Search found 446 matches

by Alan Turner
Tue May 21, 2019 2:45 pm
Forum: Layouts and Operations
Topic: South Pelaw Junction
Replies: 60
Views: 11836

Re: South Pelaw Junction

Where do the folding baseboard legs come from? B&Q I think, I bought them a few years ago. Screwfix, toolstation etc. Usualy about £25 https://www.toolstation.com/draper-adjustable-metal-trestle/p83483?store=T1&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfee...
by Alan Turner
Mon May 20, 2019 10:39 am
Forum: Exhibitions
Topic: Show attacked
Replies: 29
Views: 1117

Re: Show attacked

It is almost 2 years since the vandalism on the NYMR caused great anger among many rail enthusiasts as well as a large number of the general population who were keen to help. In the current case, donations seem to be coming from around the globe, some of them substantial, some not so large but an a...
by Alan Turner
Mon Apr 15, 2019 2:23 pm
Forum: Tools and Techniques
Topic: NiSI Rod
Replies: 5
Views: 487

Re: NiSI Rod

Would you be OK with SS?

if so consider Hypodermic needles. See RS 505-7786 https://uk.rs-online.com/web/p/products/5057786/

regards

Alan
by Alan Turner
Mon Apr 08, 2019 8:31 pm
Forum: Tools and Techniques
Topic: Best tool for the job
Replies: 10
Views: 684

Re: Best tool for the job

I would use a 5 sided cutting broach to take it from 2mm to reaming dia and then a 3mm reamer.

regards

Alan
by Alan Turner
Mon Apr 08, 2019 8:29 pm
Forum: Coaches and NPCS
Topic: Papier mache coaches?
Replies: 3
Views: 595

Re: Papier mache coaches?

And then there is the Trabant!

regards

Alan
by Alan Turner
Mon Mar 25, 2019 7:57 am
Forum: Signals and Control Systems
Topic: Arrangement of levers in a signal box (calling at the Quintinshill disaster, use of collars and setting back)
Replies: 52
Views: 2800

Re: Arrangement of levers in a signal box

jim s-w wrote:Thanks All

What are the collars the bobby uses a couple of times?



Cheers

Jim


To stop him doing something stupid and make him think "why am I pulling this lever".

regards

Alan
by Alan Turner
Sat Mar 23, 2019 3:57 pm
Forum: Lathe Work
Topic: Inside threaded rod
Replies: 6
Views: 987

Re: Inside threaded rod

RS Components do an M2 bush - unfortunately it is steel. RS number 505-268

https://uk.rs-online.com/web/

regards

Alan
by Alan Turner
Fri Feb 01, 2019 11:15 pm
Forum: Where to Find?
Topic: Tufnol sheet
Replies: 4
Views: 642

Re: Tufnol sheet

Eillen's Emporium

regards

Alan
by Alan Turner
Wed Nov 14, 2018 8:24 am
Forum: Other Buildings and Scenery
Topic: Bridge arch question
Replies: 12
Views: 1510

Re: Bridge arch question

Actually it is NOT an ellipse it is either a 3 point arch or a 5 point arch.

Any decent practical geometry book will tell you haw to set it out.

The reason it's not an ellipse is because it would be a nightmare for the carpenters to make the false work.

regards

Alan
by Alan Turner
Tue Oct 16, 2018 2:42 pm
Forum: Signals and Control Systems
Topic: Mk2 Lever frame musings
Replies: 54
Views: 6941

Re: Mk2 Lever frame musings

Dave, I shall follow your method, but use an airbrush rather than spray cans to apply the paint, which I was thinking would be better gloss rather than matt. On the subject of paint: are there standard colours for levers i.e. signal red and signal yellow. And what about the shade of blue used for l...
by Alan Turner
Thu Oct 04, 2018 9:38 am
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 98033

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

I have been enjoying reading John Hayes' The 4mm Coal Wagon. In it he suggests using silver steel tube and bar filed and shaped to form punches to allow the punching out of various shapes from styrene sheets. Does anyone have a handy supplier of such material? :thumb Eillen's Emporium? regards Alan
by Alan Turner
Fri Sep 14, 2018 7:09 am
Forum: Electrics
Topic: which controller for a test track?
Replies: 16
Views: 2166

Re: which controller for a test track?

I use a smooth DC controller based on a LM317 chip http://www.ti.com/product/LM317?utm_source=google&utm_medium=cpc&utm_term=lm317&utm_campaign=app_ldo_ww_p_e_ldo&utm_content=e910e69e-fea0-49b2-8b1e-6312360a3ce5&gclid=EAIaIQobChMI0Nqzqfi33QIVzpPtCh2CPgXGEAAYASAAEgLv-fD_BwE# circ...
by Alan Turner
Sat Sep 08, 2018 9:17 pm
Forum: Chassis and Suspensions
Topic: GWR inside frame colour
Replies: 15
Views: 1829

Re: GWR inside frame colour

Venetian Red is an Iron Oxide pigmented paint. As is Indian Red - called Indian Red as it used a particular Haematite ore imported from India which gave it a purplish hue.

regards

Alan
by Alan Turner
Wed Aug 29, 2018 8:37 am
Forum: Railway Buildings
Topic: Signal box signs
Replies: 5
Views: 2254

Re: Signal box signs

Hi everyone, I have these scraps of etches left over from a Mitchell CM40 GWR signal box kit and I've been using some bits to detail a Severn Models signal box. On one of the frets are two signs, an S in a circle and a T in a square (see image below). I've Googled but to no avail. Can anyone tell m...
by Alan Turner
Tue Aug 28, 2018 9:42 pm
Forum: Painting and Weathering
Topic: A Frosty Finish
Replies: 13
Views: 1799

Re: A Frosty Finish

I've had this happen more times than I care to think about.

Its very prevalent with Humbrol Matt varnish.

I now use Precision and so far I get better results.

regards

Alan
by Alan Turner
Tue Aug 07, 2018 8:00 pm
Forum: Vehicle dynamics and trackholding
Topic: Do we need 1:20 Rail Inclination
Replies: 38
Views: 5902

Re: Do we need 1:20 Rail Inclination

For a time BR laid crossings with vertical rail.

Also Swiss rail doesn't have any inclination and North American rail has a 1:40 inclination.

regards

Alan
by Alan Turner
Mon Jul 30, 2018 12:14 pm
Forum: Painting and Weathering
Topic: Airbrushing varnish: advice sought
Replies: 62
Views: 20009

Re: Airbrushing varnish: advice sought

I use Precision varnish. For satin I use two parts gloss and one part matt. You must use the varnish thinners however. To use ordinary thinners runs the risk of getting a white bloom.

regards

Alan
by Alan Turner
Wed Jul 25, 2018 9:05 am
Forum: Signals and Control Systems
Topic: Mk2 Lever Frame , Dimensions
Replies: 32
Views: 3975

Re: Mk2 Lever Frame , Dimensions

Re, locking the lever catches, what about just using a scale version of those metal 'egg cup' thingies that can be slipped over the lever handles, thus preventing the catch handle from being moved? It is not very hi-tech perhaps, but they use this method on the local preserved line, the Gwili Railw...
by Alan Turner
Sat Jul 21, 2018 11:22 am
Forum: Chassis and Suspensions
Topic: Converting Tender Chassis
Replies: 7
Views: 1381

Re: Converting Tender Chassis

Lanarkshire models do an 8 wheel tender CSB chassis - however it's for a WD..

http://www.lanarkshiremodels.com/lanark ... te_169.htm

regards

Alan
by Alan Turner
Mon Jul 16, 2018 7:14 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 66968

Re: Construction of a Test Track

Hi Colin, I did say my maths on expansion was a little rusty, it's over 40 years since I last needed to work out the expansion of anything. I used 5C as the temperature at which the rail was laid to give the maximum expansion range, whereas I suspect you probably laid the track 10 to 15 degrees war...
by Alan Turner
Mon Jul 16, 2018 3:34 pm
Forum: Guy Rixon
Topic: Drive components for electric locos and EMUs
Replies: 11
Views: 3142

Re: Drive components for electric locos and EMUs

A PS - High Level really need to sort out their web site. Having an IP code as their address means it never comes up on a Google search. They must be losing a lot of business. regards Alan Just searched for 'highlevelkits on Google and it came up OK, http://www.highlevelkits.co.uk Regards Must be m...
by Alan Turner
Mon Jul 16, 2018 7:50 am
Forum: Guy Rixon
Topic: Drive components for electric locos and EMUs
Replies: 11
Views: 3142

Re: Drive components for electric locos and EMUs

Also have you considered the High Level option: http://173.254.28.51/~highlev3/chris/Pages/longriderpage.html or the Bull Ant: http://www.hollywoodfoundry.com/bullant%20intro.htm PS - High Level really need to sort out their web site. Having an IP code as their address means it never comes up on a G...
by Alan Turner
Mon Jul 16, 2018 7:35 am
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 66968

Re: Construction of a Test Track

Hello Alan, Yes, I was aware of the temperature range of -17C to 53C is used in the calculation of expansion of prototype UK steel rail, but forgot to include the information in my reply. Unless I have totally misunderstood the theory, it appears to me that a steel P4 rail 1 metre long would expand...
by Alan Turner
Sun Jul 15, 2018 8:24 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 66968

Re: Construction of a Test Track

Hello Phil, prototype data would suggest that a steel rail 18.5 m long requires a maximum expansion gap of 14.3 mm: https://pwayblog.com/2016/03/04/maximum-joint-expansion-gap/ It appears that both heat and expansion are not scaleable, so for steel rail the expansion range is 0.77 mm (rounded to tw...
by Alan Turner
Sun Jul 15, 2018 8:10 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 66968

Re: Construction of a Test Track

stephenfreeman wrote:So scale rail section results in scale expansion? Perhaps another reason for following prototype practice more closely?

But can you scale heat??? ;)


The scale section is irrelevant. A solid bar of steel the same length would expand the same.

Regards

Alan

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