Search found 703 matches
- Mon May 27, 2019 4:37 pm
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
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...
- Mon May 27, 2019 10:39 am
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
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...
- Fri May 24, 2019 12:03 pm
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
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...
- Thu May 23, 2019 9:33 pm
- Forum: Layouts and Operations
- Topic: South Pelaw Junction
- Replies: 130
- Views: 35373
Re: South Pelaw Junction
John Donnelly wrote:Templot plan is down with a couple of trains for effect
+1
- Thu May 23, 2019 12:06 pm
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
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...
- Wed May 22, 2019 1:03 pm
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
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...
- Wed May 22, 2019 2:19 am
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
Re: Joggled Stockrails
Hi Dave, Well I have this drawing of how to represent an undercut switch tip in simplified model form (assuming vertical rail): http://85a.co.uk/forum/gallery/2/original/2_212140_560000000.png Julian you asked if I have any suggestions for joggles, and the answer is yes -- don't use them . http://85...
- Sun May 19, 2019 1:58 pm
- Forum: Track and Turnouts
- Topic: Joggled Stockrails
- Replies: 65
- Views: 14164
Re: Joggled Stockrails
If using a ruler the length between A and C will not abut the ruler. Hi Julian, Your drawing is correct. It is actually very tricky to get right in a model, especially the very slight bend needed at C. Phil wrote: If you're building GW turnouts, the timbering is square to the centreline, what Marti...
- Wed May 08, 2019 4:10 pm
- Forum: Track and Turnouts
- Topic: Turnout construction - Question here please.
- Replies: 220
- Views: 44594
Re: Turnout construction - Question here please.
Hi Julian, In Templot you can: switch joggles on or off for any template; create a custom switch having any joggle dimensions of your choosing, or use one of the pre-set GWR switches based on prototype dimensions; select "overscale joggle depth" in the generator, which over-rides any other...
- Mon May 06, 2019 12:10 pm
- Forum: Track and Turnouts
- Topic: Turnout construction - Question here please.
- Replies: 220
- Views: 44594
Re: Turnout construction - Question here please.
p.s. to clarify that diagram -- or make it more confusing -- I have added some rail outlines:
This shows how the blade tip fits into the joggle to align the running edge with the unjoggled part of the rail.
Martin.
This shows how the blade tip fits into the joggle to align the running edge with the unjoggled part of the rail.
Martin.
- Mon May 06, 2019 8:30 am
- Forum: Track and Turnouts
- Topic: Turnout construction - Question here please.
- Replies: 220
- Views: 44594
Re: Turnout construction - Question here please.
I have to make a pair of joggled B switches with full height blades as in the straightcut blades pictures earlier on this thread. I can file the blades to a minimum sensible thickness of about 0.2mm. 3/8" blades scale out at 0.125mm. Hi Julian, You should be able to file them thinner than that...
- Wed Apr 24, 2019 4:25 pm
- Forum: Product Information
- Topic: Exactoscale Products
- Replies: 78
- Views: 30602
Re: Exactoscale Products
The point kits no longer seem to be listed on the Exactoscale site which is disappointing as I was hoping the full range would become available again. I agree that the pricing under the last vendor was off-putting to say the least, but I do hope they re-appear (at a reasonable price for everyone). ...
- Sun Apr 21, 2019 9:05 pm
- Forum: Track and Turnouts
- Topic: rail/wheel profile - prototype has problems too
- Replies: 22
- Views: 4942
Re: rail/wheel profile - prototype has problems too
Hi Julian, I'm wondering if pin-point axles play any part in this. Is there any empirical evidence on the relative derailability of wagons with pin-point versus parallel needle bearings? Note that the prototype doesn't use pin-point bearings. Nor traditional tinplate train sets. If there is any end-...
- Fri Apr 19, 2019 8:51 am
- Forum: Track and Turnouts
- Topic: Turnout construction - Question here please.
- Replies: 220
- Views: 44594
Re: Turnout construction - Question here please.
After laying out the sleepers on the Templot which had double sided tape on it I marked the points where the rivet needed to go. The pen I used, the ink bleed into the wood rather than leaving a a dot, so next time get a different pen. Went to use the hole punch and the pin didn't penetrate the sle...
- Thu Apr 18, 2019 11:39 am
- Forum: Track and Turnouts
- Topic: rail/wheel profile - prototype has problems too
- Replies: 22
- Views: 4942
rail/wheel profile - prototype has problems too
The RAIB has published an accident report today which contains interesting information about the P1 wheel profile:
https://www.gov.uk/government/publicati ... ember-2018
Martin.
https://www.gov.uk/government/publicati ... ember-2018
Martin.
- Wed Apr 17, 2019 10:10 pm
- Forum: Track and Turnouts
- Topic: Crossing Vee Jig
- Replies: 26
- Views: 7319
Re: Crossing Vee Jig
Martin's magic engine tells me that I have Vees to build soon in BH rail to these specs 1:x where x = 4.53, 5.08, 5.5, 5.58, 5.6, 5.7, 6.16, 6.25, 6.38 as well as the common values, 5, 5.5, 6, 6.5, 7 etc I have recently acquired a copy of "GWR Switch and Crossing Practice", which I have r...
- Mon Mar 18, 2019 1:17 pm
- Forum: Operating in Practice
- Topic: Operational entertainment...
- Replies: 34
- Views: 12527
Re: Operational entertainment...
Tim V wrote:I think you have to consider if you are representing what happened on one day, on say 12 September 1932
That would make an interesting model. It poured with rain all day.

Martin.
- Wed Feb 27, 2019 5:31 am
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
seanmcs wrote:I'd like to explore the GWR turnouts on Templot. Possibly would save me making up my own templates, as the printed ones are unsuitable. Can I look at it with a Mac?
Hi Sean,
Yes, there are 3 ways to run Templot on a Mac. Full details at:
http://templot.com/companion/for_you.php
cheers,
Martin.
- Wed Feb 27, 2019 5:09 am
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
"It is not widely appreciated that semi-curved switches came into use on the Great Western only in the 1930s and were used only for new construction. The older curved loose heeled switches remained in use into BR times." Hi Sean, The GWR did not use semi-curved switches. The flexible swit...
- Sun Feb 17, 2019 10:54 pm
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
p.s. Dave, If it helps to understand what's happening in a joggle, I have added a red line to the diagram: http://85a.co.uk/forum/gallery/2/2_171738_320000000.png The red line shows the position of the stock rail for a plain set with no joggle. To make the joggle, imagine the stock rail being held a...
- Sun Feb 17, 2019 10:28 pm
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
Martin , is the set the same where the stock rails have joggles ? Hi Dave, Yes, there is still a change in angle in the stock rail with a joggle. It's a slightly smaller angle than for a plain set because of the switch tip thickness. The object in all cases is to end up with the stock rail in the s...
- Sun Feb 17, 2019 10:47 am
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
The switch illustrated by Dave K causes me some concern, given the proximity of the tongue rail to the stock rail in the area I've indicated by a yellow ellipse Hi John, Dave, The photo illustrates well what happens when there is insufficient (or no) "set" in the diverging stock rail. Thi...
- Fri Feb 15, 2019 5:55 pm
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
junctionmad wrote:can Templot do this Martin ?
Hi Dave,
Sure. Click the set custom switch... button on the switch dialog.
More info on all this at:
http://85a.co.uk/forum/view_topic.php?i ... d=6#p19351
cheers,
Martin.
- Fri Feb 15, 2019 5:03 pm
- Forum: Track and Turnouts
- Topic: Modelling loose heeled switches in 4mm
- Replies: 34
- Views: 8208
Re: Modelling loose heeled switches in 4mm
Hi Dave, Loose-heel switches can only be modelled exactly to scale if you are using dead-scale flangeways. Even the overscale flangeways in P4 are border-line. In 00-SF and EM you must extend the length of the switch rails to the position where the heel offset provides at least 1mm flangeway clearan...
- Fri Feb 01, 2019 8:21 pm
- Forum: Where to Find?
- Topic: Ramakin size thing, with spout?
- Replies: 3
- Views: 1199
Re: Ramakin size thing, with spout?
You want a crystallizing dish:
https://www.ebay.co.uk/itm/60mm-Reusabl ... 3995952512
https://www.ebay.co.uk/p/SEOH-Crystalli ... 1252256268
Martin.
https://www.ebay.co.uk/itm/60mm-Reusabl ... 3995952512
https://www.ebay.co.uk/p/SEOH-Crystalli ... 1252256268
Martin.