60 speed manual transmission

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21 дек 2022

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Комментарии : 434

@BloodyMobile Год назад

So this is what the transmissions in the Fast and Furious movies look like.

@DODTruckPulling Год назад

Lol

@an2thea514 Год назад

They actually put a tractor transmission in one of the cars at the drive-backwards-fast-chase scene. You can see that actor(never watched the movies) put 2 levers in gear before they start driving the other direction.

@OldTechMemories.mp3 Год назад

@xmo552 Год назад

@@an2thea514 which

@brianl8983 Год назад

Superb

@executive1946 Год назад

a lot of trucks have 24 speed manual transmissions so its amazing to think something like this exists in several real life applications

@ColtonRMagby Год назад

That's if you have a Spicer 6x4 transmission. Modern trucks use 18-speed manuals.

@RichardBetel Год назад

@@ColtonRMagby How are the gears arranged? It is an "H-pattern" 9 gears wide?

@ColtonRMagby Год назад

@@RichardBetel An 18-speed has 3 slots to move the shifter in, and they use air for some of the shifts. A Spicer 6x4 has a 6-speed driving a 4-speed auxillary transmission, and the gear pattern is unusual.

@notanengineer Год назад

Almost all truck gearboxes like that have a normal 6 slot h pattern design and the extra gears come from a rangebox and splitter which are like 2 speed gearboxes attached to the end of the regular box

@ColtonRMagby Год назад

@@notanengineer I count every pair of gears as 1 slot because you're moving in a straight line between them.

@Renault_75-34MX Год назад

Multiplier gear boxes are quite common in manual tractors. A lot of the one's built around and after the 2000's for example use a 24/24 6 speed with either 4 groups, or 4 intermediate gear that can be changed without clutching. Some 80's/90's Renault tractors also have a third optional box to make them a 24/24 from a 12/12. This was done by adding a two speed intermediate box to the already existing 3 Groups +4 Gears and Reverser box.

@jeremygalloway1348 Год назад

Never knew Renault made tractors lol. Learn something new every day

@XMaster340 Год назад

@@jeremygalloway1348 Then let me tell you about the amazing beginnings of Porsche and Ferrari 😁

@Renault_75-34MX Год назад

@@XMaster340 Porsche didn't really build tractors for that long though, and the production was sold to MAN, but they stopped a few years after that as well.

@Renault_75-34MX Год назад

@@jeremygalloway1348 they made tractors till 2003 when Claas bought out Renault Agriculture, but still made some Renault models till 09, mainly the Celtis. And to add to XMasters comment, Lamborghini also started out by making tractors, mainly out of WWII surpluses, they only started cars when the Mr. Lamborghini wanted a original Ferrari part for his Ferrari, and even went to Mr. Ferrari, but he said to Mr. Lamborghini something along the lines of 'you're just a tractor builder' or similar, but definitely nothing nice. So Mr. Lamborghini wanted to show Mr. Ferrari that he can do more. Now days Lamborghini cars are well now high quality, while Lamborghini Tractors has been part of Same for a long time now, and SDF ever since Same bought Deutz Fahr, with Deutz being the primary brand, and Lamborghini just being the lesser known cheaper option. Comparable to Audi and VW, just that DF is Audi and Lambo VW, just lesser known.

@RanchingBoys2020 Год назад

I have experience with 3d printing and mechanics myself and let me tell you, this man has to be part insane to have the dedication to design such a complex print. Hats off to you!

@MAGGOT_VOMIT Год назад

I think it's funny that those same weaknesses in 3-D printing also applies to the direction of the grain in Wood projects.

@h7opolo Год назад

5:34 your solution is to print the pieces separately, not as one piece, then attach them during the build because very little stress will be applied to their junction point.

@frostfamily5321 Год назад

And screw them together. And I hope that Micro Center will sell housings for partially 3-d printed toroidal torque converters, which I hope can use thermometer alcohol as transmission fluid so that the heat can get squeezed out in a skinny pipe in front of and above the engine! But with a bike you need to use pipes connected together by rubber tubes held together by woven metal if rubber is insulating. P.S. The One Piece is real!?!

@TheAnonymmynona Год назад

Depending on how strong it needs to be and how importand the asthetics are you could also lay it on the largest of the suggestet gray blobs. Then it is at an odd angle and you need some support but not that much and it is a lot stronger than the vertical solutions.

@h7opolo Год назад

@@TheAnonymmynona whoa, cool idea

@frostfamily5321 Год назад

@@TheAnonymmynona The One Piece is real!

@Artaimus Год назад

Since they're being glued together, incorporating a tab and socket system into the print would assist as well.

@dangeary2134 Год назад

I have rebuilt transmissions from big trucks. It’s not as hard to imagine the building process as it’s all simply gears. To get the different ranges, one can simply add reducers and multipliers to a section behind the main gear set. The final drive is important here, as it needs to be matched with the horsepower going through the input shaft. The torque is managed by how robust the gears and shafts are, so little beyond making them hardy enough to stand the maximum torque is the simple part. Trading speed for the torque is the big trick, because the needed horsepower can be easily overwhelmed by just having too much at the final drive for the engine to keep moving!

@christopherwinter2099 Год назад

Just gotta remember the equations and remember which gear is which though it does help that they'll all splice to together. Gotta love that diesel program in tech schools.

@danw1955 Год назад

Essentially, if you put power to the other end (your current 'output' shaft), you've created a compound truck transmission.. similar to a Fuller/Eaton RoadRanger. They generally just have a low and a high set for the multiplier, and then 5 ratios behind that, in the case of the 10 speed. You basically run through the 5 gears in the low range and then pop the button up to shift to the high range, and row though the 5 ratios again until you reach the 1:1 ratio on the output. Pretty interesting experiment! A bit lighter than the typical 1000 lbs. or so for an actual compound transmission!😂

@gearcheck101 Год назад

You forgot to mention the fact you've effectively duplicated many of the ratios, and that the ideal shift pattern wouldn't be 1 through 12 on 1x, 1 through 12 on 2 x, 1 through 12 on 3x, etc ect, but rather you may have alternate between shifting front and rear to hit all possible ratios in the correct order. But as I mentioned there is significant overlap, so they may be much fewer than 40 unique ratios. At the very least the 1:1 and 2:1 gears in the 12 speed will be duplicated by each successive gear in the 5x multiplier , IE, 2:1 in the 12 speed on the 1x will be the same as 1:1 in the 12 speed on the 2x...

@chaintheguardien Год назад

was about to say the same

@mauricereichert2804 Год назад

He said the last gear of the first gearbox almost reaches 2:1, so its strictly less and the first 12 ratios are unique in the Interval [1,2). Therefore after multiplying with 2^n for the big ratios you'll always end up in the [2^(n-1), 2^n) Intervall for n \in {1,...,5}. Therefore each of the 60 total gear ratios is unique and increasing exactly in the order you described (1,1), ..., (1,12), (2,1), ..., (2,12), ..., (5,1), ..., (5,12).

@richardbrooksshnee Год назад

@@mauricereichert2804 and this is how we get "honest" marketing claims that leave customers upset. You're completely accurate technically. But it isn't going to really deliver on the claim. The range is going to overlap sufficiently enough that it may as well not exist.

@mauricereichert2804 Год назад

@@richardbrooksshnee The ranges aren't overlapping at all. The only interesting thing is how close is almost 2:1 to real 2:1 and how are the steps seperated. If he choose the teeth count ratio such that it approximate 2^((m-1)/12) for m \in {1,...,12} in a good rational way (e.g. exactly like a western piano 7 white + 5 black =12 tone steps), it's gonna feel very natural and every single gear shift will increase about the same factor and maybe even sound harmonically. :D

@richardbrooksshnee Год назад

@@mauricereichert2804 yes they are. The operator would be skipping that last gear as x~2 and x2 are close enough to the same that any rpm differences would be negligible from their standpoint and so there is no worthwhile reason for the overlap. You're going to shift to x2. You're ignoring the point and purpose of a gear box. Effectively the same is wasted and is an overlap in range. Damn near the same output to engine rpm & torque. Your "but the numbers are slightly different" is obnoxiously pedantic to the point of counterproductivity and ignorant to the point of a drive train. You can cry technically right all you want. You're effectively wrong.

@chrischarlesanimations Год назад

Incredible Job! Steven, the transmission is so mind blowing to see it in action you did a great job designing how the first transmission gear set continues in to the multiplier gear set your best video yet Great job happy holidays Steven.

@Teyros 11 месяцев назад

Honestly. I love the way you teach things with the 3D printing! Inspiring to say the least.

@MAGGOT_VOMIT Год назад

Those same weaknesses of 3-D printing also applies to the direction of the grain in Wood projects.

@toshaheritalvinen6426 Год назад

So you made a 12 speed transmission with a 5 speed transfer case. Pretty damn cool

@JustTheRat01 Год назад

the rod goes into the square hole btw cool build lego actually used a "gear multiplier" to make the gearbox in the 911 gt3 rs, chiron, sian fkp and also the daytona sp3 its a 4 speed sequential with a 2x multiplier attached to it, so it can get 8 speeds, in a pretty small package

@pykid1915 6 месяцев назад

best video of manual transmission i have ever saw.

@Jeremiah-dv5mf Год назад

Wow that’s very cool I really think 3-D printing is pretty awesome

@haraldmbs Год назад

Hey, you do also technically have CVT gearboxes, they are generally not used in manual gearboxes because it makes no sence too, but some automatics use them, and they have a "infinit" amount of gear ratios between Min and Max :) I think it would be really cool to see you try to make a manual CVT gearbox!

@dawsonramdass1145 Год назад

I mean a manual cvt would basically just be a up down lever

@noiwonttellyoumyname.4385 Год назад

@@dawsonramdass1145 Take a look at the belt drive section from a 2J-type Bridgeport milling machine. It's literally a manual CVT. There's a little crank you turn to adjust the pulley diameters, and it takes your single speed motor and turns it into 500-4200 RPM if you're in hi-range and 50-500-ish in lo-range. There's plenty of good drawings and such available to see how it works.

@jetpackjbd Год назад

@@noiwonttellyoumyname.4385 I saw a similar “friction drive” manual cvt demonstration in a museum recently. It’s pretty neat how simple it is

@skirnir-atf Год назад

I`ve got manual CVT transmition In Chinees drill press. And it`s really just level + and - , which you move to adjust speed. Level just shift one of cone, and another holding by spring

@haraldmbs Год назад

@@skirnir-atf Yep, it's not a particularly advanced mechanism but I still think it would be cool to see one with a ridiculous gear ratio

@AndrewAHayes Год назад

Is there any chance of you showing us a 4 gear manual syncromesh gearbox please?

@isarob03 Год назад

A couple of the 13& 18 speed semi transmissions ive rebuilt had a double countershaft configuration. allows for a shorter package.

@sloganeeringgaming6363 Год назад

To put it in to better terms you have a main and a auxiliary transmission commonly found in older semi trucks

@Requis_Bartholomew_Jones Год назад

Fast and furious gearboxes be like

@andrewholmes3674 Год назад

Can we just appreciate how the music absolutely slaps!

@Caiman_dorohedoro Год назад

Hey super cool that you did a multiplier gearbox

@CableWrestler Год назад

Those "couplers" you speak of are otherwise known as a synchromesh, they are tapered inside to allow for gears and shafts turning at different speeds, to engage. It gradually brings the layshaft and input shaft up to speed, or synchronization.

@pytbob Год назад

This is an unsynchronized gearbox... Those are just shift collars

@amorag59 Год назад

@@pytbob Yep, those are the "dogs". I thoroughly enjoyed the vid, but it would have added to the learning if he used the real terms such as the shifter forks, dog toother gears etc. Many would have an "ah-ha!" moment when they read about dogbox gearboxes.

@pytbob Год назад

@@amorag59 so many nuances in transmissions and I'm far from an expert... I do know that dogs refer to teeth on the face rather than the periphery of a gear. They were used as the step between sliding mesh and synchros

@bramweinreder2346 Год назад

Great video. It would also be a neat opportunity to spin from the other end, and talk about torque.

@Jaggerbush Год назад

I love these! Wow this is complicated!

@MCGR Год назад

i cant stop hearing "thats right, it goes into the square hole"

@home-daddy-slice9697 Год назад

Maybe you said this in the video and I missed it, but this is very similar to how its done in bikes. Two different sets of gears that can be changed that allow for way more speeds than one set

@hunterfodrea3919 9 месяцев назад

This is how semi trucks were built a while ago. The most common setup to see restored is a 5+4 shifter. A front 5 speed paired to a rear 4 speed.

@josephburdette8518 Год назад

This is essentially how a twin stick semi works, it’s kind fun, less total gears and “speeds” but same concept

@pintokitkat Год назад

Where layer lines create weakness or the need for supports, split the model so you can print all of it flat but with a designed connection that will take a screw or with an effective glue area.

@azeemtics6613 Год назад

Got this concept in my mind

@boerharms2209 Год назад

you know what really grinds my gears....

@aslofiasitcanget2945 Год назад

Can you imagine being in 60th and having to stop at stop sign

@n16161 Год назад

Cool video man!

@elijahhoots1911 Год назад

This is my new weapon of choice

@memeAlexcheramie Год назад

“So how many speeds do you want in your transmission?” “Y E S”

@T3KFTW Год назад

My modded ender 3 v2 produces incredible layer adhesion. I use a high performance fan shroud, titanium heatbrake, copper heatblock and nozzle, dual z, and geared extruder direct drive.

@renimleinadyt Год назад

There are trucks with twin transmissions. When people drove those trucks they would call a twin sticking lol. But it was essentially companies just sticking two of their transmissions together so the combinations of gears was pretty much random and very disorganized. It would take a lot of memorization to properly drive these transmissions. Honestly an impressive feat. Then there are brownie boxes. Which is pretty much what you built you have a standard transmission with a three or four-speed brownie box that gives you three or four different ranges for your transmission. They are the precursor to the modern load rangers.

@thekornwulf Год назад

I own a 1953 Packard with a 3-on the tree plus a Borg-Warner Overdrive that kicks in above ~25-30 mph. It's very interesting to drive as you go 1st, 2nd, 3rd, Engage overdrive, back down to 2nd (4th) and then back up to 3rd (5th) if you're doing a full gear run. It's not quite as extreme as a twinstick, but it was certainly a bit of a learning curve.

@dammityoutube Год назад

Most modern semi transmissions are still 2 transmissions, they just share one case and one "stick". Depending on what transmission you have, it can be a 5+4 with low range on the bottom is a 9 speed. A 5+5 is a straight 10. A 5 speed with a splitter is a super 10. You take a 5+4 and add a splitter to the top 4 speed and you get a 13 speed. 5+5 with a splitter on both the bottom and top 4 is a 18 speed. Plus a whole lot more different combos.

@can_hauler Год назад

@@dammityoutube your transmission math is a little wrong, the transmissions would be 5+2 for super and regular 10, 5+2+(2(high range only)) for 13, and 5+2+2(not limited) for 18, Yes, I know the numbers don't add up to the actual gear counts, its because of how they label and layout the patterns. 13 and 18 have the same pattern with the difference being the splitter useable in low range, the "missing" 2 gears in a 18 are in the "low" position ( 13 has low (low range)/ high low low - high high low (high range w/ splitter), 18 has the low range split as well. Most drivers only use the "lo" position in the lowest and highest possible ratios (if at all, those gears are extremely low) because the other ratios are barely different, the usual shift method is to go sequential and not use the splitter unless you need to, the splitter basically does 1X/1.5X with X being the gear (1,2,3 ...16,7, etc). 10s will get you there, 13s are better, and 18s are the best. The reason is because every incline has a gear ratio that maximizes speed for current situation (your weight, your engine, % grade, etc) and an 18 has the best chance of getting you as close as possible to it without going "over".

@heyitsdrew Год назад

you can always some how mesh the corners of the arm linkages. that way you can print both sides laying down, without supports. all u would need to do is bolt them together, or have a dove tail or something.

@3dPrintedTradingPost Год назад

another suggestion for strength you could have added a couple mill sized fillet at the 90 degree angle of the shifting linkages to distribute stress to avoid a break.

@Downstriker559 Год назад

The correct terms you're probably looking for is main gearbox and auxiliary gearbox; in your instance you have a 12 speed main box with a 5 speed auxiliary. Semis use an 18 speed which is a 4 speed w/ L main box with a 4 speed auxiliary

@westpole Год назад

Very intriguing!

@deafbythirty4148 Год назад

I heard him say square hole and i got flashbacks Thats right it goes in the square hole

@AngelAndTheWolf Год назад

I have considered joining two motorcycle engines together to make two fours into one straight eight, leaving their two transmissions separated. Each transmission would backdrive a different side of a differential, with the resulting output from the ring gear driving the rear tire. Gear ratios from the two transmissions would be averaged by the differential, giving 9 useful ratios out from the two five speed transmissions, or 11 useful ratios from two six speeds. Can you play with that?

@craftminer49er Год назад

DOT would have something to say about that lmfao

@AngelAndTheWolf Год назад

@@craftminer49er I don't see why. It's just a motor swap.

@DickNemakas Год назад

They already do this with Hayabusa engines. Look up amateur F1 Radical cars. Very common in that field. But still VERU COOL. My brother-in-laws are mechanics for these types of race cars.

@AngelAndTheWolf Год назад

@@DickNemakas I know. The Arial Atom V8 is two Hayabusa engines joined, but only one transmission.

@musclecarengines Год назад

This is perfect for heavy duty and semi trucks.

@guillermogil3391 Год назад

This is AMAZING

@asdfdfggfd Год назад

This is very cool as a model gear box, it would be neat to see you do your level best to make a robust gearbox.

@andrewmcbain4119 Год назад

Reverse input to make it a 56 speed reduction box. Old Semi-Trucks used twin box setups with two 4 speed or a 4 and 5 speed combo. Yes I know there are 60 combinations but 4 are the same ratio.

@ampstudios4169 Год назад

Time to put this in a car to break the sound barrier

@gonzalobertomeu2938 Год назад

I love the video. What slicer did you used? Because it looks like prusa slicer and I like to know how to make the organic supports so if it's prusa slicer and you can say hoy to do it I will appreciate it

@yoltproductions3109 Год назад

it would be cool to see how different lubricants affect the output shafts speed or the gears smoothness.

@sanstime Год назад

awesome gear box

@moisesrosario9716 Год назад

Bicycles could have 12 speeds on single chainring and up to 21 speeds on triple charging (speeds "repeats" on gearing with more one chainring), so it's not that uncommon to have more than 7 speeds on bicycles This was with a derailleur, inner hubs (that uses planetary gears) can only get up to 8 speeds so far

@masonrunnels2934 Год назад

Now attach a flywheel and a hand crank and watch that puppy fly!

@matsv201 Год назад

If you do it really smarty, the compound gearbox can share the intermediate axle removing 1/4 of all the sprockets and also making it a lot more compact.

@piratenasty1096 Год назад

I need this as a toy so I can play truck driver at home after a long day of playing truck driver at work

@DestineeGrimes 5 месяцев назад

Imagine driving, and your passenger ask "so how fast does this thing go?" "Oh, haha, light speed"😂 (Dependant)

@rccrashtestology7289 Год назад

Super awesome I would love to see you put this on a child’s car with a brushless motor 😊

@RixxleSnoops Год назад

with the strength of these prints and the play in that assembly, it wouldn't work. However, the concept is brilliant and would make a funny childrens toy... "my first twin stick"

@jamesdawson5509 Год назад

Perfect for the next 'Fast and Furious' sequel.

@arnomrnym6329 Год назад

Cool. 👍🏾😎 So next step is to show us how you build it into your Pick-up! 😂

@The_hot_blue_fire_guy Год назад

But how do you do reverse? Car gearboxes have a reverse option so how do you make that? Also it would be nice to see a video of you putting a gearbox like this (but maybe not this many speed options) in a 3D printed car and use a electric motor to power the input shaft. It would be fun to see how it works while moving around.

@joshuadelaughter7968 Год назад

I'm surprised those gears were able to take that much torque.

@star_destroyer-rbdd1685 Год назад

Hey hey hey, ADD SPRINGS TO HOLD THE ARMS FROM MOVING LEFT AND RIGHT, so the ideas is to put a spring that can hold the arm in the middle so they dont accidentally engage wile your in a different step, and then the sring can flex inwords, or be flexed outword.

@j.a.r.family2576 Год назад

Just found you. Have you built a turbo system for a car like this? Would be super cool to see.

@tacobagcharlie9298 Год назад

Thats basically a semi transmission. Back in the 70s and 80s their were trucks with two shifters. A 5 speed and a 4 speed. Now days a really common one is a 5 speed with a pnumaticaly shifted 2 speed behind it. The second trans is usually called the auxillary.

@chadblechinger5746 Год назад

Super cool.

@josefix1987 Год назад

it is a very interesting idea. good luck

@jeffferryyyrippppp4629 Год назад

Future reference older trucks or twin stick trucks would have a 18 speed trans or whatever and a 4 speed spicer so every gear you can break further down using the spicer 4 times so say you had an 18 speed that would be 72 gears if you split every gear into four but the secondary is called a spicer

@MyLonewolf25 Год назад

There’s a reason large gear boxes with many speeds use “ranges” in essence a second gearbox that shifts the entire range of the second gear box It’s just more efficient

@stevemccluskey7102 Год назад

most gear boxes dont increase speed until the highest gear(s). for example, the standard 5 speed transmissions gear significantly down from gears 1-3, 4th gear is direct drive, and fifth gear is slightly over driven. most transfer cases gear down even more, and the diff gears down for the final drive ratio. most cars engines are spinning roughly 3 times faster than the axle in the highest gear. a better design for this is to either flip the input and output so you're always gearing down, or make the 1:1 gear either 6 or 7 and up or down from there, including the multipliers, which to eliminate doubling gear ratios, should be a 5 speed with 1:4.05, 1:2.05. 1:1, 2.05:1, and 4.05:1 or something similar. that way, gear 30 is 1:1 approximately, and every other gear is higher or lower than the input.

@stephenedwards5254 Год назад

You've made a 60 speed gearbox. 12 speed gearbox with a 5 speed transfer gearbox. 60 speed in total.

@ashtonstreifel1233 Год назад

Something I've always wanted to see is how the shifter in fwd cars connects to the transmission using cables

@thefrub Месяц назад

I would love to see someone make a gearbox that reverses ratios halfway through, so the outside gears are both spinning really fast and the middle gear is spinning really slow.

@nevernether3368 Год назад

I'd be interested in seeing him 3d print a clutch for this. Hook up a motor and shift through them all

@AllenSchoepflin Год назад

I wish there was a micro center near me

@Brooksie997 Год назад

Do the amount of cogs on each gear matter? Are they all the same amount? How about the spacing?

@keoy95 11 месяцев назад

I would love to have this kind of thing in a car no cap

@cal_7223 9 месяцев назад

whenever you say mega gear multipliers all i can think about is the lottery

@bentboybbz Год назад

@5:41 I would print a part like that in two pieces and join them after. Also I've seen people have success restarting a print when it's run out of filament etc. I wonder if you could lay a flat part down and get layers to stick to it. Maybe start at high temperature to help it stick and have an enclosed print bed kept at high temperature. Maybe I'm an idiot.

@omgomgomgpuppies36 Год назад

Awesome thing you made here but they were essentially doing this with spicer 6x4’s and 6x4x2’s back in the 50’s and 60’s

@yourlocalrussiankid9162 Год назад

I need this in my car, that way I can feel like Dom toretto

@DBTechYT Год назад

I'd like to know the amount of torque required for each of the different gears and how the multipliers affect the amount of torque to spin each of the different gears

@jaylanmcmurtry5317 Год назад

Miata owners on their way to fit this in

@Antichamberteam80110H Год назад

Try using herringbone gears to increase efficiency

@jatrillion Год назад

Very cool

@leoshahbazian6830 Год назад

You just made a gearbox with a transfer case. Lots of cars have two transmissions like this for 4wd and low gear ratios for high torque/low speed.

@brokeboys1388 Год назад

I instantly understood as I thought of how bikes changes two sets of gears.

@scott32714keiser 10 месяцев назад

Racheting cvt. it's a lot smaller and solves the tourqe slipping problem with normal cvt's. You just need like 8 different transmissions side by side to smooth out the bumpy output it's going to be bumpy under load maybe better for electric generators and use the electric power to run a electric motor for a more comfortable ride.

@bramweinreder2346 Год назад

If you really break it down, how many unique ratios does it actually have? 1:1 times 4 would be the same as 1:2 times 2, and I can imagine there are more overlapping ratios.

@i_cam Год назад

Is how a bike with two sets of gears work, like a 1-7 on right hand and a 1-3 on left?

@TheArmyofWin Год назад

I’m curious: did you use even-tuning 2^(1/12) gear ratio steps in your front-gear box? If so, you created essentially a 5-octave mechanical instrument, that’s tuned in a modern temperament tuning!

@benhetland576 5 месяцев назад

Late answer, but just as an observation it's pretty much impossible in real life to make gear ratios to be multiples of 2^(1/12) when using cog wheels. Each gear must have a whole number of teeth (no fractional tooth unless it's broken), which means that each ratio must be a rational number. You might be able to find some ratios that are "close enough" though 😉

@johnrtrucker Год назад

That's kinda how an 18 speed transmission works in a semi but there's 4 main gates with a high/low range selector and a high/low splitter so technically it's 16 half gears and a high/low range reverse gear