 likes? Come on we can beat that in this comment!
3 likes! Great job…
No we can’t 😂
Lol
26
Bludington u r begging for likes lmao the most liked comment has 1K now
Cool vid and cool project. To viewers, don't get it twisted tho, Elon's hyperloop is a scam that is not feasible and the scaling of small projects like this are waaaay more complicated and expensive than they might seem.
Absolutely, it's a terrible idea that's extremely dangerous and practically impossible to actually execute in any real world application!
it looks like an very good idea keep it up!!
Try piping the exhaust of the vacuum to the other end of the tube to increase the pressure behind the carriage. That way its more efficient bc you are pressurizing the air behind the train while sucked out the air in front of it
So the problem of going transonic vs supersonic could be solved if the air was moving fast enough. The speed of sound is relative to the speed of the medium you're passing though, so increasing the medium speed could mean you could theoretically reach the actual speed of sound if you had a long enough track, a fast enough air pusher and puller, and enough guts to try! I'd start with a huge industrial air pump on either end, one pulling, one pushing!
But why? This concept is clearly the worst of every world. Disadvantages everywhere.
Also: “Scaled speed”? There is no such thing. It’s just a relatively small object going relatively fast.
Theres no such thing as the speed of sound at scale.. Sound doesnt go "slower" at scale so thats just... what?
very cool... when I was a bit younger I imagined this kind of thing to rapidly transport goods from place to place instead of trucking... I got the idea one day while sitting at the bank watching someone put documents etc., into one of those tubes and it shoots into the bank and came back later... good to see someone actually try it
There was a full scale pneumatic subway test line built in NYC in 1870. There's a world of difference between Hyperloop and pneumatic tubes though. What you saw at the bank is a pneumatic tube. The package is propelled by air pressure, like a bullet in a rifle. Hyperloop cars generally use magnetic propulsion. The tube is only there to reduce the air pressure and thus reduce air friction to allow higher speeds / greater efficiency.
Great video, I wonder if you would get faster speed if you added a positive pressure behind whilst having the vacuum at the front effectively pushing and pulling at the same time.
In theory it should be more efficient transfering air from the front to the rear
Such a fantastic project. Back in the early eighties I had a toy track setup that used air to move the vehicle through the tubes. I really enjoyed playing with it but it definitely had its issues. Even though I was only about 12 years old I was trying to improve it with some success.
Micronauts?
@@gregsteele806 i honestly wish I remembered 😂🤷🏼♂️
Congratulations. You've done more with just some easily accessible materials than most companies have managed to do with multi-billion dollar budgets and entire staffs of engineers.
3:34 the wagon from a wind up train set getting my attention
The connection point on the acrylic tubing should be flared, then 3d print a coupling have a smooth transition along the tire position on the piston, the seal outside of coupling will help push through the transition point.
Was just thinking about your 3D printed parts that hold the rails in place. Have you considered placing a hole at the top, to receive a nut and bolt? you could then adjust for rail spacing and potentially avoid variations due to changes in heat.
LOL, 7:56 I can just hear that excuse now over the tannoy system at my local station..."we apologise for the late running of the '15:32' to Waterloo, we forgot to change the bag in the vacuum cleaner.
Pro tip: export STL models in solid works in with lower angle tolerance this increases the resolution of the curves sections of your print
Well-done!
Very nice. The larger the piston, the less circumference to he leaked around, I guess.
Next time, perhaps fill the tube with steam, seal it, and as it condenses into a little bottom duct, pressure will drop to near zero. Will the tubes hold? They might fog up a bit?
Then the slightest opening of a valve will have anything inside the tube GO. Once. Or, do the maglev drive thing and keep the near vacuum.
Awesome video and a great example of scope creep lol.
Wow so excited to hear solidworks is now reasonably accessible
love the video, in the technical university of delft (my home town) they are building the hyperloop and other thinks like a waterpowert car and that sort of stuff
Great video, and congratulations on 400k subs 👏🫡
just one thing about train wheels: that curve (conical shape) acts as a differential in turns. I have never met anyone talking about this
Very Cool, as for the distorted rails. Maybe add a screw adjustment with a nut between the 2 top parts and set then all the same
amazing project i'm trying to make my one model four for a school project if I may ask where did you get the acrylic tube. kind regards max
This is nearly identical in concept to the classic bank and box store vacuum capsule method of passing money and documents from one place outside to another inside(an office for example) and doing so very rapidly. Usually less than 2 seconds from outside station to bank teller inside. They also would use clear acrylic 4” tubes where visible for architectural effect and pvc when in-wall. But work effectively yes they do. They use a type of fuzzy seal ring like felt on both ends of the capsule to allow movement tolerances and still slow the atmospheric pressurized air down enough to make it effective.
Using Different Plastic (did you use PLA?) and maybe even covering the plastic parts in a ring of Aluminum Foil may help with the heat melting/warping.
There are already comments below on making pressure powered version. Your version is limited to the power of your vacuum cleaner. However, if you'd take a tank of let's say 100 litres and pressurize it up to let's say 8 bars (quite common parameters for consumer grade compressors with cost of USD 400-500) then after you open the valve you would transfer to your "train" (more like a projectile) energy around 8 kJ considering the average pneumatic losses around 75-80%. However, take into consideration that you would have to put another valve to allow the air to enter your "loop" freely after tank pressure drops to 1 bar.
That energy must be sufficient to accelerate around 0.13 kg (0.13*343*343/2=7,65 kJ) up to speed of sound.
However, you would have to consider speed barier resistance for your specific case to exceed it.
I would say if your train would weigh around 0.1kg such a tank should be sufficient to overcome the sound barrier.
Also, you could have the tank of lesser volume, but higher pressure as they do in pneumatic rifles.
P.S. If you consider the freight train weight to be 1000 tons (not the greatest of them) - your model is gonne be 1500:1 in such a case.
You need some linear rail as the rails. Might be expensive but they make some super thin/small rail.
Love it - way more real than the full size one will ever be!
To solve the uncoupling of magnets over the joints in the pipe....use 2 sets of magnets 1 set at the front of the carriage and 1 set at the back of the same carriage this way 1 set will always be coupled while passing over the joints. Keep up the great work pal great stuff!
You can use less power requirement by placing the vacuum along the side every so incrementally and it won’t need much since it gets raw draw not distance over time.
Looked like there was a dip in the tube path in the first 1/3 of the track that was robbing you of some acceleration.
If you make another version, design a "flag" or circle that hangs off the side of the tube supports with a small hole in the middle. Then you can use a laser level projected through the holes to get shims under the track supports and make a perfectly straight/level tube.
I would love a part 2
I grew up exploring the abandoned tunnels and weird old structures across the road in Crystal Palace Park. I watched as a guy found the remnants of the Pnumatic train in the park in 1986.
at 4:55 I literally did the EXACT same thing you did! "Whoah! Hahaha!"
I've always found "scale speed" to be a bit ridiculous, but I do like the idea of a DIY hyperloop. We used to have similar things in banks before ATM's replaced them, but, both those and your system didn't pump the tube down to proper vacuum like a hyperloop would. The whole idea of a hyperloop is getting around aerodynamics by removing the air, which is very cool indeed, but the trains still need some method of propelling themselves.
Nice work!
I have a 3kw side channel blower, it develops around 3x the vacuum of a vacuum cleaner....mach 2 (scaled!)
Could you use a skirt on the piston to improve the seal while not increasing the friction by too much?
You could make hyperloop frictionless using more magnets
Could you get it faster by applying higher than atmospheric pressure at the currently open end? Maybe a leaf blower?