Search found 450 matches

by Tony Wilkins
Tue Jan 23, 2018 11:41 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 514
Views: 107422

Re: Brimsdown-The last grand project.

Spurred on by some of the other recent postings, I thought I would share some of my experiences and progress with my magnum opus Brimsdown. Enough teasing Tony! Show us the track plan! Having seen this track in the flesh, I can confirm that it is even better than it looks in the photos. Best wishes...
by Tony Wilkins
Tue Jan 23, 2018 10:43 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

All these musings and test constructions have been helpful in deciding me the way to go with the layout. I have a little less room than Tony, 20ft x 21ft (imperial here!) but still a lot of track to build. Not sure if I am going to post much, simply because there is much to do. We shall see. Thanks...
by Tony Wilkins
Tue Jan 23, 2018 8:09 am
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 514
Views: 107422

Brimsdown-The last grand project.

Spurred on by some of the other recent postings, I thought I would share some of my experiences and progress with my magnum opus Brimsdown. This has been mentioned in passing in a few other threads such as the NAG area groups reports. I thought it was high time I collected all the pictures together ...
by Tony Wilkins
Mon Jan 22, 2018 10:31 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

Hi Philip and Tim. I don't want to take over this thread so will be starting one of my own soon. Green Street has been going for 30 plus years and is still not finished. This was intended as a stop gap until I acquired the space to build what I really wanted which is Brimsdown. This is going to be B...
by Tony Wilkins
Mon Jan 22, 2018 4:45 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

I am currently 14 months into the construction of my last grand project, which I will be starting a couple of threads on soon. I think you mean "latest" Tony... :thumb Best wishes, No, I do mean last because I think this one is probably going to occupy the rest of my life. Regards Tony.
by Tony Wilkins
Sun Jan 21, 2018 9:25 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

Hello Tony, Is that tandem you mention point part of the work you undertook on Carlise and District? I have just been given some Railway Modellers from last year and, reading through them I came across the layout and admired your input on this epic construction project - 270 pieces of pointwork? Wo...
by Tony Wilkins
Sun Jan 21, 2018 5:00 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

Hi Tony, It looks like that template on which your excellent point work stands was created with Templot, so what did the program say when you added the 'safety point' partial template?! My understanding of the terms (prior to reading all the above posts) was: catch points caught and derailed runawa...
by Tony Wilkins
Sat Jan 20, 2018 11:45 pm
Forum: Track and Turnouts
Topic: 3D Printed Turnouts - Promising Progress
Replies: 25
Views: 8286

Re: 3D Printed Turnouts - Promising Progress

Hi Tim. Noel has already beaten me to it in mentioning some of what I was thinking following this thread. I am ambivalent about this new technology, which always brings mixed blessings. Yes skills change over time as technology develops. Personally I still prefer ply and rivet track construction des...
by Tony Wilkins
Thu Jan 18, 2018 12:03 am
Forum: Layouts and Operations
Topic: Bodmin General (1955)
Replies: 57
Views: 18297

Re: Bodmin General (1955)

Hi Keith. I'm glad you have managed to obtain a copy of the Bodmin 40' plan. We did indeed obtain a copy from the Plymouth records office, but where the NLG's copy ultimately wound up I do not know. Things can turn up in the most unexpected places. I found an official photo of my chosen station buil...
by Tony Wilkins
Mon Jan 15, 2018 11:13 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

Hi Howard.
The CLAG site pictures did cross my mind and there are lots of pictures of other trackwork on Green Street there too. They are of course somewhat old now. The CLAG site is well worth a look as there is a wealth of information on there covering many topics.
Thanks.
Tony.
by Tony Wilkins
Mon Jan 15, 2018 5:49 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

RobM wrote:
Le Corbusier wrote:Wow Tony .... that some piece of point work :thumb


Tim, you need to see the 5 way turnout Tony built for Green Street.....an even bigger wow!
Rob


Cheers Rob,
I suppose I will have to post a picture of that now.
Regards
Tony.
by Tony Wilkins
Mon Jan 15, 2018 4:43 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

One of the interesting features on the North British was the use of multiple versions of trap points with single blades at the end of yards where they led out on to the main line. Pairs were quite common - worked in conjunction with the main line point on a single lever. One set in Largo led direct...
by Tony Wilkins
Mon Jan 15, 2018 4:34 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

So now we have the definitive answer. It depends on who you ask :!:
Regards
Tony.
by Tony Wilkins
Sun Jan 07, 2018 9:07 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

A micrometer will generally be more accurate than a vernier calliper, provided that it is used with care and both require the correct degree of "feel" as is the case with using a back to back gauge. Such things only come from experience so patience is needed. A good source of quality prec...
by Tony Wilkins
Sun Jan 07, 2018 6:42 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

Hi Colin. Count the slide chairs in the above picture, there are only 9, which shows that none of us is infallible. The base plates are C&L ST with modified BH Chairs and Slide chairs as that was all that was available at the time. 109lb and 110lb FB switches use 10 Slide base plates for B, C an...
by Tony Wilkins
Sun Jan 07, 2018 2:11 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 148081

Re: Track Construction for a Test Track

Thanks for your response Howard. The difference between the two types of switch are clear to see. Like you, I would not want to have many of them to install! Further to the saga of the flat bottom switches, I have been testing out a switch assembly, checking the gap between the stock rail and switc...
by Tony Wilkins
Wed Jan 03, 2018 4:18 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

Be very careful reading Ted's post as he mixes metric and imperial measurements. When I and CLAG made our own B2B roller type gauges, we only possessed imperial micrometers, which measured to one thousandth of an inch 0.001". I calculated that the scale B2B dimension was near enough 0.703"...
by Tony Wilkins
Sun Dec 24, 2017 1:25 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

Were the exact scale dimensions given in the original Protofour table the same as those now given in the Digest Tony? I suggested earlier that BB minimum could be as low as 17.75 yet give working results. I wonder if you would concur? - Given the official P4 flange envelope of 0.35-40 the max would...
by Tony Wilkins
Sat Dec 23, 2017 8:48 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

I got the impression that because different people have different strengths and weaknesses (so different issues arise) there were just a plethora of options to try in order to determine what works for you? Here I think, we have the nub of the issue. Peoples abilities vary considerably. Give half a ...
by Tony Wilkins
Sat Dec 23, 2017 4:14 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

Like most of these kinds of discussion, it seems to me it is unlikely to get anywhere, other than round in circles. Those that shout loudest or have the strongest opinions are not necessarily those best qualified to make a positive contribution. It would be a big help if the Committee could work ou...
by Tony Wilkins
Sat Dec 23, 2017 1:47 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

Did all these steam and diesel locos all have the same back to back measurement for their varying wheel sizes? I would be very surprised if they weren't. However, there was article published in Modern Railways December 1965 about experiments BR were conducting with Heumann tyre profile wheels. It i...
by Tony Wilkins
Sat Dec 23, 2017 1:29 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

Tony Very interesting re Deltics. Surprising design...? -to have same bogie and motors as 37. Hi Julian. Yes, it does seem a bit strange, but the bogies of the 37s and Deltics were interchangable. The only difference that I am aware of is that the traction motor blowers were uprated on the Deltic t...
by Tony Wilkins
Fri Dec 22, 2017 12:09 pm
Forum: Trains: Model and Prototype
Topic: What back to back setting do you use?
Replies: 195
Views: 53938

Re: What back to back setting do you use?

[quote="Julian Roberts" One memory I have is of being on a dmu to Hitchin in 1976. At Stevenage a Deltic hauled passenger train was given the right away exactly the same moment as mine. We pulled away much more quickly through the four gears and it was about a mile out and well into 4th ge...
by Tony Wilkins
Wed Dec 20, 2017 11:59 am
Forum: Guest Book
Topic: Engineering, Injuneering and Knitting
Replies: 49
Views: 11230

Re: Engineering, Injuneering and Knitting

Hi Tim. I once tried fixing down some lengths of track to a wood base (for a test track) using double sided foam tape (about 2mm thick). It worked well except that you only get one shot at it as the grab is very fierce. I got one piece of track out of line and had to remove it, which destroyed the t...
by Tony Wilkins
Tue Dec 19, 2017 9:56 pm
Forum: Guest Book
Topic: Engineering, Injuneering and Knitting
Replies: 49
Views: 11230

Re: Engineering, Injuneering and Knitting

Didn't all locos have a specified minimum radius? They certainly did and not just for horizontal curves either. I do not have any figures available for steam locos, but typical examples from some diesel loco diagram books I have state the following. Class 47 Horizontal without gauge widening 4 Chai...

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