Search found 2659 matches

by grovenor-2685
Tue Feb 25, 2020 9:53 pm
Forum: Signals and Control Systems
Topic: Lever Frames
Replies: 92
Views: 71517

Re: Lever Frames

And there is always this item from the Scalefour Stores
'PM1941LMS'
by grovenor-2685
Tue Feb 25, 2020 7:08 pm
Forum: Signals and Control Systems
Topic: Lever Frames
Replies: 92
Views: 71517

Re: Lever Frames

Worth looking at Steve Hewitt's topics on RMweb. Excellent signal building and includes Ground Signals
eg. https://www.rmweb.co.uk/community/index.php?/topic/34064-working-ground-signals/&do=findComment&comment=361235
by grovenor-2685
Mon Feb 24, 2020 10:07 pm
Forum: Chassis and Suspensions
Topic: Best wire for collectors
Replies: 10
Views: 404

Re: Best wire for collectors

Carbon based materials were also mentioned as contact materials and I wondered if this might rescue the plunger pick-up. It works for motor brushes.

The original P4/Studiolith plunger pickus used carbon but they did not seem to find favour, did anyone try them?
by grovenor-2685
Sun Feb 23, 2020 1:02 pm
Forum: Track and Turnouts
Topic: Throwing single slips
Replies: 7
Views: 282

Re: Throwing single slips

Interesting observation Jim - at Embsay the double slips were worked from 1 lever, but the single slip wasn't. No, the double slips are not worked by one lever, in each case one end is worked by the lever as numbered, the other ends are hand points. ie a second lever but not in the frame. The numbe...
by grovenor-2685
Fri Feb 14, 2020 10:56 am
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

Well done, I would not worry about changing the phone wire, these don't take much current and are designed to be miles apart, small wires are fine when they are close together.
by grovenor-2685
Wed Feb 12, 2020 7:09 pm
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

All that demonstrates that the internal wiring is not as supposed so the only way to resolve it is to trace out the wiring.
Sorry
by grovenor-2685
Wed Feb 12, 2020 5:15 pm
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

The standalone bell in the bottom two photos only seems to have E, C and L, no Z. That suggests E for the + battery/bell connection and probably c is the common return, you should be able to trace those wires easily enough. The combined instrument in the other 2 pics is more of an isueas the wiring ...
by grovenor-2685
Wed Feb 12, 2020 4:57 pm
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

I need a separate run of heavier duty wires. I doubt the wire size is a problem unless they are very long. You do need to know the wiring inside the box, if the C terminal goes to the bell as in Brian's latest diagram and there is an XR (Bell relay) then a diode across the bell is not much use, you...
by grovenor-2685
Wed Feb 12, 2020 3:01 pm
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

I think that I am going wrong at the LNWR block instrument end where, instead of C, L, Z and E there are terminals 1 -12. The bottom three (1, 2 and 3) being the bell circuit terminals. The internals of your boxes, in respect of the bells should be as Brian's diagram. Normally there should be one b...
by grovenor-2685
Tue Feb 11, 2020 4:23 pm
Forum: Semaphore Signals
Topic: Block Bell wiring
Replies: 19
Views: 750

Re: Block Bell wiring

Are you trying to use the original wiring scheme?
Can you draw out the wiring you have done so we can see the circuit?
It should not be neccessary to buy more.

How did you overcome the delay you were describing previously?
by grovenor-2685
Sun Feb 09, 2020 8:33 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

I have seen proposals for such but my take has been that they are more complex than the row of servos which I have seen done well. Fitting a microswitch on a catch handle is considerably trickier than just on the lever throw, and if you go for the first bit of movement then don't forget you need it ...
by grovenor-2685
Thu Feb 06, 2020 10:14 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

So, it is wired up (albeit temporarily for test purposes), and works perfectly.

Fast work, great, that is reward in itself
Regards
by grovenor-2685
Tue Feb 04, 2020 2:42 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Tony,
PM with address will sort it.
by grovenor-2685
Mon Feb 03, 2020 7:04 pm
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 2404

Re: Another newcomer's question re wagon suspension

Looks like this, scanner does not focus well as its not flat to the bed. Given me good service for years.
Caliper-Scan.jpg


Closest I can see on ebay currently
Mule caliper
Or you could try second hand
use mitutoyo
by grovenor-2685
Mon Feb 03, 2020 5:16 pm
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 2404

Re: Another newcomer's question re wagon suspension

For 99% of what we do the cheap plastic ones are fine, very rare that I get out my micrometer and my Mitutoyo languishes in the cupboard. The the digital caliper I got was a mistake long consigned to the rubbish.
by grovenor-2685
Mon Feb 03, 2020 4:12 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Keith, Once again this is really kind of you. I'll try to not come up with too many supplementary questions. Tony Diagram attached, hope it makes sense. Not attached anymore, after checking the data sheets in detail I had to modify the circuit slightly. Anyone who wants to use it get in touch. Rega...
by grovenor-2685
Mon Feb 03, 2020 2:09 pm
Forum: Track and Turnouts
Topic: Rivet Press 2
Replies: 16
Views: 1071

Re: Rivet Press 2

And, remarkably the machine looks identical!
by grovenor-2685
Sun Feb 02, 2020 9:12 pm
Forum: Radio Control
Topic: More Radio Control Questions
Replies: 6
Views: 315

Re: More Radio Control Questions

http://bluerailtrains.com/latest-news/
If you want radio with DCC.
by grovenor-2685
Sun Feb 02, 2020 4:49 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

OK I have details of the megapoints so I will knock up a wiring sketch. I think the simplest solution is to use a relay and diode to do the slotting, they should be located close to the megapoints. Suitable relays are best mounted on printed circuit board such as a small piece of stripboard. This ca...
by grovenor-2685
Sun Feb 02, 2020 3:49 pm
Forum: Signals and Control Systems
Topic: Lever frame mk 2 and the locking frame
Replies: 132
Views: 7493

Re: Lever frame mk 2 and the locking frame

Do you know where I would find a wiring diagram that would facilitate the distant signal located on the same post as signal 31 automatically reverting to 'On' when my section signal is replaced to danger? I'm using servos. I've seen it demonstrated on YouTube but there is no mention of how it is wi...
by grovenor-2685
Fri Jan 31, 2020 10:45 am
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 2404

Re: Another newcomer's question re wagon suspension

The Standard axle length, and W-iron spacing were defined here https://www.scalefour.org/history/protofoursociety/manual/4.1.12-rolling-stock/ And, for many years commercial 00 wheelsets from Hornby and Bachmann used the same 26 mm axle length. Only in recent years with fragmented manufacture in Chi...
by grovenor-2685
Thu Jan 30, 2020 8:29 pm
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 2404

Re: Another newcomer's question re wagon suspension

I have just got back to my 'workbench' and decided to look at my stock of Society w irons and society supplied 3 hole disc wheels. Following on Tims comment on the 14 Jan i find the following dimensions: Axle length is 24.2.. (what happened to a standard 26mm?) The back to back on the society W Iro...
by grovenor-2685
Tue Jan 28, 2020 10:18 am
Forum: Track and Turnouts
Topic: Roseladden Wharf development
Replies: 5
Views: 447

Re: Roseladden Wharf development

Unless the loop is to be used by passenger trains, which does not look likely, then it does not need to be protected, however the main line does need to be protected from the loop and sidings which means you do need a double slip in place of the single.You can then shunt the yard from the mineral br...
by grovenor-2685
Mon Jan 27, 2020 4:15 pm
Forum: Track and Turnouts
Topic: Rivet Press 2
Replies: 16
Views: 1071

Re: Rivet Press 2

That may be so, although I would suspect the tool cost would be the higher of the two. And before Ebay I imagine most old letterpresses just sat in attics or went in the skip as businesses stopped using them. Perhaps worth asking for a price from those who make the rail filing jigs. Nb. One problem ...
by grovenor-2685
Mon Jan 27, 2020 3:16 pm
Forum: Track and Turnouts
Topic: Rivet Press 2
Replies: 16
Views: 1071

Re: Rivet Press 2

Its always been the tools rather than the press that are scarce.

Go to advanced search