!!

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: Colour Light Signals  (Read 3517 times)

0 Members and 1 Guest are viewing this topic.

Offline Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 19626
  • Country: au
  • Gender: Male
  • Promotion remains in the future
    • Awards
Re: Colour Light Signals
« Reply #30 on: September 28, 2018, 11:08:11 AM »
Actually, I think you're right there.

It would still be cool, though, just knowing it was there and working.
Vision over visibility. Bono, U2.

Offline EastMidsCoal

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 75
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #31 on: September 28, 2018, 02:57:27 PM »
But not at Doncaster as you indicated above. The letters were just an example using two of the three letters you said could be displayed on Platform 4 at Doncaster.

If you get anything near to scale size (3mm * 3mm) it would be very difficult to see any letter shown.

Yes very valid point on both counts.  The reason for the theaters at the north end of Platform 4 (pictured) is I suspect because of the sighting issues caused by the canopy on approach, while for the the adjacent one on the main line is down to speed, so there are exceptions to the rule definitely.

I think any theatre style approach would have to be a little over scale, but interesting to see what can be done!  One thought I've got is seven 0.5mm fibre optic strands bundled together into a 7x7 grid would be 3.5mm x 3.5mm, so only slightly over scale.  Now whether anything meaningful can be deciphered from the light coming through is another issue - but I'll give it a try!

Richard

Offline ntpntpntp

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 4804
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #32 on: September 28, 2018, 03:44:22 PM »
One thought I've got is seven 0.5mm fibre optic strands bundled together into a 7x7 grid would be 3.5mm x 3.5mm, so only slightly over scale. 

49 strands!   Good luck  :D
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!
https://www.ngaugeforum.co.uk/SMFN/index.php?topic=50050.0

Offline njee20

  • Trade Count: (+4)
  • Full Member
  • ***
  • N Gauge Society Number: 22598
  • Posts: 6806
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #33 on: September 28, 2018, 04:35:40 PM »
As discussed though unless you want every conceivable combination you don't need 49, and 30ish is more likely.

A CR Signals head is just under 5mm wide, so I reckon 6-7mm would look absolutely fine for a theatre box.

Offline acook

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 73
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #34 on: September 29, 2018, 05:57:18 PM »
How about this- first one I found- must be more out there.

https://www.alibaba.com/product-detail/ultra-thin-0-2-inch-5mm_60461360995.html

Alan

Offline ntpntpntp

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 4804
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #35 on: September 29, 2018, 07:27:00 PM »
How about this- first one I found- must be more out there.

https://www.alibaba.com/product-detail/ultra-thin-0-2-inch-5mm_60461360995.html

Alan
Nice but it's a standard 7 segment display for displaying digits, rather than a full dot matrix which you'd need for representing a wider range of letters and numbers.
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!
https://www.ngaugeforum.co.uk/SMFN/index.php?topic=50050.0

Offline EastMidsCoal

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 75
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #36 on: September 29, 2018, 08:10:28 PM »
It would all depend on what characters you wanted to display.  A,C,E,F,H,I*,J,L,O,P,S,U and 0-9 are all possible.  I is an option for a model, if you were not using numbers.

Offline Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 19626
  • Country: au
  • Gender: Male
  • Promotion remains in the future
    • Awards
Re: Colour Light Signals
« Reply #37 on: September 29, 2018, 11:25:27 PM »
That is very impressive. Don't know what you'd do with a hundred of 'em, though!!
Vision over visibility. Bono, U2.

Offline acook

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 73
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #38 on: October 02, 2018, 02:29:49 PM »
Normal process is break the other 99 trying to get 1 to work.

Alan

Offline njee20

  • Trade Count: (+4)
  • Full Member
  • ***
  • N Gauge Society Number: 22598
  • Posts: 6806
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #39 on: October 02, 2018, 08:46:14 PM »
Yep, which wouldn’t do for what I want. It doesn’t look that good either IMO, the hood is too long, although I accept at that size cruelly enlarged photos won’t help.

It’s one of those things I thought ages ago ‘I wonder if it could be done’, drew it all up with how to integrate into a gantry and then have done nothing with it.
« Last Edit: January 28, 2020, 05:13:45 PM by njee20 »

Offline EastMidsCoal

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 75
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #40 on: October 12, 2018, 09:10:10 PM »
Well having recovered from a chest infection (horrid thing) I can report that my fibre optics arrived earlier in the week, so hopefully might feel like trying something shortly!  I've got some idea's if I can make things work.

Offline DarrwestLU6

  • Trade Count: (0)
  • Full Member
  • ***
  • N Gauge Society Number: 28089
  • Posts: 560
  • Country: gb
  • Gender: Male
  • Getting back into N after a long break!
    • Awards
Re: Colour Light Signals
« Reply #41 on: October 13, 2018, 06:24:23 PM »
Well having recovered from a chest infection (horrid thing) I can report that my fibre optics arrived earlier in the week, so hopefully might feel like trying something shortly!  I've got some idea's if I can make things work.

 Glad to hear you are on the mend! Looking forward to seeing the photos of the signals as they develop.... :photospleasesign:
Hogwarts to King's Cross - My layout under construction: http://www.ngaugeforum.co.uk/SMFN/index.php?topic=43358.msg536504#msg536504

Offline ahellary

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 27
    • Awards
Re: Colour Light Signals
« Reply #42 on: January 28, 2020, 05:04:29 PM »
Well having recovered from a chest infection (horrid thing) I can report that my fibre optics arrived earlier in the week, so hopefully might feel like trying something shortly!  I've got some idea's if I can make things work.

any update on the trial please

Offline njee20

  • Trade Count: (+4)
  • Full Member
  • ***
  • N Gauge Society Number: 22598
  • Posts: 6806
  • Country: gb
    • Awards
Re: Colour Light Signals
« Reply #43 on: January 28, 2020, 05:08:24 PM »
The OP's not been active in a year, and I recall reading that he'd had to curtail his layout plans, so a reply may not be forthcoming.

I'd also be interested though. I've succesfully 3D printed some Dorman LED signal heads, and have some bi-colour SMDs which I plan to try and make work.

I still like the idea of a working theatre indicator. OLED screens are getting smaller, to the extent the issue would now be trying to conceal the ribbon cable rather than issues with the size of the screen!

Offline ahellary

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 27
    • Awards
Re: Colour Light Signals
« Reply #44 on: January 28, 2020, 05:15:25 PM »
i
The OP's not been active in a year, and I recall reading that he'd had to curtail his layout plans, so a reply may not be forthcoming.

I'd also be interested though. I've succesfully 3D printed some Dorman LED signal heads, and have some bi-colour SMDs which I plan to try and make work.

I still like the idea of a working theatre indicator. OLED screens are getting smaller, to the extent the issue would now be trying to conceal the ribbon cable rather than issues with the size of the screen!
i have a 3d printer would you care to share the stl file please :) or even the drawing file pretty please

 

Please Support Us!
July Goal: £60.00
Due Date: Jul 31
Total Receipts: £70.00
Above Goal: £10.00
Site Currency: GBP
117% 
July Donations

SimplePortal 2.3.5 © 2008-2012, SimplePortal