Railroad Line Forums - Lineside Signals for the B&M Eastern Route
Railroad Line Forums
Username:
Password:
Save Password


Register
Forgot Password?
  Home   Forums   Events Calendar   Sponsors   Support the RRLine   Guestbook   FAQ     Register
Active Topics | Active Polls | Resources | Members | Online Users | Live Chat | Avatar Legend | Search | Statistics
Photo Album | File Lister | File Library
[ Active Members: 1 | Anonymous Members: 0 | Guests: 107 ]  [ Total: 108 ]  [ Newest Member: Hawghead ]
 All Forums
 Model Railroad Forums
 DCC, Computers and Electronics for Model Railroads
 Lineside Signals for the B&M Eastern Route
Previous Page | Next Page
 New Topic |   New Poll New Poll |   Reply to Topic | 
Author Previous Topic: One Hare controlling two turnouts? Topic Next Topic: Tortoise and LED wiring
Page: of 7

jbvb
Fireman

Premium Member


Posted - 01/08/2017 :  12:42:17 PM  Show Profile  Visit jbvb's Homepage  Reply with Quote
The holidays, houseguests and travel left some room for progress on my signals. I completed the design for the last two interlockings and completed one:



Here's Saugus Jct. installed, with three of its four signals wired and operational. The easterly half of the crossover is Chipman St., still on the workbench being wired. Once it's in, four more mast signals remain to be built.



Country: USA | Posts: 5663 Go to Top of Page

jbvb
Fireman

Premium Member


Posted - 01/12/2017 :  11:32:26 AM  Show Profile  Visit jbvb's Homepage  Reply with Quote
Yesterday I finished installing the Chipman St. interlocking and connecting it to two of the three signals it drives. That was the last, so my signal project has reached another milestone.



The Saugus Jct. end of this diagram is different from the picture above; I didn't read my own documentation and so I had to invert the sense of relay R5T1. All I'd been able to get off Bexley Tower's antique key switches was a 'break' when the turnout was reversed. Because of the number of diodes involved, it was easier to shift two functions one contact set left.



Here's what I really hope will be the final Bexley (Tunnel West, Bexley Enginehouse and D'Arcy Ave.) drawing, with wire colors, correct labels and a few obsolete ideas cleaned up.

Next I'll use parts on-hand to build the two 3-light home signals that will finish Saugus Jct. and Chipman St. I still don't have the brass bits for the 'bracket arms' required to finish West Lynn and River Works.



Country: USA | Posts: 5663 Go to Top of Page

BurleyJim
Fireman

Premium Member


Posted - 01/12/2017 :  7:04:57 PM  Show Profile  Reply with Quote
James,

Really looking good. Your documentation and schematics will serve you well for years to come. Quite a project! Congratulations.

Jim



Country: USA | Posts: 3528 Go to Top of Page

Orionvp17
Fireman

Premium Member

Posted - 01/12/2017 :  7:36:30 PM  Show Profile  Reply with Quote
quote:
Originally posted by BurleyJim

James,

Really looking good. Your documentation and schematics will serve you well for years to come. Quite a project! Congratulations.

Jim



Amen! Looking forward to seing the results!

Pete
in Michigan




Country: USA | Posts: 6157 Go to Top of Page

jbvb
Fireman

Premium Member


Posted - 01/12/2017 :  10:42:19 PM  Show Profile  Visit jbvb's Homepage  Reply with Quote
Thanks, Jim & Pete. If you expect to be on the north side of Boston with time on your hands, let me know.


Country: USA | Posts: 5663 Go to Top of Page

Orionvp17
Fireman

Premium Member

Posted - 01/13/2017 :  10:35:43 AM  Show Profile  Reply with Quote
quote:
Originally posted by jbvb

Thanks, Jim & Pete. If you expect to be on the north side of Boston with time on your hands, let me know.



Be careful what you wish for!

And thanks!

Pete
in Michigan



Country: USA | Posts: 6157 Go to Top of Page

jbvb
Fireman

Premium Member


Posted - 01/13/2017 :  10:41:36 AM  Show Profile  Visit jbvb's Homepage  Reply with Quote
Last night I got to thinking about implementing these interlockings. Chipman St. (below) is the most complicated I've built, and it's a bit of a mess, mostly because of all the diodes I needed to logically OR multiple inputs to each signal driver's RED terminal.



The auxiliary terminals left of the top SD-3s are crowded, so are some of the main terminals and the relays' screw terminals.



I count 24 diodes in this interlocking. I drew them in a matrix, and it would have been much neater to wire it like diode matrices for yard throat control. But I'd had trouble with a matrix I built from perfboard and bare wires, so I wired this directly.

Question: has anyone found a commercial circuit board (probably for prototyping) that's a good base for building a matrix? Copper leads going one way on one side, perpendicular on the other, lead and hole spacing allowing diode installation somewhere between 1/4" and 1/2" apart?



Country: USA | Posts: 5663 Go to Top of Page

jbvb
Fireman

Premium Member


Posted - 01/19/2017 :  9:22:45 PM  Show Profile  Visit jbvb's Homepage  Reply with Quote
More progress the past few days:



The eastward home signal for Saugus Jct. with soldering complete. Red/Green bipolar LED for the High head, fixed Red Middle head, Red/Yellow bipolar LED to provide Restricted call-on into the Bexley industrial area. Finished it this afternoon (photo in B&M Eastern Route thread), three more to go.



Country: USA | Posts: 5663 Go to Top of Page

Pennman
Fireman

Premium Member


Posted - 01/20/2017 :  12:02:05 AM  Show Profile  Reply with Quote
All I can say is WOW nice work!
Rich



Country: USA | Posts: 3589 Go to Top of Page

quartergauger48
Fireman

Premium Member


Posted - 01/20/2017 :  12:02:14 AM  Show Profile  Reply with Quote
Impressive!*


Country: USA | Posts: 5669 Go to Top of Page

jbvb
Fireman

Premium Member


Posted - 01/18/2018 :  1:06:31 PM  Show Profile  Visit jbvb's Homepage  Reply with Quote
Belated thanks, Rich and Ted. My signal system has been almost complete for a year now (except for two bracket-arm masts I haven't gotten around to scratchbuilding). It's operated reliably; the only glitches were a couple of cases where a fine 'pole line' wire wasn't being well-gripped by my bargain euro-style terminal strips. When I do a 'DC Day' and run my older equipment, I do find myself wishing I'd used only DCOD detectors, but the places where I did operate just as I wish.


Country: USA | Posts: 5663 Go to Top of Page

BurleyJim
Fireman

Premium Member


Posted - 01/20/2018 :  1:36:10 PM  Show Profile  Reply with Quote
James,

I just reread this thread, and am really impressed with what you've accomplished. It's super!

Did you ever run that section of rail between Bexley and the Bexley Engine house?

Jim



Country: USA | Posts: 3528 Go to Top of Page

ed k
Fireman

Posted - 01/20/2018 :  1:50:57 PM  Show Profile  Reply with Quote
Very impressive indeed.
ed



Country: USA | Posts: 1091 Go to Top of Page

jbvb
Fireman

Premium Member


Posted - 01/20/2018 :  6:39:13 PM  Show Profile  Visit jbvb's Homepage  Reply with Quote
Thanks, ed and Jim. Jim, I'm not sure what you mean - Bexley Depot and Engine House are separated by Bexley Tunnel, which has been in operation 10+ years. I got all of Bexley's interlockings into service last winter; the missing bracket arm signals are in West Lynn.


Country: USA | Posts: 5663 Go to Top of Page

Frank Palmer
Fireman



Posted - 01/21/2018 :  10:51:16 AM  Show Profile  Visit Frank Palmer's Homepage  Reply with Quote
James I see your wiring problem, if you make these simple corrections you'll be fine.






Country: USA | Posts: 4817 Go to Top of Page
Page: of 7 Previous Topic: One Hare controlling two turnouts? Topic Next Topic: Tortoise and LED wiring  
 New Topic |   New Poll New Poll |   Reply to Topic | 
Previous Page | Next Page
Jump To:
Railroad Line Forums © 2000-17 Railroad Line Co. Go To Top Of Page
Steam was generated in 0.41 seconds. Powered By: Snitz Forums 2000