Search found 576 matches

by John Palmer
Mon Jun 29, 2020 2:20 pm
Forum: Layouts and Operations
Topic: Kyle of Lochalsh MPD - track layout
Replies: 29
Views: 927

Re: Kyle of Lochalsh MPD - track layout

Hi, Martin, I agree this is a hard one to call, but having engaged in a similar line-drawing exercise I come to a slightly different conclusion. When drawing my lines I try to use the maximum point of contrast in the underlying picture in order to optimise their alignment. In this case my l/h line a...
by John Palmer
Mon Jun 29, 2020 12:13 pm
Forum: Layouts and Operations
Topic: Kyle of Lochalsh MPD - track layout
Replies: 29
Views: 927

Re: Kyle of Lochalsh MPD - track layout

Looking at the tandem's furthest switch in the Boyes photograph to which I posted a link, there is a pronounced set in the right hand stock rail, but I'm hard pressed to see any set in the stock rail opposite - so was this really a split deflection switch? In the MLS-copyright photograph of 1934, th...
by John Palmer
Sun Jun 28, 2020 5:12 pm
Forum: Layouts and Operations
Topic: Kyle of Lochalsh MPD - track layout
Replies: 29
Views: 927

Re: Kyle of Lochalsh MPD - track layout

That Clan Goods has some ominous holes where there should be rivets holding the beam on. DaveB I thought they were likely to be the holes used for bolting a snowplough to the buffer beam. From memory, some Scottish K2s had a length of angle iron attached to the running plate adjacent to the buffer ...
by John Palmer
Sat Jun 27, 2020 4:25 pm
Forum: Layouts and Operations
Topic: Kyle of Lochalsh MPD - track layout
Replies: 29
Views: 927

Re: Kyle of Lochalsh MPD - track layout

Two more shots of the coal stage from Ernie Brack's archive, the first confirming that the kickback terminated just short of the stage: https://www.flickr.com/photos/irishswissernie/49413495242/in/photostream/ https://www.flickr.com/photos/irishswissernie/49413294851/in/photostream/ . And a shot sho...
by John Palmer
Sat Jun 27, 2020 2:48 pm
Forum: Layouts and Operations
Topic: Kyle of Lochalsh MPD - track layout
Replies: 29
Views: 927

Re: Kyle of Lochalsh MPD - track layout

Here are links to three more photographs that may assist as regards the kickback from the west-side shed road: https://www.ambaile.org.uk/preview/en/27630/1/EN27630-The%20turntable%20and%20shed%20at%20Kyle%20of%20Loch.jpg https://www.rail-online.co.uk/p129376112/h67FA4852#h67fa4852 https://thetransp...
by John Palmer
Sat Jun 20, 2020 12:56 am
Forum: Track and Turnouts
Topic: Kyle of Lochalsh tandem turnout length and other questions
Replies: 30
Views: 721

Re: Tandem turnout length question

Can't produce a photograph, but the North British certainly produced drawings for diamonds and slips with partially interlaced sleepering (on the acute crossings), although they were obliged to use timbering up to 14" in width in the centre of the formation to support the K crossings. https://8...
by John Palmer
Thu May 07, 2020 6:49 pm
Forum: Track and Turnouts
Topic: Mysterious pyramid
Replies: 6
Views: 575

Re: Mysterious pyramid

Lots of interesting stuff in that photograph. Weighted detector on the connections to the turnout, and what looks like a special traffic set in the background that includes at least one Ironclad (?Diagram 213 Brake Third). But the really interesting vehicle is the one in the foreground: it appears t...
by John Palmer
Thu Apr 30, 2020 12:19 pm
Forum: Tools and Techniques
Topic: Collet chuck for lathe
Replies: 16
Views: 845

Re: Collet chuck for lathe

The picture David has posted suggests to me that this lathe may be an example of Brian Perris' Pixi/Jason design re-worked by Ross and Alexander to offer a 2" centre height (see http://www.lathes.co.uk/jason/ ) and known as the 'New RandA. According to the linked page, "the very early head...
by John Palmer
Sun Apr 19, 2020 6:14 pm
Forum: Mark Tatlow
Topic: A Highland Miscellany
Replies: 300
Views: 94293

Re: A Highland Miscellany

Very impressed with the method for making the Midland pinnacles. That ring of wire filled with solder as the basis for the circular 'plate' in the middle of the casting has worked a treat! I can't quite make out whether you designed a notch into the profile of the pinnacle to locate the wire ring, a...
by John Palmer
Sun Apr 19, 2020 5:56 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 379
Views: 63996

Re: Brimsdown-The last grand project.

Thank you, Tony, for a really useful set of posts about wiring matters generally and the Edac connector system in particular. The scales have now fallen from my eyes as to how these work. For our Burnham layout, begun in the 1970's, we adopted for our board connectors the Belling Lee Unitor range of...
by John Palmer
Tue Apr 14, 2020 4:38 pm
Forum: Semaphore Signals
Topic: Double Distant
Replies: 2
Views: 997

Re: Double Distant

My first thought on this was that one distant mounted above another might cover the situation where one distant related to the the block post in advance whilst the other was a 'gate distant' for a level crossing. Based on this, a quick search against 'two distant signals on same post' produced a lin...
by John Palmer
Thu Mar 19, 2020 2:56 pm
Forum: Track and Turnouts
Topic: Ground Signals
Replies: 21
Views: 1400

Re: Ground Signals

May be worth noting for the purpose of these discussions that a level crossing does not count as an obstruction within the clearing point.
by John Palmer
Thu Mar 05, 2020 1:15 pm
Forum: Starting in P4
Topic: First chassis in P4
Replies: 49
Views: 3628

Re: First chassis in P4

Thanks to Dave for confirming that his reference was to radius centre drills, and to Terry for his comments on their theory and practice. I can see that in principle they ought also to improve the centring of a component on which a taper is to be generated. As to spotting drills, an interesting arti...
by John Palmer
Thu Mar 05, 2020 12:10 pm
Forum: Other Workshop Practice
Topic: Fixing Steel Axle to Plastic Gear
Replies: 10
Views: 1914

Re: Fixing Steel Axle to Plastic Gear

Don't know whether you have seen Captain Kernow's Class 22 conversion thread at https://www.scalefour.org/forum/viewtopic.php?f=21&t=2022&p=16334 , but if not then it may be worth a look. If you intend to press steel stub axles into the nylon gear muff, as shown in that thread, then it looks...
by John Palmer
Wed Mar 04, 2020 3:27 pm
Forum: Starting in P4
Topic: First chassis in P4
Replies: 49
Views: 3628

Re: First chassis in P4

Dave, I've taken a look at the Drill Service (Horley) website but couldn't find any centre drills the shape of which was described as 'curved'. I think you are probably referring to what the website describes as 'radius type' drills but would like to be sure I haven't got my wires crossed. In partic...
by John Palmer
Tue Feb 25, 2020 2:06 am
Forum: Chassis and Suspensions
Topic: Best wire for collectors
Replies: 14
Views: 1705

Re: Best wire for collectors

There is a thread from 2011 at https://www.scalefour.org/forum/viewtopic.php?f=19&t=1247&p=8650 that contains some interesting thoughts on the subject. I'm interested in the idea of using gold as the pick-up material bearing on the wheel rim, and have gone so far as to buy a small quantity o...
by John Palmer
Tue Feb 25, 2020 1:04 am
Forum: Wagons
Topic: Queen Mary Bogies
Replies: 4
Views: 751

Re: Queen Mary Bogies

I think https://www.roxeymouldings.co.uk/product/44/4a530-sr-8ft-standard-coach-bogie-pair-/ should fill the bill. However, I see that the product code for these bogies is 4A530, which is different to the 4A208 code on the stock of etched Roxey SR 8' Steam Carriage Bogies in my stash, so it may be a...
by John Palmer
Fri Feb 21, 2020 7:36 pm
Forum: Lord Colnago
Topic: Goings on at the Norfolk Wagonarium
Replies: 126
Views: 35931

Re: Goings on at the Norfolk Wagonarium

... a piece of hard plastic. (For the life of me I can't remember what its called. Perhaps someone can put me out of my misery). Looks like a sheet of Tufnol. I find the heat resistant property of this material very useful as a mounting for jigs to locate small parts that need to be soldered togeth...
by John Palmer
Mon Feb 17, 2020 11:25 am
Forum: MarkS
Topic: 1P 0-4-4T chassis by Rumney
Replies: 45
Views: 14439

Re: 1P 0-4-4T chassis by Rumney

Steve,

Yes indeed, my plans are laid to attend Scalefour North on both days; look forward to seeing you there.
by John Palmer
Sun Feb 16, 2020 3:21 pm
Forum: On My Workbench
Topic: High Level 03 Chassis Build
Replies: 44
Views: 9313

Re: High Level 03 Chassis Build

very good for photo-etched overlays. I'd very much like to know exactly which Loctite product this is, there being so many in the Loctite range. Sounds like it might be just what I need for bonding etched window frames to clear glazing material - in my case the Slaters variety: .010" and .040&...
by John Palmer
Sun Feb 16, 2020 3:09 pm
Forum: MarkS
Topic: 1P 0-4-4T chassis by Rumney
Replies: 45
Views: 14439

Re: 1P 0-4-4T chassis by Rumney

Steve, I'm looking forward to further details of the build, whether on this thread or a new one. Presumably you are contemplating a scratch build of everything above frame level? Your point about putting an extra millimetre into the frames' length because you're not using the Craftsman body comes as...
by John Palmer
Mon Feb 03, 2020 5:21 pm
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 3813

Re: Another newcomer's question re wagon suspension

I've been entirely satisfied with my 'High Accuracy Vernier Caliper 0-150mm / 0-6", Thumb grip (Sku 531-128)' which I bought direct from Mitutoyo in 2016 for just under £50. Although I find myself using a micrometer for most measurement of workpieces on my Unimat, the Mitutoyo caliper has seen ...
by John Palmer
Fri Jan 31, 2020 10:42 am
Forum: Exhibitions
Topic: Scalefour North 2020
Replies: 20
Views: 4014

Re: Scalefour North 2020

Whoops, I'd forgotten that the last time I returned from Wakefield via London it was not in one of the awful Azumas with their rock-hard seating. But we've suffered the GWR variant on long distance services for some time now, so I have a fair idea of what I've let myself in for. The only bright spot...
by John Palmer
Fri Jan 31, 2020 2:29 am
Forum: Layouts and Operations
Topic: South Pelaw Junction
Replies: 116
Views: 24355

Re: South Pelaw Junction

Brilliant way of sidestepping the potential for grief when aligning and fixing paper templates! Did you arrange for any part of the plan to be mirror-etched on the underside of the board, e.g. to assist location of droppers or other connections that needed to be made through the deck?
by John Palmer
Fri Jan 31, 2020 2:22 am
Forum: Exhibitions
Topic: Scalefour North 2020
Replies: 20
Views: 4014

Re: Scalefour North 2020

I will have a spare seat that would get you back to Bristol. Gordon Thanks, Gordon, but as mentioned above I think I now have a satisfactory rail itinerary in place. Actually, it depends on my catching the last train calling at Highbridge on Sunday night, so if I'm delayed on the ECML leg I'll prob...

Go to advanced search