!!

Not Registered?

Welcome!  Please register to view all of the new posts and forum boards - some of which are hidden to guests.  After registering and gaining 10 posts you will be able to sell and buy items on our N'porium.

If you have any problems registering, then please check your spam filter before emailing us.  Hotmail users seem to find their emails in the Junk folder.


Thanks for reading,
The NGF Staff.

Author Topic: Cheap dc for rolling road  (Read 209 times)

0 Members and 1 Guest are viewing this topic.

Offline Henners84

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 18
    • Awards
Cheap dc for rolling road
« on: March 28, 2020, 01:28:58 PM »
Hi, I have a dcc layout. I have a dcc concepts rolling road. What is the cheapest way to set up dc to test and run in my locos on a small strip of track before fitting a dcc decoder?
Thanks,

Offline Railwaygun

  • Moderator
  • Trade Count: (+2)
  • Full Member
  • ****
  • N Gauge Society Number: 21889
  • Posts: 5419
  • Country: gb
  • Gender: Male
  • Keen on Military Rail, Kato Unitrack, & Z21/DCC
    • Railwaygun, Armoured train and Military Railway group
    • Awards
Re: Cheap dc for rolling road
« Reply #1 on: March 28, 2020, 02:29:00 PM »

fit DC blanking plate to test loco, in place of DCC chip

mount a bit of sraight track on a board, - a bit longer than your longest loco.

clean the track! 

attach  2 soldered wires to the rails

affix the DCC running road parts

use a 12v supply - like this, connected to the rails  :

eBay item number:383372034059 (£7-£10)

how it works:

https://www.youtube.com/watch?v=XAwF7CMXOrc

Simples?
This has been a public service announcement
It may contain alternative facts

Caveat lector

The largest Railwaygun, Armoured Train & Military Rail group in the world!
https://groups.io/g/railwaygun/topics

My Military Rail Pinterest area
https://uk.pinterest.com/NDRobotnik/

10mm / N armour Threads
https://www.10mm-wargaming.com/

Motto: Semper ubi, sub ubi

Offline Henners84

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 18
    • Awards
Re: Cheap dc for rolling road
« Reply #2 on: March 28, 2020, 02:53:27 PM »
Ah, maybe should have explained better. Part of the reason is to test locos before soldering in the decoder.

Offline ntpntpntp

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 4520
  • Country: gb
    • Awards
Re: Cheap dc for rolling road
« Reply #3 on: March 28, 2020, 03:25:55 PM »
You just need a reasonable DC controller, preferably pure DC.    Loads of them on ebay, for example Bachmann or Hornby items ex train sets which may not be top quality but will do the job. Just keep in mind that depending on how they are powered, some of those cheap units can go quite a bit higher than 12V when fully turned up, so use with a voltmeter I suggest.

Many many years ago I took the original wire-wound rheostat out of an old H&M Clipper and fitted a Gaugemaster 100 Panel mount controller. It works very well for this purpose and as an emergency spare for my layout.

Certainly not a cheap option, but if you're serious about electronics etc. then I would recommend having a bench power supply with meters, which also doubles as an excellent accurate DC controller and you can see the voltage and current usage of the loco - very useful! This is what I now use for bench testing. I have a cross-wired DPDT switch for easy direction swapping.  This one was £55 but I use it for all my electronics development etc. as well.




« Last Edit: March 28, 2020, 03:42:19 PM by ntpntpntp »
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!

Offline Railwaygun

  • Moderator
  • Trade Count: (+2)
  • Full Member
  • ****
  • N Gauge Society Number: 21889
  • Posts: 5419
  • Country: gb
  • Gender: Male
  • Keen on Military Rail, Kato Unitrack, & Z21/DCC
    • Railwaygun, Armoured train and Military Railway group
    • Awards
Re: Cheap dc for rolling road
« Reply #4 on: March 29, 2020, 02:05:42 AM »
Ah, maybe should have explained better. Part of the reason is to test locos before soldering in the decoder.
omit line 1
goto 2
This has been a public service announcement
It may contain alternative facts

Caveat lector

The largest Railwaygun, Armoured Train & Military Rail group in the world!
https://groups.io/g/railwaygun/topics

My Military Rail Pinterest area
https://uk.pinterest.com/NDRobotnik/

10mm / N armour Threads
https://www.10mm-wargaming.com/

Motto: Semper ubi, sub ubi

Online sprogman

  • Trade Count: (0)
  • Full Member
  • ***
  • N Gauge Society Number: 17786
  • 2mm Association Number: 4557
  • Posts: 389
  • Country: gb
    • Awards
Re: Cheap dc for rolling road
« Reply #5 on: March 29, 2020, 10:06:04 AM »
What sort of locos?

RTR or home built?

Old or new?

I never bother running in on DC. I don't even have a DC controller.

What I do have is a short length of track driven from a decoder. Put the rolling road and loco on that and run it from a DCC system. No need to touch the loco internals and the high frequency PWM from a decent decoder looks enough like DC in any case. You can also look at the mechanism at really low speed more effectively than a DC controller.

 

Please Support Us!
May Goal: £60.00
Due Date: May 31
Total Receipts: £95.00
Above Goal: £35.00
Site Currency: GBP
158% 
May Donations

anything
SimplePortal 2.3.5 © 2008-2012, SimplePortal