Endoor: N Gauge Railway

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@mortenw7777 Күн бұрын

soldering paste helps

@thevitagenplus 2 күн бұрын

Train Dash

@chrisruth7057 6 күн бұрын

Aaaw that is so adorable 🥰

@icebabyjkee 8 күн бұрын

Добрый день, подскажите, можно на один трэк использовать 2 локомотива?

@endoorrailway 7 күн бұрын

Hello, multiple locos can go on one track, but can't be controlled independently of each other. My HST is technically 3 locomotives - the two driving cars at either end and the motorised buffet car near the middle.

@franknapolitano9144 10 күн бұрын

Is T-Gauge smaller than Marlkin Z Gauge ?

@endoorrailway 10 күн бұрын

Yes - it's half the size of Z Gauge 🙂

@PatGilliland 11 күн бұрын

This is a great project. Scenically it's going to look wonderful with the HST travelling down that long sweeping curve.. Looking forward to further episodes.

@endoorrailway 10 күн бұрын

Thanks 🙂 I certainly like how the trains look sweeping along that curve at Dawlish, hopefully I'll be able to replicate it well enough!

@lostcarpark 14 күн бұрын

Great information here (both in the video and in the comments). All we need is for someone to make a RP2040 board small enough to fit in a N-gauge loco.

@endoorrailway 13 күн бұрын

Thanks 🙂 That would certainly make things easier, though I think it would be hard to make a development board that small, given the large terminals around the edges. The RP2040 has lots more pins than should be needed for decoder purposes, so not connecting most of them to any terminals would help. Ultimately I'm not expecting to use the RP2040 for a final solution, but the Pico is what I've got available already and am (relatively) familiar with using in a basic way.

@lostcarpark 12 күн бұрын

@@endoorrailway As a development board, the Pico is fine. It would be amazing to develop a board with a RP2040 (though another microcontroller would also be fine), the voltage handling circuitry and a speaker, in a form factor that fits most N-guage locos,

@patrickrobinson317 15 күн бұрын

Actually - The T stands for 'Trans'. 😊

@endoorrailway 10 күн бұрын

I thought I'd seen a definition of TGauge on tgauge.com, but can't find it now. The Wikipedia article says it's either "Three-millimetre" or "Third-of-N". Where have you seen that the T stands for Trans?

@gingdongfooee 18 күн бұрын

Maybe consider using Rust, rather than C or C++, and gives comparable performance, and pushes most errors and bugs from run time to compile time. Sadly though Rust programs are likely to us more RAM than C code.

@endoorrailway 17 күн бұрын

I am indeed considering it - besides a quick search a month ago I don't know anything about it, but if it's going to be a major language that is fast but removes lots of memory management errors then it would be useful for me to learn. It caught my attention when the Pi Pico 2 launched and advertised support for it. From what I found there's support for Rust with ATTiny microcontrollers too, though I don't know how good it is. Thanks for the suggestion 🙂

@jessecaldwell9781 18 күн бұрын

If both of the locomotives are powered, the one running in reverse could be pushing the cars off the track. Try running forward without the other locomotive. The theory I have is that both motors at either end is creating an accordion effect causing the cars to derail.

@endoorrailway 17 күн бұрын

They could be, yes - because the wheels are magnetised the coaches don't roll nicely, but I wonder if having all the power cars in the middle of the train would work a lot better. Thanks for the comment 🙂

@bsavagestudios 18 күн бұрын

I've seen Z but never T

@paulwhite6543 19 күн бұрын

I am glad I felt this page I found out about a T gauge about six months ago I’m really interested in it and you seem very intuitive on what you’re doing. I plan on doing a layout of the big sir in California.

@endoorrailway 17 күн бұрын

I'm glad you like it too 🙂 I didn't know about it, but having just done a search about it I think the Big Sur would make for an excellent layout - you'll have the space to fit in big mountains etc.

@leapofshed 20 күн бұрын

Great video, really interesting. I would recommend taking a look at the PIO feature of the RP2040, I think you should be able to implement all of the timing critical low-level stuff with PIO, and just deal with protocol level stuff in micro-python.

@endoorrailway 20 күн бұрын

Thanks! I didn't know about PIO before making this video, but quite a few people have said likewise. Thanks for the suggestion 🙂

@jeromeschwartz3699 21 күн бұрын

I just saw the Lego guy!!!

@xXxCobraCommanderxXx 21 күн бұрын

I love that spot in Devon. So lovely.

@IFFB714 22 күн бұрын

😮 that is unbelievable small, I NEEEED IT!

@tenminutetokyo2643 23 күн бұрын

You could build an entire city in a room at that scale.

@endoorrailway 22 күн бұрын

It's a great scale for getting a big context around the railway 🙂

@MasterDrawer101 23 күн бұрын

New favorite channel. Nice hobby mate.

@endoorrailway 22 күн бұрын

Thanks 🙂

@sailordude2094 23 күн бұрын

Thanks for the video, that train looks cool! I would like to watch Gomez Adams blow it up.

@cv507 23 күн бұрын

zööphörrp imagine making stuff under an extra large magniFiehr just to make it about realistic on cäm v?v

@blooddude 23 күн бұрын

Why aren't you using a simple voltage divider?! You could get 3v out by tapping the midpoint between a 100ohm and 30ohm resistor pair. The voltage regulator is overkill and might introduce a whol bunch of other issues.

@CauseOfBSOD 23 күн бұрын

Your multimeter likely doesnt measure peak voltage in ac mode, since if it did it would divide it by the square root of 2 before displaying it (since this resulting voltage value is the equivalent of the dc voltage that would dissipate the same power in the circuit, but only if the ac waveform is a sine wave). More likely you have a good multimeter that actually performs integration on ac waveforms

@endoorrailway 23 күн бұрын

You know, I never even considered that I might have a good one! I _think_ proper signal integration in AC mode is the first explanation I've heard that seems to explain why it gets both the sine and square waves correct. Thanks 🙂

@bonesg3385 23 күн бұрын

I never heard of T gauge. I would like to have one just to collect. But I prefer other scales better. It looks like this would have problems.

@endoorrailway 23 күн бұрын

I haven't run this one a large amount, even though it's been more than a year since I got it - people who've used T gauge much more extensively say that it's essential to be meticulous with keeping track and wheels clean.

@MTMByt 24 күн бұрын

The byte train was so cool

@endoorrailway 23 күн бұрын

Thanks for saying so! There was a point when I was folding all the bits of paper where I was doubting the sanity of putting the time into it, so it's good to know when people enjoy it 🙂

@MTMByt 23 күн бұрын

@@endoorrailway It was 100% worth it. I'd love to see you do it again if its needed in a future video. As well as being fun to watch, it did genuinely help me understand better

@endoorrailway 22 күн бұрын

@@MTMByt Awesome, I'm glad it worked for both purposes 🙂 I'll see how things pan out - at the moment, nearly a month from when I filmed that part, those wagons all still have their binary covers on, so it would be easy to re-use them.

@immort_Draconis 24 күн бұрын

finally a train set i can afford...maybe

@endoorrailway 23 күн бұрын

I have no idea what you can afford, but a word of caution: the scale is a lot smaller, but the price only a bit lower, at least in comparison to N gauge. Sadly model trains remain very expensive for what they are.

@isthattrue1083 24 күн бұрын

OMG! Those are like Micro Machines but working trains! That's awesome!

@endoorrailway 23 күн бұрын

It's mind-boggling, isn't it?! I never had train micro trains, but having recently (re-)seen them in the original Home Alone movie, I think T| might be a fair bit smaller 🙂

@chrisruth7057 6 күн бұрын

@@endoorrailwayLOL😂😂😂😂 if you took the t.set outside while charged on a picnic table a chipmunk 🐿️could jump on the table think it's a piece of food & try to eat the puny engine then spit it out 😖💨

@MinifigJez 24 күн бұрын

KZbin JUST recommended this video to me. and I'm SO glad it did! I've had N-Guage nearly all my life, since buying a Farish cattle truck, on holiday aged 5 years old! T-gauge is properly mental though, I can't believe something that small works, it looks amazing. BUT... my favourite part.... You have a Metroliner in the background!!!!! (My KZbin Channel is Lego based, and I do a lot of train videos!) You've gained a new subscriber!

@endoorrailway 23 күн бұрын

I'm glad you liked the video and T gauge! I put the Lego train in as something of a recognizable scale - I've had that for about 30 years and it still works! (Though it spent a lot of those years not doing any work in an attic). Thanks for the subscription - I shall have to check your channel out too 🙂

@MhLiMz 24 күн бұрын

It looks even smaller than Z-scale

@endoorrailway 23 күн бұрын

Yes - it's half the size of Z 🙂

@james8449100 24 күн бұрын

What voltage does it use? I've seen these little sterling engines with usb out. I've been desperately thinking of a use for one. And it would be a cool power source

@endoorrailway 23 күн бұрын

The controller the set came with is pulse width modulation at 5 Volts, so USB would be powerful enough. I think that would be a super-cool way to power a T gauge set!

@adamchurvis1 24 күн бұрын

The thing I really love about T gauge is that you can crank up the speed really high and they stay on the track in the corners. I rigged a 1,500 megawatt transformer to mine, and I got the speed up to about 8,700 miles per hour (at scale, of course) on the straight and it hugged like a koala bear on the curves. For extra fun, you can glue live cockroaches to them and then go really fast.

@endoorrailway 23 күн бұрын

I'm glad you're able to enjoy T gauge... personally I enjoy the more traditional speeds and cargoes 😉

@adamchurvis1 23 күн бұрын

@@endoorrailway Ever try the cockroaches? Fun.

@endoorrailway 22 күн бұрын

@@adamchurvis1 No, I'm not into playing with little creatures, and happily we don't have any cockroaches here 🙂

@MountainHomeJerrel 25 күн бұрын

Heh. Awesome. I don't even know anything about model trains.

@endoorrailway 23 күн бұрын

I'm not sure what the KZbin algorithm is up to suggesting this to you if you're not into model trains, but I'm glad you seem to like it 🙂

@MarkWilliams-w8g 25 күн бұрын

N scale is small enough for me. I can barely see it let alone anything smaller... Still. This tiny little set is really cool!.

@endoorrailway 23 күн бұрын

I think N scale (or 1:148 for UK stuff) is the ideal - lots of detail and features are possible whilst still getting a relatively large modelled area and length of trains, but I do enjoy the T too 🙂

@MarkWilliams-w8g 23 күн бұрын

@@endoorrailwayOkay. So would you use Z scale scenery and so forth if you built a layout or, are there T scale items available ?.

@endoorrailway 22 күн бұрын

@@MarkWilliams-w8g There are some T scale scenic items, like buildings, cars, people, trees, but there aren't loads of things. I wouldn't use any buildings or such from a much larger scale like Z, but I think when it comes to flocks and scatters it has to be the same stuff, so the textures just aren't going to look as good up close. I found it difficult to choose what to use for track ballast (I made a video about that) - I think I settled on either tile grout or plaster - I'll have to look back at my notes when I come to do that!

@thomzz3449 25 күн бұрын

Don't know if this is mentioned already, but you might want use the DMA (direct memorry access) peripheral to read out the input automatically and write it to a buffer. A bit of a hassle to setup, but worth the performance as you are looking for microsecond measurements. Probably also possible to setup in python. (Not sure on this, but i think DMA is capable of transferring gpio inputs at, or near, cpu clock speeds, so might also come in handy troubleshooting as a substitute for an oscilloscope/logic analyzer) The PIO (programmable I/O) peripheral might also be a good option, as it is made with the intent of letting the user program a custom communication peripheral, with precise timing. Even more of a hassle than DMA, though😅

@endoorrailway 23 күн бұрын

Thanks for the suggestion - yes a couple other have mentioned DMA and quite a few PIO - this week I'll write up a summary of suggestions and make it a pinned post. Nobody has mentioned using DMA to turn a Pico into an oscilliscope though - that could come in handy if I'm having trouble later on having got past this accurate signal measuring step, especially as I'm trying to avoid buying an oscilliscope 🙂

@kidShibuya 26 күн бұрын

Was hoping this would be a reproduction of the iron tangle...

@endoorrailway 25 күн бұрын

I try not to make misleading thumbnails or descriptions - if it looks like it was going to be something else it's by accident.

@svernwarunos546 26 күн бұрын

In communist canada hst is a curse word.

@endoorrailway 25 күн бұрын

That's a shame - to me it's just one of the best trains ever - I don't think there are any other common uses of the acronym over here.

@ChrisEbbrsen 26 күн бұрын

Just needs a bit of tire lead beeswax to the under carriage. 4:17

@ChrisEbbrsen 26 күн бұрын

Now if you will get the Xkes out and chaparelles and miniatures them to T gauge and give us pistol controllers by Stomberg, you might peak my interest.

@endoorrailway 25 күн бұрын

I think, perhaps, this isn't quite the domain you're after 😉

@ChrisEbbrsen 26 күн бұрын

They remind me of the tiny cars my mother used to buy me. Some I associated with my earliest birthday cakes. Others would fall to pieces on warm sunny days as I played with them outside the garage. They would have been perfect arranged around tea cups. Thank you for sharing your micro trains on this fridge winter day. Now youve got to get decals for them. Happy Christmas!

@ChrisEbbrsen 26 күн бұрын

Hope you don't have any cats in the house!

@endoorrailway 25 күн бұрын

There are no cats here, so they're safe 🙂 They're also kept in a separate room with the door always closed.

@retrorewindllc9363 26 күн бұрын

Not for sure but think I remember something like this from micromachines in the 80s...

@endoorrailway 25 күн бұрын

I remember micromachine cars - if micromachine trains were similar, or if the ones in the original Home Alone movie are micromachines, then I think this is probably about half the size or smaller.

@raisagorbachov 26 күн бұрын

A transistor would work well to control those relays. You'd need to know the power consumption of the solenoid then put a resistor between the pi pico and the transistor. You'd also need a diode across the solenoid to stop current back-flowing. You could go further with electronics but I can see you're working within your comfort zone.

@endoorrailway 25 күн бұрын

Thanks for the suggestions - I should eventually build a lot more knowledge because of my attempt to make a DCC decoder, but I'm still firmly a newbie in the world of electronics! Thanks for the comment 🙂

@schrodingerscat1863 26 күн бұрын

Not a simple undertaking especially without an oscilloscope but you have the right attitude, read the spec, start simple and work up to something more feature rich. Monitoring both rails is really only done to improve reliability as it can be quite electrically noisy monitoring rail voltages. The PI pico has some clever state engine functionality on its GPIO pins that should allow you to measure the intervals without using the processor at all. This can then just DMA the results to a memory buffer for your code to look at. Using that your measured timings will be super accurate. This will however require you learning the machine code to program the state machines but I don't think it's very complicated as it only has a few instructions.

@endoorrailway 25 күн бұрын

Thanks 🙂 Yes, a few other people have mentioned the state machine on the Pico - it's not something I knew about before - thanks 🙂

@schrodingerscat1863 25 күн бұрын

@@endoorrailway After thinking about this for a while I think it would be very easy to get this working using PIO programming, it would be able to capture predefined number of bits into a register then interrupt the processor to read the register. PIO clock speeds can be set accurately so you are always sure when signals change state.

@patrick.bastiaensen 27 күн бұрын

T??????

@endoorrailway 26 күн бұрын

The gauge of the track in this scale is three millimetres - the T comes from the three.

@bryanhenderson8807 27 күн бұрын

Quite interesting. Back in the 1960's, dad and I ran HO, O and N gauge trains. He bought a set of TT gauge, tiny treble and ran it on the floor. It always derailed when going through the tunnel, but it was still fun.

@endoorrailway 27 күн бұрын

Those sound like fond memories - hopefully my children will think back in a similar once they've grown up 🙂

@bryanhenderson8807 26 күн бұрын

@@endoorrailway They probably will. Dad and I also walked along the railroad tracks collecting spikes. I painted one gold

@vincentzito3933 27 күн бұрын

How do these compare to z gauge?

@endoorrailway 27 күн бұрын

I don't have any Z gauge so can't show it, but T gauge is half the size of Z gauge - side-by-side in other people's videos it makes Z look quite big!

@jeremygeorgia4943 27 күн бұрын

That's fascinating, but I'd also expect it to have an even harder problem with dust, unless the room has an air filter.

@endoorrailway 27 күн бұрын

Others who've run T Gauge a lot more than me say that keeping them meticulously clean is essential. My railway room is relatively dust-free because it's usually shut off from the rest of the house, but doesn't have an air filter.

@peterhoulis1184 28 күн бұрын

Nice but TOO small

@endoorrailway 27 күн бұрын

I think a lot of people will agree with you - I doubt this scale will ever get super-popular.

@robertj1701 28 күн бұрын

What is the point of watching a toy train going around in a circle??? Watch it for one lap and be done! Nothing else will happen!

@endoorrailway 28 күн бұрын

What's the point of a picture on a wall, or an ornament on a shelf? They don't even move.

@theslicefactor4590 28 күн бұрын

The quality of everything is declining 😔

@endoorrailway 26 күн бұрын

It would be sad if that's the case. My own experience is that locomotives and rolling stock are far worse than other things involved in a model railway, and in other areas of life quality is often fine - it shows up how much lower Dapol in particular seems able to achieve.

@RobSchofield 28 күн бұрын

Nyquist in frequency domain, rather than real time edge detection?

@endoorrailway 26 күн бұрын

I hadn't heard of it before making this video, but someone else mentioned Nyquist too. The highest frequency would be the shortest DCC "one", which is 52μs - that would make the Nyquist frequency 26μs. With 26μs samples a DCC "one" of 64 could potentially be measured as lasting 78μs, but the shortest a DCC "zero" could be measured at is 104μs. But with a 29μs sampling frequency a similar thing comes out - max One is 87μs, minimum Zero is 116μs. I think if the interrupts run quickly enough when programmed using C (which I fully expect they will, based on what quite a few people have said), then that's probably the most elegant way to program things. Thanks for the comment 🙂

@DavidSimons-ss5kn 29 күн бұрын

Not much chance of fitting sound chips in these I suppose?!!! I'm amazed how good the sound is in N considering.

@endoorrailway 29 күн бұрын

I've wondered what might be possible - if it wasn't confined to just the loco I think it would be possible to get a specially-shaped board into a coach, and capacitors would be needed because the power to the tracks is in pulses rather than continuous... but I'm not sure a speaker that's small enough would sound very good, or be louder than the motor 🤣

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