Split Flap v2 is SO FAST

Split flap v2 is SO fast⚡️
•••
I decided to run another iteration on the split flap display which included splurging on faster/stronger/much more expensive motors. The housing needed a redesign and the motor is now connected to the drum with the polyurethane belts from my last vid. Finally, I was able to shrink the drum way down because this application only needs numbers and room for 5 or 6 letters.
•••
Finally I can reveal why I’ve been diving so deep into all these no-video displays and what 8 split flap modules sound like side by side by side- check out the full length video for that (link in bio).
•••
#engineering #mechanicalengineering #splitflap #vintagetech #3dprinting #mechanicalsculptures #mechanicaldesign #mechatronics

[@brambo7383]

This scratched an itch in my brain I didnt even know I had...

[@caydenboggs5479]

Same

[@Engineezy]

😂😂

[@WhyNotMCHere]

fr

[@brambo7383]

​@Engineezy you laugh sir, but with this I had to watch all your other videos too. That sound is like crack to my ears

[@thewafflegamer6152]

Same bro

[@CoLp0eSnED]

Dude, yes! Much improved!

[@Engineezy]

🕺🕺

[@TheParmesanMoai]

​@@Engineezy 💃💃

[@KankBank]

@@Engineezy💃🏽💃🏽

[@mcstench8913]

i love analog displays

[@DARKPROTEGE211]

You mean, "no video displays".

[@Engineezy]

Haha yeah, video free! Still lots of digital under the hood

[@AnEnemyAnemone1]

MECHANICAL. not analog

[@rolo2568]

Those are awesome. I love these flop displays

[@infernaldaedra]

seen at old train stations across the world lol

[@gcvrsa]

The Solari display at Amtrak 30th Street Station Philadelphia was one of my favorite parts about travelling. Sadly, it was finally retired in 2018, after over 40 years of service. It is currently at the Railroad Museum of Pennsylvania, in Strasburg, PA.

[@KiprasGavenas]

Rīga, Latvija mentioned 🔥🔥🔥🔥🇱🇻🇱🇻🇱🇻

[@IN4CER3013]

That is actually so cool.

[@jerybenhouser5940]

I always wanted a clock made of the same mechanisms they use for automatic score boards

[@thomasgeorge4384]

Saw those things travelling through Frankfurt in 2000. The question of "why" you're doing it is silly. They're cool.

[@ewliang]

That's the sound of satisfaction. 😂

[@almostanengineer]

I’m pretty certain they don’t use stepper motors, but DC motors and a marker to indicate position, and that’s why they all rotate when they are first turned on.

[@Novisor03]

I guess that's why it's called a Golden Retriever. It retrieved what it thought was gold 😂

[@TomFYouTube]

Reminded me of the 108:00 minute Clock in the series "Lost".

[@sansthefunnyskeleton8606]

good job! now try making more split flaps for all letters and characters for all messages. edit: i know he only needs some, but i wish it could display any message.

[@niburX]

The split flap became more competitive

[@drrrw]

Best application is to announce customer name when their order is ready! Too cool.

[@Engineezy]

Haha yeah thats a fun one

[@sanstempest119]

It’s so satisfying

[@eanna3781]

I want these to read out the caller of my phone now lol

[@billybobinthehouse12]

This is what my brains sounds like when someone says something stupid 😅

[@dylanrowleyprod]

I work as a state auditor and if a government entity couldn’t provide supporting documentation for reimbursements, that would be considered a finding. It seems ridiculous that there is no compensating control over reimbursements for those in DC

[@imanrusyaidisyafirozaimi1712]

You should make a 3d printed escalator . Would be sick ngl.

[@jasonfortress9027]

Get coloured ones and use them as pixels for a giant screen

[@ericbrown5862]

Oh my. You could make an "RGB" screen with this concept.

[@BtaraDev]

That would be so cool

[@Engineezy]

Agreed! Would be awesome

[@adamruuth5562]

I love these.

[@3DPrismaPrint]

Cool dude... Realy nice job 👍🏻 💪🏼

[@Engineezy]

Thank you!!

[@3DPrismaPrint]

​@@Engineezy i love your projects 💪🏼

[@DrMFoster7]

Surely those signs used gears instead of belts.

[@ruhtranortep]

Can you put small magnets on the bottom of the characters and the bottom of the cage to reduce bouncing? Alternatively, a mechanical, side-grabbing approach would work if you connected it to the same shaft for timing but this is a bit more mechanically complex than magnets, haha.

[@cvgurau]

Is there a separate motor for every letter in that airport display? That seems insane to me 😓

[@Engineezy]

So crazy right? Thats why they don’t exist anymore

[@raymedina7880]

Sounds like a bunch of dominoes falling over lol

[@MrDsturman]

Make a grey scale led wall!!!

[@captainsohail95]

Amazing invention 😊

[@Engineezy]

Thank you! Cheers!

[@baldpotato9808]

The sounds it makes can be annoying and satisfying at the same time

[@jessylabrie9298]

ooooh I would love to have this so bad lol

[@gavinlatourelle6092]

next upgrade should be a brushless motor

[@adewhite731]

To achieve this I need a bigger motor… You could have just removed the original motor (which you ended up doing anyway) & played with pulley/gear sizes until you achieved the speed you wanted. No new motor necessary.

[@mohammedalnayar]

Wondering whether adding some gears to the old motor would have achieved the same results

[@NarkeEmpire]

Imagine a huge rgb screen made of flapping rgb plates........................

[@Alcoholicfien]

Falcon 500

[@mistalod]

Is there a particular reason why you wouldn’t have a large motor going into a smaller gear so you could have a precise motor that doesn’t have to move much? Seems like it could be worth a shot.

[@tankgrrl]

Me: tosses all my printed rack-driven displays in the trash and starts again. LOL Seriously, that's really cool.

[@Sadiqi]

I miss that at 30th st Station

[@AlphaSphere]

I actually really like these flappy boards and am sad that it's relegated to something from the past.

[@masterobsidian68]

I want this so i can count for fun

[@jonathanyoke6585]

Guys guys guys. Just don’t talk to Isobel. There’s no need. Don’t trigger the event. It literally doesn’t matter if you never speak to her. Light cantrip and torches then Dolly Dolly Dolly.

[@Moonys0asis]

bad apple from split flaps when

[@williamplays0402]

ooh that large one is in Frankfurt Airport Terminal 1 Departures hall A!

[@Bear049]

Can you make a clock out of them

[@jackb3822]

I only realized on the second watch that its called a split-flap and not a flip-flap 😅

[@gintonic5770]

Would the replacement of the belt with a notched belt increase it's performance? Belt slippage wouldn't at least happen, but not sure, if that is even a concern here.

[@dankdigital4058]

Hope you get it working properly 🤞.

[@Engineezy]

I hope so too!

[@MickeyFKNMouse]

Might be a good idea to link videos in the description you’re referencing. Why people don’t do that is annoying and bizarre

[@RavenRose91]

Is it possible to add a rubber seal around the flaps to help reduce noise? The biggest complaint I always hear about these things is the noise (I’m thinking something like the rubber coverings we used on our dog tags when I was in the army or something similar)

[@Engineezy]

There are lots of ways, but the noise was actually one of the goals!

[@Voidic_empress]

Instead of just going to the next number/letter What would it look like if you had it flip through them all first?

[@Engineezy]

It would go brrrrrrr

[@jimsamson7934]

Imagine programming in C with a bunch of these lol

[@king_james_official]

it's really not that hard

[@Engineezy]

😅😅

[@miguelle9724]

*4… 8… 15… 16… 23… 42… Enter* *_count down starts over_*

[@srinivasanv6573]

Is that Full build is available?

[@theraveniswatching]

final destination

[@Tedmader-fp3vb]

It usued to be so cool when the large ones would update info in sight and sound

[@MaxPower-vf8kt]

I think it was Honolulu. The airport board straight up sounded like an airsoft machine gun. It was decades ago. It was memorizing.

[@jetaddict420]

​@@MaxPower-vf8kt most airports had them actually

[@nader50752]

Frankfurt's Airport still has it!

[@PixelTheMushroom]

@@nader50752 which Frankfurt?

[@KrakenIsland64]

​@@MaxPower-vf8ktyou memorized the whole thing? It changes so much, that's very impressive.

[@flexiblebirdchannel]

The genius in commercial flip digit signs that make them financially viable is that they use only 1 motor

[@Reazy-]

Do they have a gearbox or sum? Maybe an complex algorithm?

[@ulogy]

​@@Reazy-yeah, clutches and either mechanical computing or (way more common these days) a modern processor.

[@jan_the_man]

Damn was just wondering how they did that in those big displays, but that takes some mechanical engineering..

[@flexiblebirdchannel]

@@jan_the_man One motor drives all wheels on all digit positions, an electromechanical coil per digit engages or disengages a single wheel.

[@UsernameWasTakenWasTaken]

Me: Uses digital display This guy: 🤯

[@xHadesStamps]

There’s something so satisfying about old technology. Especially making it yourself from scratch. That silent, instantaneous change that you get from a modern electronic display just doesn’t do it.

[@Engineezy]

Agreed!

[@ssa7843]

Next step is a pixel graphics. Letters become subpixel layouts for higher resolution.

[@Engineezy]

That would be cool!

[@TwilightFox_]

This is really cool

[@Engineezy]

🙏🙏🙏

[@Pebis22]

Those displays always remind me of the “no Russian” mission in the original mw2

[@rock_guyguy9591]

DELAYED

[@--86--]

CANCELLED

[@ryzenryne8747]

How to make your home sound like you're inside a busy airport.

[@matthew-ph6xo]

hell yeah, love analog

[@mickolesmana5899]

but this is digital

[@precesionnoreaster1507]

No this is mechanical, electric doesnt equal digital ​@mickolesmana5899

[@mickolesmana5899]

@@precesionnoreaster1507 i understand that, but if we are going to split hairs, Mechanical can be digital, what differ a digital from an analog is the continuity of informartion in a given timeframe. This system is digital, since it gives discrete value (hence digits). Mechanical calculator? Digital Pre transistor era radio? Analog

[@mickolesmana5899]

@@precesionnoreaster1507 I mean you kinda answer my point, mechanical vs solidstate(electric) and digital vs analogue

[@AnEnemyAnemone1]

You mean mechanical, not analog. This is digital. Mickol is correct.

[@squaresquarestar]

what about you make bad apple on theese

[@Saviliana]

Instead of bad apple, how about making a 8 color display with 4 color dithering to mimic shades?(Which use 36 character, 32 of color with 4 as greyscale)

[@koktszfung]

This sounds great

[@freerideshuttle]

This is great. Very well built

[@NeptuneNoire]

I need one.

[@stephenoudhnarine2006]

I want a clock like that

[@mr2octavio]

How do you account for the belt slipping?

[@liamsmith8518]

I believe with tension and friction preventing it from slipping

[@Shwyne23]

You could use the hall sensor not only for "homing", but also for readjusting after every full turn, if needed. If he has e.g. 10 signs, there is 36° Angle inbetween. Its very unlikely the belt slips even close to 36°/turn.

[@kadenparry4136]

You could also use a timing belt

[@luccahg]

Add the signature beeps and you could sell that 8-stack as life points counters to yugioh nerds for mad bank

[@DaPyxl]

I need 4 or 6 or 12 or even 16

[@West_Coast_Mainline]

Bro got the british rail special

[@hangryhangry]

this is realy beautiful

[@Engineezy]

Thank you!!

[@hangryhangry]

thankyou dear friend

[@jameshalko8713]

Company called Oatfoundry makes splitflaps. Philadelphia, USA based.

[@Dev1nci]

Bro, when you’re a grandparent one day, put this in the lounge as a clock and when your grandkids sleep over they’ll have the grandfather-clock sleeping experience 2.0 😂😂 As always, awesome build 🫶🏻

[@Engineezy]

😂😂 thank you!

[@0b11000100]

I love split flap displays! I didn't know they had a name!

[@WarthUnder-om8ox]

No way this doesnt violate some patent

[@tmc3593]

It probably doesnt, but also hes just making them for himself

[@keithjohn1650]

it’s not for sale (i believe) so patents don’t really matter

[@axetbh]

​@@keithjohn1650he isnt selling the product itself but he is selling the project file of how its 3d printed on his website. Idk if that would be legal or not.

[@nickhalden374]

mfs these days really do be just shitting out words like patent without really knowing wtf they're talking about huh

[@WarthUnder-om8ox]

@@nickhalden374 i actually have 2 patents, so how about you check yourself.

[@minonmadman2153]

What’s the big place in the background and also you should start selling those fast ones

[@bgubs07]

You could definitely do the same thing with the little motor. Just belt drive with a larger diameter gear on the spindle

[@cardboarddignity]

Bro is ready to reassemble the bunker from Lost

[@godzillaridergamer7595]

do the bee movie job board 😂😂😂

[@Regnegade]

could you have messed with a gear ratio instead of using a different motor? just curious! love the build!

[@kingjulian420]

I would rather have an analog display of statistics than a digital one.

[@joea7886]

I prefer the slower one, it's more satisfying

[@Aweoe]

Ok? Nobody cares what you prefer

[@GodlyAwesome]

Nobody cares for your opinion either dude, just don't say anythinf at all if you're going to be an asshat ​@@Aweoe

[@clydehawkins7194]

You do apparently ​@@Aweoe

[@loganwatters6001]

You should use the eight displays to make a sub count

[@motbus3]

Why not a gear and a smaller slower motor (like the ones in the airport)

[@external316]

Sounds like AMERICA

[@paperclihp3588]

Hello, I see people make stuff like this on the internet all the time and I wonder how they do it. I see that you are an engineer and are wondering if you got a degree and which one it was.

[@Engineezy]

I got a Mechanical engineering degree! But also have lots and lots of projects under my belt as well

[@VonSchtauffe]

These displays are so nice. It's a shame we don't see them more often. But I understand why. Motors and moving parts means wear and tear

[@kleinermuc]

The large array shown in the video is located at Frankfurt/Main airport (Germany). The design uses synchronous motors at 50 Hz and a fixed gear ratio. There were quite a number of attempts needed for the final design. But the displays are a bit older than 20 years and still in operation. Actually Fraport don't want to replace them, as these kind of displays are nowadays somewhat unique. The displays features a function, which is not possible with TFTs - if a row is malfunctioning, the latter rows are simply shifted :)

[@dingusaurous6419]

I'd love to see a video on nixie tubes

[@OG-ProfessorFarnsworth]

I want to build something outa these so bad!! Used to have an old split flap alarm clock. It was cool to watch

[@Electricz0]

How are the characters indexed in the new design? I assume that's a stepper motor, but wouldn't a smooth belt lose steps?

[@Engineezy]

There’s enough friction that it doesnt skip, also the letter wheel is super light!

[@Electricz0]

@@Engineezy Thanks for the reply. Great work!

[@chandlercoleman5835]

How much would it be to preorder 5?

[@MasonMakesStuff]

$10 for his printables selection I believe

[@Engineezy]

Haha wayy too much, this wasnt a cheap thing to produce in low quantities

[@chandlercoleman5835]

@@Engineezy respect

[@ottelf]

That's so fucking cool

[@braggs2]

how does this guy not have 1m subs yet his vids are awesome

[@sosia0naro]

Now program it to always take the longest rotation to reach the desired letter/number