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by grovenor-2685
Tue May 21, 2019 8:24 pm
Forum: Track and Turnouts
Topic: Joggled Stockrails
Replies: 24
Views: 933

Re: Joggled Stockrails

Surely the very issue that makes many people use joggles even when not modelling the GWR is that if we don't use a joggle the blades HAVE to taper to zero - at the gauging height - if they are not to be undergauge relative to the opposite stockrail at their tips? Not quite zero actually as the set ...
by grovenor-2685
Mon May 20, 2019 1:20 pm
Forum: Exhibitions
Topic: Show attacked
Replies: 33
Views: 1449

Re: Show attacked

Story hit the newspapers today.
by grovenor-2685
Sat May 18, 2019 7:30 pm
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 17
Views: 2138

Re: Scaleforum 2019

dcockling wrote:
Phil O wrote:David, Is there any progress on the bus timetable?
Thanks Phil


Hi Phil,

Which bus and which David? :?

Or are you thinking of David Lane and Railex next weekend?

All the Best
Danny

In helpful spirit railex details are here http://www.railex.org.uk/railex2019v.htm
by grovenor-2685
Tue May 14, 2019 9:44 am
Forum: Guest Book
Topic: RE: Chassis Speed Building
Replies: 15
Views: 1060

Re: RE: Chassis Speed Building

Is any of the stock in the video converted to P87? No way to tell from that video.
Rgds
by grovenor-2685
Thu May 09, 2019 12:44 pm
Forum: Chassis and Suspensions
Topic: CCU for LMS 6-wheel Bogie
Replies: 9
Views: 404

Re: CCU for LMS 6-wheel Bogie

Masokits do one also, as an alternative.
by grovenor-2685
Thu May 09, 2019 12:43 pm
Forum: DCC
Topic: DCC Bus Wire
Replies: 10
Views: 783

Re: DCC Bus Wire

If it's good practice to avoid a loop, then surely this is the thing to do, especially as it doesn't cost anything The DCC system is agnostic on a loop in the bus, if the layout has a loop in the track, then a loop in the bus has the benefit of reducing voltage drop in the bus. But if there is a go...
by grovenor-2685
Mon May 06, 2019 10:45 am
Forum: DCC
Topic: DCC Bus Wire
Replies: 10
Views: 783

Re: DCC Bus Wire

This seems to ba an area where misunderstandings often arise. There is no problem installing the bus wires as a continuous loop, just like the rails in a simple oval. But its not required, so in your case you can leave a gap in the bus wires at the doorway, whatever suits your setup. The DCC power a...
by grovenor-2685
Sun Apr 28, 2019 9:03 pm
Forum: Starting in P4
Topic: Problem Arising From My First Morgan GWR Underframe
Replies: 13
Views: 1038

Re: Problem Arising From My First Morgan GWR Underframe

Which of Michael Clark’s Masokit etch has the coning gauge? Sounds like a very useful item to have. I'll check when I am back home this evening. Rgds Check not done very well, no such frets in my wagon box, so probably on a coach bogie fret but I can't find the relevant box, its to far into the lof...
by grovenor-2685
Sun Apr 28, 2019 10:04 am
Forum: Starting in P4
Topic: Problem Arising From My First Morgan GWR Underframe
Replies: 13
Views: 1038

Re: Problem Arising From My First Morgan GWR Underframe

Which of Michael Clark’s Masokit etch has the coning gauge? Sounds like a very useful item to have.

I'll check when I am back home this evening.
Rgds
by grovenor-2685
Wed Apr 24, 2019 2:17 pm
Forum: Track and Turnouts
Topic: rail/wheel profile - prototype has problems too
Replies: 22
Views: 1403

Re: rail/wheel profile - prototype has problems too

Might not the speed of the train be a question? After the previous Ordsall Road accident where it became clear newly profiled P1 wheels could flange climb, and the lack of a flange lubricator on this curve for moves in this reverse direction, I'd have thought a simple recommendation could be for si...
by grovenor-2685
Mon Apr 22, 2019 5:33 pm
Forum: Guest Book
Topic: REF: Rail wheel profile and "to do" list update
Replies: 5
Views: 651

Re: REF: Rail wheel profile and "to do" list update

Have you already described elsewhere how you make the crossings of the street track in your photo?


They are etched, full details on Andy's website http://www.proto87.com/
Rgds
by grovenor-2685
Sun Apr 21, 2019 9:58 am
Forum: Track and Turnouts
Topic: rail/wheel profile - prototype has problems too
Replies: 22
Views: 1403

Re: rail/wheel profile - prototype has problems too

Isn't our wheel profile already designed to approximate a worn profile, which also has worn to a deeper flange? Well, no it isn't. see the P4 standards in the digest. 2. The tyre profile is based on BS 276 contour A. 3. All dimensions are in millimetres. 4. The tolerances on any contour tools used ...
by grovenor-2685
Mon Apr 15, 2019 4:35 pm
Forum: Track and Turnouts
Topic: Crossing Vee Jig
Replies: 26
Views: 2825

Re: Crossing Vee Jig

IMHO you are overthinking it, making a jig my way on the actual template will be accurate enough.
Rgds
by grovenor-2685
Sat Apr 13, 2019 6:48 pm
Forum: Steam Locomotives
Topic: Wainwright H Class P4 conversion
Replies: 30
Views: 1883

Re: Wainwright H Class P4 conversion

I found them near-impossible to disassemble if you get the quartering a bit wrong, as the boss will not let go of the axle... . The original P4(Studiolith) ones have a taper fit between bush and axle, like the flywheel on a Mini or Morse drills in a lathe, the come apart very easily with a sharp ta...
by grovenor-2685
Thu Apr 11, 2019 4:16 pm
Forum: Steam Locomotives
Topic: Wainwright H Class P4 conversion
Replies: 30
Views: 1883

Re: Wainwright H Class P4 conversion

billbedford wrote:So how many people want H class wheels?
Drop me an email if you do.

All you listing your wants on here might like to note what Bill wrote.
Rgds
by grovenor-2685
Thu Apr 11, 2019 4:14 pm
Forum: Starting in P4
Topic: P4 wagon Compensation(springing)
Replies: 31
Views: 1845

Re: P4 wagon Compensation(springing)

Cone depth is very consistent if you stick with one supplier

That has not been my experience, you must be lucky. :)
Rgds
by grovenor-2685
Wed Apr 10, 2019 3:59 pm
Forum: Starting in P4
Topic: P4 wagon Compensation(springing)
Replies: 31
Views: 1845

Re: P4 wagon Compensation(springing)

Watch out for a peculiarity - waisted bearings have shallower cones than plain which I am convinced is a drawing error. There's no obvious reason for this but there's no mechanism for changing it. Its a bit more complex than this, cone depth is not very consistent, Masokits provides a cone depth ga...
by grovenor-2685
Fri Mar 22, 2019 5:25 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 29583

Re: Crab Comet conversion

A related topic on RMweb came up with this source for screws 1mm at 10mm length, packs of 100 at a very reasonable price. https://www.ebay.co.uk/itm/M1-M1-2-M1-6-M2-M2-5-A2-STAINLESS-MACHINE-SCREWS-CSK-COUNTERSUNK-SLOTTED-BOLTS/191481004526?hash=item2c952841ee:m:m9CPBayODBxwvCaSOm9QZMQ regards I or...
by grovenor-2685
Wed Mar 20, 2019 11:38 am
Forum: Signals and Control Systems
Topic: Advice sought on point rodding routing
Replies: 7
Views: 584

Re: Advice sought on point rodding routing

I reckon I should take the rodding along the platform edge from the signal box, across the rebuilt coal siding and then presume that the original run wouldn't have been moved when the siding was removed, that would leave a track width gap between the rodding and the main line. That makes perfect se...
by grovenor-2685
Tue Mar 19, 2019 10:15 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 29583

Re: Crab Comet conversion

A related topic on RMweb came up with this source for screws 1mm at 10mm length, packs of 100 at a very reasonable price. https://www.ebay.co.uk/itm/M1-M1-2-M1-6-M2-M2-5-A2-STAINLESS-MACHINE-SCREWS-CSK-COUNTERSUNK-SLOTTED-BOLTS/191481004526?hash=item2c952841ee:m:m9CPBayODBxwvCaSOm9QZMQ regards
by grovenor-2685
Wed Mar 13, 2019 2:49 pm
Forum: Track and Turnouts
Topic: Modelling loose heeled switches in 4mm
Replies: 34
Views: 2624

Re: Modelling loose heeled switches in 4mm

Phil,
It would be finger trouble, you did the 'place in line' twice, but both times for the same image, hence the other image just appears at the bottom.
You can just go back in and edit it.
Regards
by grovenor-2685
Mon Mar 11, 2019 4:14 pm
Forum: Steam Locomotives
Topic: GWR, London Transport lines safety trip-cock
Replies: 10
Views: 584

Re: GWR, London Transport lines safety trip-cock

Tripcocks were required on the widened lines and post steam were fitted to the diesels working there, 23, 24, 31 etc. Also required for the Hammersmith and City and 3 2251 class locos had tripcocks for that. Trains running into Paddington Suburban (platforms 13 - 16) also required tripcocks which wo...
by grovenor-2685
Sun Mar 03, 2019 10:43 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 29583

Re: Crab Comet conversion

That picture was published by the NRM and offered publicly for use as a screensaver.
Regards
by grovenor-2685
Sat Mar 02, 2019 10:00 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 29583

Re: Crab Comet conversion

While I'm thinking about it I'm also thinking about, but rather more hazily, the only bit of wholly cosmetic modelling on the project, the cylinder drain cocks. I'm not terribly acquainted with them visually, and photos don't exactly home in on those details. An impression is all that's really need...

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