Search found 622 matches

by Martin Wynne
Sat Dec 07, 2019 8:35 am
Forum: Track and Turnouts
Topic: C&L track base
Replies: 4
Views: 369

Re: C&L track base

One possible way to fix it is to use SMP Scaleway rail in them. SMP rail is, or at least always used to be, under scale width at 0.8mm, instead of scale 0.92mm. Injection-mouldings shrink with age if not injected at a high enough pressure. Which in turn requires having a moulding machine with suffic...
by Martin Wynne
Sun Oct 20, 2019 8:27 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 126
Views: 21780

Re: Turnout construction - Question here please.

Julian Roberts wrote:Shame Tim's film doesn't show this part of the process!

Hi Julian,

It does show knuckle bends being made, at around 6 minutes 30 seconds in.

Here is another old film about junction renewal:



cheers,

Martin.
by Martin Wynne
Sat Oct 19, 2019 10:36 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 126
Views: 21780

Re: Turnout construction - Question here please.

Hopefully Tony or Martin will correct me if this is wrong. Hi Julian, It is difficult to make a symmetrical bend if one side is held in pliers and the other side is made with fingers. The side held in pliers will be dead straight up to the start of the bend. The side held in fingers will be slightl...
by Martin Wynne
Thu Oct 17, 2019 8:45 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 126
Views: 21780

Re: Turnout construction - Question here please.

One question - I had thought switches and crossings were normally straight even on curving track except on the GWR. But is that wrong? Hi Julian, Yes it's wrong. It seems to be a common misunderstanding, despite a glance at any photograph of curved pointwork showing otherwise. When switches and cro...
by Martin Wynne
Fri Oct 04, 2019 9:00 pm
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 249
Views: 23887

Re: Scaleforum 2019

It seems some photos, especially from iPhones, can have orientation info built in. Yes the orientation is in the EXIF segment of the image file. Browsers can rotate such images automatically if you include in the CSS: img { image-orientation:from-image; } Or at least Firefox can. I just added the a...
by Martin Wynne
Fri Oct 04, 2019 2:26 am
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 1079
Views: 142002

Re: Making a Start - The Peak District Midland / Monsal Dale pre 1903

The 5m OS map is a digitised download in DWG format and matches exactly the area I am modelling - but £76 + VAT is I'm afraid having a laugh as far as I am concerned :D Hi Tim, Contours at 5m spacing (16ft-5in) are available FREE on the modern OS Maps so-called "Standard" base map: http:/...
by Martin Wynne
Thu Sep 19, 2019 11:51 am
Forum: Product Information
Topic: Wizard Models
Replies: 60
Views: 4342

Re: Wizard Models

Taking samples was tried by C&L a few years ago and was a disaster. Anyway there are a lot of unseen costs in taking a sales stand to a show. First the stand fees, except for the larger shows (Warley BRM etc) they are not always that large a part of the costs. We have given up some shows where ...
by Martin Wynne
Mon Sep 09, 2019 12:08 am
Forum: Electrics
Topic: Can I drive a Seep motor from a lever frame?
Replies: 8
Views: 1275

Re: Can I drive a Seep motor from a lever frame?

It should not be too difficult to improvise a passing contact, which would be briefly connected by the sweep of a lever in a mechanical lever frame, so as to operated the SEEP (or similar) solenoid as the lever is reversed, and (in the opposite direction) when the lever is restored in the frame. Th...
by Martin Wynne
Sun Sep 08, 2019 9:19 am
Forum: Electrics
Topic: Can I drive a Seep motor from a lever frame?
Replies: 8
Views: 1275

Re: Can I drive a Seep motor from a lever frame?

I'm very grateful for your replies, particularly Martin for your very detailed one. I must confess I'm really asking on behalf of someone else, and although this is all quite simple I'm sure I have not personally made a layout since a 00 one 20 years ago, where I had a single Capacitor Discharge Un...
by Martin Wynne
Sat Sep 07, 2019 8:44 pm
Forum: Electrics
Topic: Can I drive a Seep motor from a lever frame?
Replies: 8
Views: 1275

Re: Can I drive a Seep motor from a lever frame?

Is there a convenient but equally reliable way of actuating such a motor from a lever frame? Hi Julian, Well obviously the lever needs some form of electrical switch attached. An SPDT microswitch perhaps, or a home-made on-off contact controlling an SPDT relay. Given that much, this design is a sim...
by Martin Wynne
Thu Aug 22, 2019 7:23 am
Forum: Product Information
Topic: Wizard Models
Replies: 60
Views: 4342

Re: Wizard Models

Le Corbusier wrote:where does one find scalefour notes .... not sure I am aware of these?

Hi Tim,

see: viewtopic.php?f=3&t=6428

Notes here: https://www.scalefour.org/members/notes/start?do=index

cheers,

Martin.
by Martin Wynne
Tue Jul 30, 2019 1:54 am
Forum: Track and Turnouts
Topic: Catch Points
Replies: 49
Views: 3549

Re: Catch Points

Pannier Tank wrote:Have you seen this Templot Video?
http://templot.com/companion/catch_points.php

Just to say that the video has now been replaced with an animated infographic:

http://templot.com/companion/catch_points.php

cheers,

Martin.
by Martin Wynne
Sat Jul 20, 2019 7:55 am
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 249
Views: 23887

Re: Scaleforum 2019

Given that almost everyone says they forget names, what's the point of knowing someone's name? It's not a pre-condition to talking to them.

What should be on the badge is not the name, but the avatar picture from this forum. :)

cheers,

Martin.
by Martin Wynne
Mon Jun 10, 2019 10:55 am
Forum: Railmotors, Railcars and Multiple Units
Topic: Why the big windows?
Replies: 23
Views: 4073

Re: Why the big windows?

Is there anything in the story that the full depth windows caused photo-hypnotic effects in the driver from the sleepers flashing closely below? So far as I know, there were no visible measures taken at the time to reduce any such risk, so presumably not. A driver's attention whilst the train is mo...
by Martin Wynne
Sun Jun 09, 2019 8:46 pm
Forum: Railmotors, Railcars and Multiple Units
Topic: Why the big windows?
Replies: 23
Views: 4073

Re: Why the big windows?

Is there anything in the story that the full depth windows caused photo-hypnotic effects in the driver from the sleepers flashing closely below? But the driver needed to see a little old lady waving her handkerchief: https://www.independent.co.uk/travel/uk/stop-the-train-i-want-to-get-off-the-magic-...
by Martin Wynne
Sat Jun 08, 2019 7:52 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails

Hi Julian,

Templot will print the template with joggles if you tick the box on the switch settings dialog:

joggles1.png
joggles1.png (56.93 KiB) Viewed 1951 times


joggles2.png
joggles2.png (53.95 KiB) Viewed 1952 times

cheers,

Martin.
by Martin Wynne
Wed Jun 05, 2019 1:32 pm
Forum: Layouts and Operations
Topic: Onward from Ambergate
Replies: 99
Views: 30372

Re: Onward from Ambergate

TonyMont wrote:I suppose I could lift a template off the Templot club site. I will have a go.

Hi Tony,

There is a downloadable Templot file for a scissors crossover at:

http://85a.co.uk/forum/view_topic.php?i ... forum_id=1

(It's EM and curved, but will serve the purpose.)

cheers,

Martin.
by Martin Wynne
Thu May 30, 2019 10:50 am
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails

Martin your sketch is showing an undercut switch with the top of the tip at the gauging line 18/32" below rail top level with an effective width of zero. Hi Julian, My sketch was intended to show that IF the tip is reduced to zero width at the gauging depth, then the gauge is unaffected and no...
by Martin Wynne
Wed May 29, 2019 7:29 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails/undercut blade considerations

Was Martin talking about Straightcut switches? I thought he was trying to dissuade me from them and joggles. ... Hi Julian, I've lost track of what you were asking me. http://85a.co.uk/forum/images/emoticons/confused.gif The 9/16" gauging line below the rail top applies to all track, not only ...
by Martin Wynne
Mon May 27, 2019 4:37 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails

That looks similar/identical? to the diagram further down on your link earlier Martin from a contributor Richard R. Hi Julian, They are actually from David Rayner: http://85a.co.uk/forum/view_topic.php?id=2802&forum_id=6#p19573 David runs "Off The Rails" for 3-D printed chairs, etc: h...
by Martin Wynne
Mon May 27, 2019 10:39 am
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails

Dave (Bradwell) there are two gradients on the blade tip of your elevation drawing. How far below rail level is the tip of the blade on your drawing, how far is it till it is at full height and how far along does the first gradient end? Hi Julian, Here are some better quality scans. Bear in mind th...
by Martin Wynne
Fri May 24, 2019 12:03 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails/undercut blade considerations

Just to make the point that if we have gauge narrowing of say 0.1mm at the tip (because the thickness of a B switch blade can't be as little as 0.33 Hi Julian, There is no gauge narrowing (measured at the gauging line, 9/16" below the rail top). It is perfectly possible for the tip thickness t...
by Martin Wynne
Thu May 23, 2019 9:33 pm
Forum: Layouts and Operations
Topic: South Pelaw Junction
Replies: 85
Views: 16874

Re: South Pelaw Junction

John Donnelly wrote:Templot plan is down with a couple of trains for effect

+1
by Martin Wynne
Thu May 23, 2019 12:06 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails

The tip of the blade should be low enough that the wheel does not make contact with the top or inner face of it until it has passed some way beyond the toe of the switch blade. It then continues to rise to progressively take the full load of the wheel tread. Joggled switch blades take the full load...
by Martin Wynne
Wed May 22, 2019 1:03 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 65
Views: 7125

Re: Joggled Stockrails

Obviously in the model, to function as intended the height of the blade will need to be controlled, while the real thing is heavy enough not to stand proud of the slideplates. I soldered arms to the stretcher bars to go under the stockrails so the blades cannot rise Hi Julian, An essential function...

Go to advanced search