Search found 321 matches

by allanferguson
Tue Jul 20, 2010 11:17 pm
Forum: Chassis and Suspensions
Topic: Loco Suspension, fitting CSBs
Replies: 152
Views: 100032

Re: Loco Suspension, fitting CSBs

I'm just into building my first CSB loco (a CR 4-4-0) I've used Brassmasters hornblocks, with old fashioned handrail knobs in holes drilled in the bearings. the lateral displacement is only 0.3mm (per Brassmasters drawing) and it seems to work OK. We'll see when there's a loco body on top! DSCF0002....
by allanferguson
Tue Jul 06, 2010 9:14 pm
Forum: Coaches and NPCS
Topic: Kean Maygib 3'7" coach wheels
Replies: 27
Views: 8976

Re: Kean Maygib 3'7" coach wheels

Mathew said "In reply to the gent who asked about measuring wheels........." Thank you very much for showing us these. It's fascinating to see how the real railway does it. Presumably the wheel disk is of a known diameter, so just add twice the rim thickness to get the overall diameter? Al...
by allanferguson
Mon Jul 05, 2010 11:47 am
Forum: Coaches and NPCS
Topic: Kean Maygib 3'7" coach wheels
Replies: 27
Views: 8976

Re: Kean Maygib 3'7" coach wheels

"Well at 1:20 for something well under 5 inches you are looking at less than a quarter of an inch difference." With respect(!) 1 in 20 on each side of the wheel equals 1 in 10 on the diameter. "The drawings usually specify where the diameter is to be measured, normally close to the ce...
by allanferguson
Mon Jul 05, 2010 10:17 am
Forum: Coaches and NPCS
Topic: Kean Maygib 3'7" coach wheels
Replies: 27
Views: 8976

Re: Kean Maygib 3'7" coach wheels

This is not a field in which I can profess any expertise, but it ran through my mind that there must be nearly a half inch difference between the diameter measured at the flange root, and the diameter at the front face of the wheel. I think the quoted diameter is the former(?), so which can you meas...
by allanferguson
Sun Jun 20, 2010 11:26 pm
Forum: Other Workshop Practice
Topic: Best fillers for whitemetal?
Replies: 27
Views: 14448

Re: Best fillers for whitemetal?

Will L wrote: Surface blemishes should be dealt with by painting stage fillers This thread has produced much from which I've learnt, and I must say I agree with the general tenor of the remarks about low temperature soldering. For me the key was the purchase (on the advice of John Brighton at a Scal...
by allanferguson
Sun Jun 13, 2010 10:03 pm
Forum: CHEAG
Topic: CHEAG - the Inaugural Meeting
Replies: 3
Views: 3353

Re: CHEAG - the Inaugural Meeting

I suspect, in your case, with a soft Scotch accent... Please sir...... Scotch is whisky or porridge; our esteemed chairman is Scottish through and through, and while I'm sure he would enjoy a drop of the cratur, I don't believe this would ever be reflected in his accent! May I add my best wishes fo...
by allanferguson
Sat May 22, 2010 8:40 pm
Forum: Tools and Techniques
Topic: Flux query
Replies: 8
Views: 5447

Re: Flux query

When applying layers of panelling it has been my practice to drill a hole (or holes) in the inner (hidden) layer, and solder through those from the back. Hold the front layer in place with transparent tape -- it should survive just long enough..... I should say that I have never used an RSU so can't...
by allanferguson
Fri Apr 30, 2010 5:23 pm
Forum: Track and Turnouts
Topic: Fishplate conundrum
Replies: 15
Views: 5531

Re: Fishplate conundrum

Keith, thanks for the amplification. I hadn't read that section. I'm building (very) pre group track with interlaced timbering,loose heel switches, etc, so the P4 Track Co kits are not directly relevant, and I'm using what bits are available and can be made to suit. At least not many people can argu...
by allanferguson
Fri Apr 30, 2010 4:08 pm
Forum: Track and Turnouts
Topic: Fishplate conundrum
Replies: 15
Views: 5531

Re: Fishplate conundrum

Recently using, for the first time, Exactoscale Check Rail Chairs (sic), I was a bit taken aback to realise that some of the chairs on the sprue are set for a wider flangeway, which I take to be for the flare at the ends. There's nothing in the exactoscale instructions (that I can find) mentioning t...
by allanferguson
Sat Apr 24, 2010 11:04 pm
Forum: Track and Turnouts
Topic: Polypipe for ply sleepers
Replies: 14
Views: 7202

Re: Polypipe for ply sleepers

I do sometimes look at the workbench and wonder which is more dangerous -- the bottle of Butanone or the glass of Bowmore. Either way I reckon dementia or a stroke will get me first! But I don't let my grandchildren anywhere near the workbench (or the whisky bottle!) Allan p.s. Has anyone else dippe...
by allanferguson
Mon Apr 05, 2010 12:36 am
Forum: Materials and Techniques
Topic: Baseboard materials
Replies: 25
Views: 14214

Re: Baseboard materials

[quote="Terry Bendall"]I have said this before but at the risk of being tiresome, I will repeat it again. In my view as someone who used to teach woodwork in schools, the best material for baseboards is 12mm thick birch plywood. It must be birch, not any other timber and is by no means che...
by allanferguson
Wed Feb 10, 2010 12:09 am
Forum: Coaches and NPCS
Topic: laminated roof problem
Replies: 8
Views: 5137

Re: laminated roof problem

I've never been happy with plastic roofs -- they don't seem to be stable unless firmly glued on. But I hate being unable to access the inside, so have always made my roofs from brass sheet, with spring clips fitted to secure them inside the ends. They can easily be removed and will reliably maintain...
by allanferguson
Fri Jan 29, 2010 12:44 am
Forum: Starting in P4
Topic: West of Scotland Group's "Starters" Build a loco project
Replies: 152
Views: 81122

Re: West of Scotland Group's "Starters" Build a loco project

A most interesting thread, Allan, and excellent that an experienced builder can put across the basic "how to" stuff from which we can all take something, however experienced. I was glad to see Russ had picked up on the issue of the quartering jig while I was still trying to create an illus...
by allanferguson
Fri Jan 29, 2010 12:44 am
Forum: Steam Locomotives
Topic: West of Scotland Group's "Starters" Build a loco project
Replies: 145
Views: 50282

Re: West of Scotland Group's "Starters" Build a loco project

A most interesting thread, Allan, and excellent that an experienced builder can put across the basic "how to" stuff from which we can all take something, however experienced. I was glad to see Russ had picked up on the issue of the quartering jig while I was still trying to create an illus...
by allanferguson
Mon Jan 18, 2010 10:22 pm
Forum: Chassis and Suspensions
Topic: Axle/hornblock alignment jigs
Replies: 41
Views: 16708

Re: Axle/hornblock alignment jigs

I've written this out already, previewed it, then hit the back button to amend it, whereupon it disappeared. This is version 2, and may differ from version 1. :( I go along with Allan Goodwillie about the cost of some of these jigs (and I have some of them). So I humbly offer the gadget I'm using fo...
by allanferguson
Sun Nov 22, 2009 11:52 pm
Forum: Wagons
Topic: Wheels
Replies: 11
Views: 9448

Re: Wheels

I have not used any BB gauge for some time past, preferring to check the wheels with a digital caliper. This lets me know just how much I'm inside (or outside) the tolerances. It also makes it easier to check only the rim; also by checking at various points around the rim I can check for squareness....
by allanferguson
Thu Oct 15, 2009 11:54 pm
Forum: Tools and Techniques
Topic: Annealing
Replies: 10
Views: 5925

Re: Annealing

Brass, copper, etc can only be hardened by working them (bending, stretching, hammering -- like my back.....). They can be softened by heating as described. Carbon steel can be hardened and tempered by heating. But it can also be softened -- try it with a piece of piano wire. Allan Ferguson
by allanferguson
Sat Sep 05, 2009 4:11 pm
Forum: Steam Locomotives
Topic: Neilson Industrial / Caledonian etc 12" mineral engine
Replies: 12
Views: 5557

Re: Neilson Industrial / Caledonian etc 12" mineral engine

Slightly late, I realised that I have a picture of CR 502 of this class, built 1876. It is HMRS ref AAC626. I can't swear it's identical to yhe High Level kit -- it has a roof on pillars, and a rather truncated chimney. According to Baxter, it was one of a class of 14, and was scrapped in 1921. Howe...
by allanferguson
Fri Aug 14, 2009 9:21 pm
Forum: Steam Locomotives
Topic: Neilson Industrial / Caledonian etc 12" mineral engine
Replies: 12
Views: 5557

Re: Neilson Industrial / Caledonian etc 12" mineral engine

I note with interest the comments re CSB's for this loco, and I am very concious of the benefits in smooth running they can bring. However, I'm old enough to remember seeing shunting locos of this general type, and I would have to say that even on the main line smooth was not the adjective one would...
by allanferguson
Mon Mar 09, 2009 10:57 pm
Forum: Track and Turnouts
Topic: P4 Track Co Standard and Gauge Widened Bases
Replies: 17
Views: 8330

Re: P4 Track Co Standard and Gauge Widened Bases

I just caught up with this thread. I happen to have some exactoscale widened track on the bench, so I measured it. It is 19.05 - 19.06 mm gauge, i.e. about 0.23 mm wide. I need to have curves of around 1050mm on the non scenic ends of the layout, but I model pre BC (Bogie Coaches!) which means gener...
by allanferguson
Sun Jan 04, 2009 11:38 pm
Forum: Electrics
Topic: More DCC controlled couplings
Replies: 21
Views: 14002

Re: More DCC controlled couplings

If you were going ahead with commercial production, at the price you quoted, I'd be interested in a small quantity. This seems to me to be an excellent idea, and for me starting from scratch makes more sense than many underboard electromagnets. I'd still need some for goods yards etc, but the situat...

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