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Purchased A 'FlySky' FS-GT2E Transmitter & Receiver
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 Posted: Fri Feb 23rd, 2018 07:58 pm
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Michael M
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Si,

In retrospect I probably should have just started with 'FlySky' in the beginning of attempting R.C. rather than using R.C. cars for electronic parts.
Would have been much easier.
But, I also learned a lot in the process.

I'd make more progress on my 0-4-0 conversion if I didn't have a number of projects going on at once.
I have a building under construction to house the rotary dump, a stub switch, tumbleweeds that need to get glued down,
and the Salt Flats extension (construction temporarily on hold due to rain).


"Looks like you mighta been RIPPED ORRRF ! by about $0.32c !! :f:"


As cheap as I am sometimes, I think I can handle the $0.32c
Maybe the difference is in the exchange rate?

Still, I think you've shown that BPRC can be inexpensive and pretty simple to do. 
The forums show that more people are getting interested.


The Roundhouse Gang is having a swap meet at the Santa Fe station in San Bernardino Saturday (no affiliation),
so I get to do a little shopping for deals and materials for future builds.
Ya never know what you might find.




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Michael
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Nye, Inyo & Esmeralda Railroad

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 Posted: Sat Feb 24th, 2018 07:29 am
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Rick Dow
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The knowledge gap that exists between BPRC newbies like myself
and some of the discussions that take place on this forum is quite wide.


I believe for instance, I know just enough about ESC boards mentioned in this topic, to be dangerous.

I assume that an ESC provides a modulated digital signal to increase or decrease the amount of current to the DC motor
(thus increasing and decreasing motor speed)

But it appears from Forum conversations that some Receivers don't come with an ESC built in.

I believe it was mentioned recently here on this Forum
that the varied requirements of different RC applications means that varied ESCs are necessary.


There are a lot of assumptions mentioned here. 
I suppose that when a person gets better and better at the electronics of BPRC modelling,
they begin to mix and match the circuitry to better fit the "space available",
to "provide the most bang for the buck" and to "best fit the Radio Control situation.


If someone gets some free time, a short dissertation on how all these functions go together,
(just a fireside conversation about how things go together and of different ways to skin a cat)
will give the readers (especially myself) more background. 


Discussing my recent advances in BPRC modelling with my brother-in-law
has often left him completely baffled at times because when we started he hadn't even heard of a LiPo battery.
So explaining what I'm doing has taken some time (we walk two miles together each morning)
and he always has me going back and re-explaining various tid-bits. 

Point is, if anyone wants to describe in 500 words or less how BPRC works best for you,
it will probably be very helpful to me
and I know darn well it will be very helpful to those new modellers who come to this Forum for start-up information. 

Dumb it down, don't immediately jump to brain surgery, Maybe make it a Children's Book. 

Include anything and everything that comes to mind
from battery protection boards to voltage increasing boards to LiPo charging challenges.


Thanks as always,

Rick



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 Posted: Sat Feb 24th, 2018 08:36 am
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W C Greene
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http://freerails.com/view_topic.php?id=1221&forum_id=45

Howdy Rick

Maybe this link will explain something, it is the start of r/c on this (or any other) forum.
I hope it explains something you may want to know.
I am not a tekkie or 'lektrical egghead.
There's a bunch to read but as they say on X FILES  "the truth is out there !"

Woodie




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 Posted: Sat Feb 24th, 2018 09:10 am
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Tony Walsham
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I would agree that the link takes you to the Woodie Greene post that outlines the beginning of BPRC in the smaller scales.

In Large Scale it has been common since the mid 1980's.
However, the BPRC used in Large Scale bears little resemblance to what is being developed for the smaller scales.
Most of the R/C for Large Scale is proprietary and is usually not compatible with any other brands of R/C.
Unlike smaller scales, Large Scale requires much higher voltages with Li-Ion 14.8v 4 cell packs common and 5 & 6 cell packs also used.
The use of LiPo batteries is very rare in the Large Scales.
Li-Ion batteries are nearly always fitted with built in PCB protection and balancing circuits which allow 2 x wire charging.

No one in Large Scale BPRC ever uses step-up regulators to achieve a higher voltage from fewer cells.
It is not really practical because as well as higher voltages, Large Scale locos need much higher Amperage.

The ESCs were once way too big for small scales and it was considered a good installation if R/C could be fitted into "0" scale locos.
Where conventional Digital Proportional R/C is used for Large Scale BPRC, it is pretty well all 2.4 Ghz.
There is very little different brand compatibility so most R/C used is also DSM2.
One thing common in Large Scale BPRC is a choice of operating methods.
You can have Centre OFF direction and speed control on one channel, or Low OFF direction and speed control using two channels.
The latter does give finer speed control because 300º is used instead of 90º for speed control.

R/C Receivers that have built in ESCs are rare on the ground.
The only ones I know of, are made by Deltang and uniquely use 2.4 GHz Spektrum R/C which is only compatible with DSM2 protocols.

BPRC using DCC is only just being marketed in Large Scales.
Where as I have seen much development work going on in the Smaller scales.
They are a much bigger market than the Larger Scales, again mainly because of the higher Voltages and Amperages required.
I have no doubt BPRC using DCC will become quite common one day.




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 Posted: Sat Feb 24th, 2018 05:23 pm
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Si.
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" I believe it was mentioned recently here on this Forum
that the varied requirements of different RC applications
means that varied ESC's are necessary "



Hi Rick :wave:



Many electronic 'concepts', as we know, are designed with a 'modular' approach in mind.

It saves designing a single & specific solution, for every single different circumstance.

Whilst some industrial applications will always use 'bespoke' single purpose designs, many do not ...

... & it is these kinds of components that are of great use, for unique 'custom' designs to be put together. :)



A computer is a good example of this. :brill:

You choose the parts you need, for the spec you want, and assemble the parts.

One could say that the computers CPU-chip, is the receiver ...

... the monitor screen is the E.S.C. ...

... the A.C. P.S.U. or battery, is the power-source ...

... & the keyboard/mouse is the transmitter.



All these components, of which there are LOADS of different types ... L:

... are all intended to be compatible with one another ...

... & 'plug n play', leaving the choice of parts & assembly to the individual user.

Same with R.C.


- - - - - - -


I Posted this in another Thread :- :moose:



" The reason for the 'modular' approach, is simple.

Not all R.C. applications require an E.S.C. Electronic Speed Controller.


For example, neither a glider nor sailboat have a motor, so don't require an E.S.C.

The receiver can control the glider or sailboats rudder servos directly.


On the other hand.

Some applications need very very high-power E.S.C.s.

Such as speed-boats or large racing-cars.

Things like big G-scale trains, also need quite large E.S.C.s


So you can see.

The 'FlySky' receiver is 'universal' in its application across many different uses.





A receiver with built in E.S.C. can only power things within it's limitations.





If you exceed those limitations, you toast the WHOLE BOARD ! ... not just the E.S.C.

An expensive business !! "


- - - - - - -


As Tony points out.

Large Scale trains require much bigger E.S.C.s & larger/higher-Voltage batteries, than even 'O'-scale.

But the actual R.C. transmitter/receiver is the same device & protocol, which is used for smaller scales as well.



It might all sound obvious. ???

But I believe that spelling out the basics like this,  A ... B ... C ... style ...

... is the way to not only explain the 'simple' stuff to newcomers who know nothing of R.C. trains ...

... but is also the way to encourage more model railroaders to 'have a go' ! :bg:



It isn't rocket-science ! ... :dope:

... & you don't need an $$$ overdraft !! :thumb:



:old dude:



Si.









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 Posted: Wed Feb 28th, 2018 08:22 pm
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Michael M
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Found these small LiPos on eBay. 

About 25 x 17 x 7mm








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Michael
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 Posted: Sun Mar 4th, 2018 03:54 am
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Si.
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Hi Michael :wave:



I'm not entirely sure if this is gonna help converting your 'Tyco' Shifter to R.C. ! L:

Obviously NOT N.G. ... but I did come across this funky proto-photo of a rather nice Pennsy switcher.





The boiler looks kinda smaller & the domes kinda bigger.

Perhaps a bit like a 1:35n2 'upscale' might look ? ???

Look at THAT rear light !! :!:



:pimp:



There are some pretty neat AND affordable LiPo batteries on eBay ! :thumb:

LOADS in fact. :shocked:

No need at all, to pay TOP DOLLAR $$$ PRICES for a nice loco battery. :)



Rocket  :brill:  Science  ?



Si.



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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Mon Mar 5th, 2018 10:31 am
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Michael M
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Thanks for the photo:2t:

About done with the new tender. 

I've got a G scale headlight similar to the one on the tender.
 
Internet has been down for the last few days.

I'll post some photos if the phone company ever gets it together.




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Michael
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 Posted: Fri Mar 9th, 2018 05:45 am
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Si.
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Another different small E.S.C. Electronic Speed Controller, available at an affordable price on eBay.






:)



Si.



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http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Fri Mar 9th, 2018 06:59 am
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Michael M
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Rick,

Being on the cheap side, I started with R.C. using the guts from cheap little remote control cars. 

Fried a few boards ... a puff of white smoke was a sure sign that I made a boo-boo.

Now I'm quite comfortable using 'FlySky' and haven't had any puffs of white smoke.




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Nye, Inyo & Esmeralda Railroad

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