Search found 623 matches

by billbedford
Fri Jan 11, 2013 9:55 am
Forum: Starting in P4
Topic: Fitting Wheels
Replies: 36
Views: 12666

Re: Fitting Wheels

When I go to put them on the new axle, I tend to push too hard on one side or other first. Then I push too hard to overcome the resistance of the fit, and end up with the wheel too far up the axle and have to move it back. The same occurs with the other wheel. Eventually I get the whole thing onto ...
by billbedford
Wed Jan 09, 2013 10:02 am
Forum: Trains: Model and Prototype
Topic: P4 scale limitations.
Replies: 13
Views: 5748

Re: P4 scale limitations.

The erstwhile Deputy Chairman's Cup competitions showed that the very best designed loco frames were able to give a drawbar pull to adhesion weight of around 25%. This can only be improved by non-finescale techniques such as traction tyres. Personally I find this whole debate fairly sterile. There a...
by billbedford
Tue Jan 08, 2013 9:46 am
Forum: Mark Tatlow
Topic: A Highland Miscellany
Replies: 300
Views: 94442

Re: A Highland Miscellany

A Pictorial Record of LNER Constituent Signalling by Sandy McClean show that version A was GNR and version C was NER. There is also a photo of an example of version E which is preserved in the NRM, but no provenance is given.
by billbedford
Mon Jan 07, 2013 8:56 am
Forum: Steam Locomotives
Topic: Intermediate Level CSBs (and other gizmos...)
Replies: 7
Views: 4632

Re: Intermediate Level CSBs (and other gizmos...)

Chris Mitton wrote:Thanks for the advice, gents....
Will - I hadn't thought of a crew, but now you mention it whitemetal is mostly lead (isn't it? I stand to be corrected) so that's a good idea.


Used to be, it now mostly lead free.
by billbedford
Sat Jan 05, 2013 10:30 am
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 21793

Re: profiling EM wheels to P4

Terry Bendall wrote:
Hardwick wrote:It was a 00 wheel I think but has worked out quite well.


It certainly looks OK from the picture but the proof of course will be when it is tried out in the track ;)

Terry Bendall



…and, of course, getting the whole set the same size.
by billbedford
Fri Jan 04, 2013 11:01 am
Forum: New Products
Topic: The Portescap RG4 is reborn!
Replies: 14
Views: 9911

Re: The Portescap RG4 is reborn!

but also this one, though not really for locos.
by billbedford
Wed Jan 02, 2013 1:26 pm
Forum: Central London (CLAG)
Topic: CLAG meetings
Replies: 2
Views: 3630

Re: CLAG meetings

Just a reminder that the next CLAG meeting will be on Friday 11 January at 8:00 pm

The usual place 745b High Road, Leytonstone, E11 4QS.

E-mail me if you want directions.
by billbedford
Sat Dec 29, 2012 12:21 pm
Forum: Chassis and Suspensions
Topic: Eileen's split axle test
Replies: 13
Views: 6687

Re: Eileen's split axle test

There is a step missing. The silver steel rods should be heated until they are bright red and dropped into a cup of cold water. This will harden them enough so that when the tube is sawn there is no possibility of cutting into the central rod. Also I would suggest that one gap would be preferable as...
by billbedford
Wed Dec 26, 2012 10:37 am
Forum: Wagons
Topic: Jidenco GWR ex RR 6 wheel CCT
Replies: 8
Views: 3579

Re: Jidenco GWR ex RR 6 wheel CCT

The easiest way of doing 6 wheeled underframes is here, providing, of course, that C&L have the Exoctoscale axles
by billbedford
Sun Dec 16, 2012 11:11 am
Forum: Tools and Techniques
Topic: How real do your photo's look?
Replies: 122
Views: 45795

Re: How real do your photo's look?

Photos of trackwork often show the same bodging and irregularity suggested for buildings. Maybe Templot needs a Jerry-built option? I'm not sure that this is true. There are photos, of pre- grouping track, where the sleepers are parallel but the ends of said sleepers are not square, or of even leng...
by billbedford
Thu Dec 13, 2012 9:32 am
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 21793

Re: profiling EM wheels to P4

My impression is that CLAG contains some very skilled precision engineers. Their view of such matters may perhaps be coloured by their general approach to model-making, with much greater emphasis on dimensional accuracy (particularly in the engineering) than the average model-maker. None of us are ...
by billbedford
Wed Dec 12, 2012 9:53 am
Forum: Coaches and NPCS
Topic: Barrow Road Breakdown Train - Identification of stock
Replies: 3
Views: 2842

Re: Barrow Road Breakdown Train - Identification of stock

The clerestory is/was MR Bain 54' corridor stock. Which one is anyone's guess. These sorts of conversions seem relatively common. The lefthand one is a staff van built by Derby on redundant underframes. See p 431 of Lacey and Dow for a similar one. The middle one is a six wheeled brake with centre l...
by billbedford
Tue Dec 11, 2012 9:57 am
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 21793

Re: profiling EM wheels to P4

All Sharman wheels (including the 'P4' ones) were 2.3 mm wide instead of a scale 1.8 mm. Clearly the width of Mike Sharman's wheels has not been a problem for people working in P4, or we would have heard about it - they were very widely used at one stage, and it is only their non-availability in mo...
by billbedford
Mon Dec 10, 2012 11:11 am
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 21793

Re: profiling EM wheels to P4

All Sharman wheels (including the 'P4' ones) were 2.3 mm wide instead of a scale 1.8 mm.
by billbedford
Sun Dec 09, 2012 10:38 am
Forum: Lathe Work
Topic: profiling EM wheels to P4
Replies: 59
Views: 21793

Re: profiling EM wheels to P4

I think I would use the Alan Gibson LowMac wheels and ignore the extra half millimetre on the diameter.
by billbedford
Tue Nov 20, 2012 9:41 am
Forum: Chassis and Suspensions
Topic: 0-4-0T csb
Replies: 18
Views: 5990

Re: 0-4-0T csb

Perhaps you should build one and show us………...
by billbedford
Fri Nov 16, 2012 10:37 am
Forum: Steam Locomotives
Topic: Are RTR models 'really' that good?
Replies: 53
Views: 18407

Re: Are RTR models 'really' that good?

John's specific point about the seating of domes and chimneys is quite valid; his examples were Bachmann and having looked through the pictures of all the engines I've converted over the years, it is true that the Hornby ones are much better in this regard. We now have technology (and the inclinati...
by billbedford
Wed Nov 14, 2012 9:11 am
Forum: Chassis and Suspensions
Topic: 0-4-0T csb
Replies: 18
Views: 5990

Re: 0-4-0T csb

I can't see much point in putting a CSB into an 0-4-0T: pitch stability will be more manageable with 4 separate twin-support springs. I think you are heading for a metaphorical beating up on Friday……………….. lookyou 'ere If anyone is contemplating this, easy way of placing the anchors is:- Centre anc...
by billbedford
Thu Oct 25, 2012 4:05 pm
Forum: Central London (CLAG)
Topic: CLAG meetings
Replies: 2
Views: 3630

CLAG meetings

After a modicum of discussion it was decided that the next CLAG meeting will be on the 16th of November. Thereafter meetings will be on the second Friday of the month. Unless, that is, someone has something really exciting to tell/show us and then extra dates can be arranged. The meetings take place...
by billbedford
Mon Oct 15, 2012 8:51 am
Forum: Chassis and Suspensions
Topic: Driving wheel axle material
Replies: 94
Views: 27301

Re: Driving wheel axle material

Loctite is not a glue. It is a retainer. Meaning it reacts with steel in the absence of air and expands slightly, making a tighter force fit. It does not react in anyway with plastic.
But apart from that. If a wheel bore is less than the axle diameter just how thick will a glue film be?
by billbedford
Sun Oct 14, 2012 5:03 pm
Forum: Chassis and Suspensions
Topic: Driving wheel axle material
Replies: 94
Views: 27301

Re: Driving wheel axle material

Quite right, Bill, a few microns either way is not the issue. What is of issue is a value a hundred or a thousand times that. Generally, anything 0.1235" or less will be useless IMO. It might suit a tight Sharman wheel bore, but an Ultrascale bore will not grip that sufficiently. And let's rem...
by billbedford
Thu Oct 11, 2012 8:39 am
Forum: Chassis and Suspensions
Topic: Driving wheel axle material
Replies: 94
Views: 27301

Re: Driving wheel axle material

paultownsend wrote:only the drawn stuff which is not accurate eneough for axles.

Really??????
Given the way that most frames are designed and built I would think a few micron +- on the axles were the least of people's problems. But then, P4 builders do like their hair shirts.
by billbedford
Wed Oct 03, 2012 7:46 am
Forum: Chassis and Suspensions
Topic: Driving wheel axle material
Replies: 94
Views: 27301

Re: Driving wheel axle material

I am pleased to hear that you managed to get these materials to work together, Paul. Can I ask, when using the tube and rod from Eileen's, how you cut the tube after assembling it onto the rod? It's best to cut the tube before assembling the axles. Also it is a good idea to make the inner rod sligh...

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