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The Skarloey Railway with Battery Power/Radio Control (009)

skarloey radio control car coke can 009




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#1 Corbs

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Posted 22 March 2017 - 22:46

I've long wanted to do a battery powered/radio control loco project, especially in 009 as I've seen so many lovely looking 009 layouts that have running issues, often it seems down to limited pickups etc.

BUT this thread isn't for debating the merits of BPRC, it's to see if it can be done!

 

I bought a Bachmann 'Skarloey' and removed all the weights inside.

 

Then I bought one of these BPRC cars for £7.49

http://www.ebay.co.u...=STRK:MEBIDX:IT

 

Then I chopped and soldered some wires.

 

Then this happened.

 


Edited by Corbs, 05 September 2017 - 13:30 .

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#2 decauville1126

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Posted 22 March 2017 - 22:54

This looks very interesting. Is the speed controllable or is it just forward and reverse?


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#3 BG John

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Posted 22 March 2017 - 22:55

Will you get all the bits inside the loco? I've got a Coke Can Car, and a bigger one, to experiment with, but haven't got anywhere yet.

 

The loco seemed to be running quite slowly, which is interesting considering the cars are built to run very fast. Presumably due to the 12 volt motor running on a low voltage. The big question for me is lack of speed control, so I'm wondering how it will look on the layout without gradual acceleration and deceleration.



#4 Corbs

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Posted 22 March 2017 - 23:02

Yeah it's just a low cost test, I'll probably fit deltang gear in the end (I have most of it and it'll be easier to squeeze in) but i wanted to see if it could be done.

 

It's just forward and reverse


Edited by Corbs, 22 March 2017 - 23:04 .


#5 Corbs

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Posted 22 March 2017 - 23:35

Ah, slightly better in a more stripped down state

 

(I don't think it could actually pull the skin off a rice pudding but the cat thinks it's very fun)


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#6 Robin2

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Posted 23 March 2017 - 09:39

That's my kind of title !

 

I am building an Arduino based BPR/C for 00 Gauge locos using an nRF24L01+ transceiver, an Atmega Attiny 1634 microprocessor and Pololu DRV8833 motor driver. Those parts cost about £8.

 

...R


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#7 Corbs

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Posted 23 March 2017 - 21:25

Sounds great!

 

Some wire rationalisation later, and a hole drilled roughly where the firehole door should be, and I can fit the body on!

I think in the final iteration, the small deltang transmitter will fit where the saddle tank weights were, and the battery will go in the cab.



#8 Robin2

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Posted 23 March 2017 - 22:05

I think in the final iteration, the small deltang transmitter will fit where the saddle tank weights were, and the battery will go in the cab.

If size matters it is hard to beat the deltang devices.

 

...R



#9 Corbs

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Posted 23 March 2017 - 22:17

I may have stumbled upon the solution, found an old John Lewis RC helicopter in the cupboard. The controller has some very dead AA batteries in and it seems I have run out of them so need to buy some before I can test it.

BUT it has speed control, and the battery and circuit board are smaller.

Attached File  IMG_8948_zpsx8268det.jpg   156.36KB   1 downloads


Edited by Corbs, 24 August 2017 - 21:36 .

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#10 phil_sutters

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Posted 23 March 2017 - 23:30

Now you just need a tiny solar panel on the cab roof and a high intensity laser pointer to provide the light!


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#11 Corbs

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Posted 24 March 2017 - 22:18

Right. That helicopter post ^ is daft nonsense. Helicopters don't have up and down control. They just have up - gravity takes care of the down!

However, the helicopter yielded a nice small battery.

I thought, 'why not bite the bullet and try the deltang kit you have in the drawer?'

I used the switch and charge socket from the remains of the car, and spliced the helicopter battery in to the deltang Rx using a bit of brass strip for now.

Read the instructions carefully, it switched on! Managed to bind the transmitter and receiver together, and......



#12 Robin2

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Posted 24 March 2017 - 22:47

Why is that the loco ALWAYS moves in the opposite direction to the way the knob is turned :)

 

(And, NO, I neither need, nor expect an answer)

 

...R


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#13 Corbs

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Posted 25 March 2017 - 13:49

Mixed news.
Good:
Here's a demo of the inertia control on the deltang controller and receiver.

Bad:
Just tried to charge the battery using the charging ports from the helicopter, connected the leads the wrong way around. Whoops, it's dead now.
I found some more bullets to bite, and have ordered some proper gear from Micron radio control.


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#14 Corbs

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Posted 27 March 2017 - 17:50

Since I've now committed to 'doing it properly', I've placed an order with Micron Radio Control for a USB charger, a suitable battery with connectors, and will wire it all up when those arrive. 

 

Once it's working, I'll post up a price list of what I've used so anyone can use it as a reference if you want to convert a 009 loco cheaply.


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#15 Dave John

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Posted 28 March 2017 - 12:48

Hmm, interesting stuff. Food for thought as ever corbs. 

 

Dawsholm gasworks, which was fed by the CR and the NB had some 2'6" fireless engines. I'm tempted...... 



#16 decauville1126

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Posted 28 March 2017 - 14:35

http://www.freerails.com/

 

Has lots of info, particularly the Deltang stuff. And the chap who runs Deltang is on there and readily answers queries in a helpful way.

 

I've been following this thread with interest, having already done a 009 Narrow Planet Baguley by copying Frank/Fallen's thread on here using Deltang, and now an SM32 loco, again with Deltang. It's a learning curve, and I found the whole minimum voltages quite confusing. But there are many helpful souls on here who are far higher up the tree to guide. 


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#17 Corbs

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Posted 29 March 2017 - 20:54

Thanks! I have signed up for an account.

 

This isn't a huge update, but I am quite pleased with it. I got my new kit from Micron in the post yesterday and soldered something together before I realised I was probably too tired to be doing soldering.

The new receiver can fit in the bunker (with a handy slot I cut in it) and I'm going to mount the switch and charging port into the body. The only thing left is the battery, which will need to go in the cab, but I should be able to hide it with some crew members.



#18 Corbs

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Posted 04 April 2017 - 22:36

Right! Here's what I did...

Drilled hole in styrene strip. Drilled hole in smokebox, filed out to a rectangle. Glued styrene in

Attached File  IMG_9111_zpsasra74oy.jpg   111.28KB   1 downloads

 

Fitted body, crammed the electrics in (REALLY crammed it in)

Attached File  IMG_9113_zpsfvwefeah.jpg   148.49KB   1 downloads

 

Here's how it charges! Using my Anker power brick, piped to the plug in the smokebox. The on/off switch is in the cab but needs a permanent fixing. At the moment I'm just so pleased it all fits in.

Attached File  IMG_9118_zpsoebjz5gk.jpg   167.11KB   1 downloads

 

And it works! Please excuse the galloping in reverse, I think the front axle is loose.


Edited by Corbs, 24 August 2017 - 21:32 .

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#19 Robin2

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Posted 05 April 2017 - 09:43

Out of curiosity, what are the dimensions of the electric motor in the little red loco?

 

I have motors that look similar but are shorter - 10mm across the flats and 12mm across the rounded sides. I got some of my motors from cheap servos and they work very well with a 1S LiPo whereas I have others (same physical size) that need a higher voltage for the same performance. The size seems to be known as N20 based on Mabuchi nomenclature.

 

The motors are very cheap but the problem is trying to find out which winding they have before buying. It is probably safe to assume that a servo will always use the low-voltage version. But servo manufacturers don't say what is inside their devices.

 

...R


Edited by Robin2, 05 April 2017 - 09:44 .


#20 Corbs

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Posted 05 April 2017 - 11:59

Hmm I can try and measure it tonight.

Unfortunately it's currently sold out in the Bachmann parts shop

http://estore.bachma...oducts_id=10361



#21 Robin2

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Posted 05 April 2017 - 13:54

Hmm I can try and measure it tonight.

I would appreciate that. The motors I bought cost £1.50, not $15. Admittedly they don't have a worm gear. The Servo from which I took the motor cost about £4 - and you get lots of free gears with it :)

 

To be honest, I have been wondering if the cheap low-voltage motors would be useful in your loco.

 

...R



#22 Corbs

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Posted 29 April 2017 - 22:10

I wanted to tidy up the BPRC installation on Skarloey, as well as repaint it.
 
Stripped the chassis back
Attached File  A2AFBEB8-4F04-4EB4-89CA-2E8992C9B542_zpswatm88f6.jpg   144.38KB   3 downloads
 
Much chopping and cutting on the section of chassis under the cab
Attached File  7FD51CEE-E005-4B92-951C-AC553D6DACFE_zpsv9ogzr39.jpg   165.21KB   1 downloads
 
Here you can see the gap this makes, the switch will go neatly here.
Attached File  6D56D47E-0131-4DE0-87D7-2B85786AFA46_zpsqejx45im.jpg   181.97KB   1 downloads
 
and here we are part way through the repaint. The saddle tank needs rubbing back and handrails added before a top coat.
Attached File  659A6766-221C-41F6-9129-FB9D4F857328_zpswnofaxzw.jpg   183.4KB   1 downloads


Edited by Corbs, 24 August 2017 - 21:33 .


#23 Robin2

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Posted 30 April 2017 - 08:36

In the interest of having a minimal space "switch" I hit on the idea of sliding in a piece of 5 thou brass to bridge the gap between the battery contact and the power bus. It has the great additional advantage that, if the "switch" is on the shelf the power cannot possibly be switched on :)

 

...R


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#24 Corbs

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Posted 05 May 2017 - 10:43

Sounds a good idea!

 

I've managed to fit the Narrow Planet 3D printed smokebox door. I had to grind a bit of material out of the back to clear the charging plug, but it now fits snugly with some black tack holding it in place. The cab is a lot tidier with less wiring now the switch has been relocated.

 

The saddle tank has been repainted and the loco reassembled. I think it looks quite smart now, really pleased so far.

 

Attached File  3E25FB74-0113-4ACC-B119-CC7981D44F94_zpsaznovflb.jpg   102.82KB   1 downloads

Attached File  AA7C66B6-F54E-4E73-BFBB-3FBD8D00FF2E_zpskdmgtoh8.jpg   97.59KB   0 downloads

 

I'm debating putting a TR-style wooden door onto one side of the cab, my intended model is of the Skarloey Railway in the 1940s and 1950s - the 'lean years' - hence the red dome and not a shiny brass one.


Edited by Corbs, 24 August 2017 - 21:35 .

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#25 Corbs

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Posted 08 May 2017 - 21:27

Here's a little demo/test I did this afternoon to show how the charger plugs in, where the switch is located, and how long it lasts on a charge. It's come a long way since the first post, I think.

 

 

Attached File  D04AA7A8-21C5-48E9-A5F6-68A222368B11_zpsu3j38zjj.jpg   133.23KB   1 downloads


Edited by Corbs, 27 August 2017 - 23:05 .

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Also tagged with one or more of these keywords: skarloey, radio, control, car, coke, can, 009