Search found 573 matches

by Julian Roberts
Mon Oct 22, 2018 3:48 pm
Forum: Exhibitions
Topic: Scalefour North 2018 Retrospective
Replies: 2
Views: 389

Re: Scalefour North 2018 Retrospective

John, just like to say thank you from me and all those people who couldn't make it to see such fine layouts. It is one way I can see what is going on. Hear hear Doug. ..from me who WAS there! - but too busy operating to see all of this fine modelling. Hope not to sound obsequious but what an achiev...
by Julian Roberts
Fri Aug 17, 2018 8:07 am
Forum: New Products
Topic: Accurascale 24.5t HOP24/HUO hoppers
Replies: 21
Views: 3205

Re: Accurascale 24.5t HOP24/HUO hoppers

Thanks Rob! Apologies for wasting space on the thread. I must have had a "doh" moment in overlooking Will's post.
by Julian Roberts
Thu Aug 16, 2018 7:28 pm
Forum: New Products
Topic: Accurascale 24.5t HOP24/HUO hoppers
Replies: 21
Views: 3205

Re: Accurascale 24.5t HOP24/HUO hoppers

Use the Dave Bradwell springing units. See my posts in "on my workbench". Hi Hardwicke I've skimmed your workbench thread (without an e at the end of your name! - I assume I've got the right one?!) and can't find what you're referring to. Any chance of a link? Cheers Julian Also, thanks f...
by Julian Roberts
Tue Aug 14, 2018 8:51 pm
Forum: Steam Locomotives
Topic: Stroudley Class E1 0-6-0 T
Replies: 11
Views: 963

Re: Stroudley Class E1 0-6-0 T

Thanks Charlie. In idle curiosity I've just looked in my Sharman book at Drummond and the CR people following, Lambie and McIntosh. Am I right that Stroudley influenced these people particularly - did Stroudley have a Scottish connection perhaps? The 18" outside stroke persisted. The Drummond M...
by Julian Roberts
Mon Aug 13, 2018 8:45 am
Forum: Steam Locomotives
Topic: Stroudley Class E1 0-6-0 T
Replies: 11
Views: 963

Re: Stroudley Class E1 0-6-0 T

Both pieces of information are correct as Stroudley favoured shorter cranks on the outside of the driving wheels to move the coupling rods. From HJ Campbell Cornwell's book "William Stroudley Craftsman of Steam" the internal crank on the axle matched the cylinder stroke of 24" with a...
by Julian Roberts
Mon Aug 13, 2018 8:35 am
Forum: New Products
Topic: Accurascale 24.5t HOP24/HUO hoppers
Replies: 21
Views: 3205

Re: Accurascale 24.5t HOP24/HUO hoppers

Lovely....I wonder how easy a conversion to compensation or springing of some sort will be? From the photo of the underneath there would seem to be daylight inboard of the wheels looking from slightly above, which could make my favoured compensation a little tricky to totally conceal, on the compens...
by Julian Roberts
Sun Jul 29, 2018 4:04 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 610
Views: 43569

Re: Construction of a Test Track

This is re the hot weather discussions. I don't know if it is helpful and how much of the issues you discussed were to do with curving track... I’m not sure quite what all this is telling me, but probably that I should not worry too much about rail variations and just to use up what I have It seems ...
by Julian Roberts
Sat Jun 30, 2018 6:53 am
Forum: West of Scotland
Topic: West Scotland 4mm Group layout Calderside
Replies: 14
Views: 1613

Re: West Scotland 4mm Group layout Calderside

Wow! Is that forty feet of layout excluding the fiddle yard? . Hopefully I am answering this question John below Screenshot_2018-06-30-07-48-28.png This plan is being updated to reflect the slightly simpler track arrangement actually built. The engine change referred to is no longer relevant - now ...
by Julian Roberts
Fri Jun 29, 2018 9:39 am
Forum: West of Scotland
Topic: West Scotland 4mm Group layout Calderside
Replies: 14
Views: 1613

Re: West Scotland 4mm Group layout Calderside

Kind comments very much appreciated by us all. Can't remember anything uncomplimentary David! Great to meet you. So much nicer way to meet than online! - and it was great to see friends old and new. Yes Colin that is Allan! John the original points are H&M or Maygib. Where they are not they are ...
by Julian Roberts
Thu Jun 28, 2018 6:01 pm
Forum: West of Scotland
Topic: West Scotland 4mm Group layout Calderside
Replies: 14
Views: 1613

Re: West Scotland 4mm Group layout Calderside

Our senior scenic guru, teacher and inspirer of all things modelling (and not modelling!) on the day of the show set up, palette in hand. 20180622_151238-1.jpg Many thanks to Gavin for suggesting how to get this picture oriented correctly! Perth2018 - DAS - IMG_2822-1.jpg DSCF5059.jpg 20180623_17295...
by Julian Roberts
Thu Jun 28, 2018 5:48 pm
Forum: West of Scotland
Topic: West Scotland 4mm Group layout Calderside
Replies: 14
Views: 1613

Re: West Scotland 4mm Group layout Calderside

20180623_172934.jpg
Station scene


DSCF5065.jpg
Train terminated at Calderside.


DSCF5058-1.jpg
Coal train with guards van at front drawing out of Exchange Sidings prior to running round and departing on main line


20180623_171508.jpg
Scene at Exchange Sidings


Perth2018 - DAS - IMG_2826-1.jpg
Colliery shunter (High Level Barclay Tank) awaits duty in headshunt


DSCF5060-1.jpg
Safely locked into the Exchange Sidings the local passenger train can pass.


Perth2018 - DAS - IMG_2821.JPG
Coal trains are propelled into the Exchange Sidings guards van first.


DSCF5054.jpg
Prolific gorse this year!


Perth2018 - DAS - IMG_2827-1.jpg
Chosen time period is a loose interpretation of BR. Early BR green diesels sometimes appear. This MetroVic moves superbly at shunting speed.


DSCF5053.jpg
Q1 in the grass awaits right away.


A plan of the layout will appear later.
by Julian Roberts
Thu Jun 28, 2018 5:06 pm
Forum: West of Scotland
Topic: West Scotland 4mm Group layout Calderside
Replies: 14
Views: 1613

West Scotland 4mm Group layout Calderside

Calderside is the West of Scotland 4mm Group's exhibition layout. Originally built by Alan Clark in the 1980s it passed to the Group when he left Scotland to live in France. After a new turntable fiddleyard was made by John Stocks exhibition appearances became more frequent. When John became the Gro...
by Julian Roberts
Thu May 17, 2018 9:41 pm
Forum: Tools and Techniques
Topic: How not to break a 16BA Tap?
Replies: 24
Views: 1578

Re: How not to break a 16BA Tap?

So many thanks to everyone for all these good ideas! When I get some modelling time I'll do one of these options and describe on my Crab thread...maybe I'll end up trying them all!

PS 'Fraid I have no RSU David..!
by Julian Roberts
Wed May 16, 2018 8:15 am
Forum: Tools and Techniques
Topic: How not to break a 16BA Tap?
Replies: 24
Views: 1578

Re: How not to break a 16BA Tap?

All, thank you for your further thoughts. I should have said I don't have a lathe. But those of you who have described how a lathe might be used will I'm sure be helping others who may refer to this. I realize from this that my best chance is to minimize the thickness of material I am trying to tap....
by Julian Roberts
Sun May 13, 2018 9:08 pm
Forum: Tools and Techniques
Topic: How not to break a 16BA Tap?
Replies: 24
Views: 1578

Re: How not to break a 16BA Tap?

Very many thanks all. Food for thought. I'm relieved to see I'm not the only one to find this challenging!

Yes certainly reviewing the need John! Whatever I come up with will be on my Crab build.

The tap is a taper, carbon steel, BTW
by Julian Roberts
Sun May 13, 2018 7:10 am
Forum: Tools and Techniques
Topic: How not to break a 16BA Tap?
Replies: 24
Views: 1578

How not to break a 16BA Tap?

I wonder if anyone has any thoughts? Bought one of these for £20. Broken within 15 minutes. I could see it was delicate so I oiled it and the brass tube I wanted to tap, was screwing it in by hand, unscrewing it every time it got sticky to clean off the swarf. I wonder if another time (if I buy anot...
by Julian Roberts
Tue May 08, 2018 1:45 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

A clarification on Point 7 in previous post regarding the expansion link. Here are two pictures that show the two etchings that together make up each link. Capture Expansion link original.JPG 20180508_104556-1 (Small).jpg It can be seen that the one with just one hole has that hole not quite in the ...
by Julian Roberts
Mon May 07, 2018 7:14 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

For anyone who like me finds Walschaerts gear a not undaunting prospect, here is a list of the problems I encountered: Capture Crab fouling points 2.JPG Taking the picture to which I've added red lines which indicate the problem area. In clockwise order from lower right: 1. The return crank – I put ...
by Julian Roberts
Sun May 06, 2018 5:15 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

Thanks again Philip. Yes if I can be there I'll search you out. Just to clarify, I did manage to get this tender derailment free even with the fixed coupling but at the cost of so much spring force that there was almost no weight transfer to the loco. End of that approach!... The Crab now can almost...
by Julian Roberts
Sun May 06, 2018 7:40 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

Hi Philip Thanks for all your reply! Well, as you see, I realize to my relief I don't need the weighted tender for this Crab. But my P4 loco that is in temporary abandonment, a 4-4-0 LMS Compound, I do, as that has all the weight over the front bogie and very little where the motor is, and relies on...
by Julian Roberts
Fri May 04, 2018 8:15 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

Now that the chassis assemblies were complete, first task was to load every little space with pieces of lead. Here are two parts of that process. 20180423_131212 (Small).jpg 20180423_131226 (Small).jpg Now to test the newly nearly completed chassis before adding the valve gear. Miraculously the sand...
by Julian Roberts
Tue Apr 24, 2018 8:35 am
Forum: John Donnelly
Topic: Motive power for South Pelaw Junction
Replies: 39
Views: 6304

Re: Motive power for South Pelaw Junction

One of the diesels (a Class 24 or similar) we have running on Calderside and Kettlewell is Penbits equipped and is the best runner, I think for the same reason, that there is weight on all the wheels, whatever the track might do. I seem to recall the leading wheel problem on 1CoCo1 diesels even in 0...
by Julian Roberts
Sun Apr 22, 2018 6:51 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

This is in addition to the post submitted a few minutes ago. On return from Scalefour North I find that the weight transfer to the loco is only around 40g. It is difficult to measure on kitchen scales as the slightest unsteadiness affects the reading dramatically. But it makes sense considering the ...
by Julian Roberts
Sun Apr 22, 2018 6:24 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 137
Views: 13341

Re: Crab Comet conversion

A professional sounding post would read thus: "The front and centre tender wheels that bear no load as per the Sharman arrangement were installed, with the brake gear. Springing them adequately necessitated some extra weight in the water space." 20180412_165314.jpg I'm not sure if the foll...
by Julian Roberts
Tue Apr 10, 2018 10:14 am
Forum: Steam Locomotives
Topic: Bogie and pony wheel swing calculator
Replies: 0
Views: 325

Bogie and pony wheel swing calculator

Here is a spreadsheet calculator for working these out. I don't know if something like this is already available here somewhere. If it is and it's better please say so someone and I'll erase this. As I know nothing about maths, computers, etc, I can't help if anyone has any questions. My son put it ...

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