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by grovenor-2685
Tue Mar 02, 2021 7:03 pm
Forum: barrowroad
Topic: Bachmann 1P Johnson 0-4-4T 58072
Replies: 11
Views: 288

Re: Bachmann 1P Johnson 0-4-4T 58072

Dave Holt wrote:Do Gibson not supply a 3 mm axle wheel that is suitable?

Not in his listings unless the 5'3" Ivatt wheels (16sp) would do. The 3F/4F wheels have 2.5 mm axles.
by grovenor-2685
Sun Feb 28, 2021 11:07 pm
Forum: Guest Book
Topic: Exactoscale items for turnout construction
Replies: 1
Views: 207

Re: Exactoscale items for turnout construction

I would suggest getting the 1:8 turnout bases for the turnout and the double slip, easier than individual timbers. You need a triangular track gauge, item 190, not the i97 gauge, the latter is Ok for checking platform clearance and buffer height, not much use for building track. The 192 gauge is a s...
by grovenor-2685
Tue Feb 23, 2021 11:19 am
Forum: Chassis and Suspensions
Topic: Alan Gibson Loco axles
Replies: 34
Views: 2040

Re: Alan Gibson Loco axles

I haven't bought any wheelsets recently but previous experience was that they usually came a little long and needed to be shortened, given the variety of wheel bosses, supplying the axles at the longest rather than the shortest seems prerferable.
by grovenor-2685
Fri Feb 19, 2021 3:38 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

That Abbotford diagram has the text for FPL 14 in a confusing place, looks as though it refers to point 26 when it should be for point 29. I presume you mean Andoversford, Keith. FPL 14 does relate to 26; the branch is single, and the blue line behind it is a siding [probably a lie-by], 29 being th...
by grovenor-2685
Fri Feb 19, 2021 2:22 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

I think I would drop disc 14, no need for it. Well, not if you are happy that all the loco crews will notice that 13 has been reversed, somewhat risky IMHO. That Abbotford diagram has the text for FPL 14 in a confusing place, looks as though it refers to point 26 when it should be for point 29. And...
by grovenor-2685
Fri Feb 19, 2021 12:04 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

re item 1. See the diagrams for Melksham and Limply Stoke Tim posted, both follow the convention Noel recommended. re shunt signals, I would swap the numbers for 14 and 15 to keep the entry signal lever next to its crossover..To protect moves over 13, then (my number) does need to apply to all the s...
by grovenor-2685
Thu Feb 18, 2021 2:16 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

I am not at all sure that you are right to allocate 11 to both ends of the trailing crossover, and same for 13 for going into and out of the shed yard. Indeed this is a no-no, setting up a head on collision on the main lines. Each of those 4 shunts should have its own lever, usually either side of ...
by grovenor-2685
Tue Feb 16, 2021 7:10 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

Tim, Both the diagrams you put up have shunt signals reading over trailing crossovers up to the section signals, which bit is not GWR? Having two discs? 14 reads to the turntable, 13 to the up as there are two possible routes over the crossover. having one disc read either way is an option usually p...
by grovenor-2685
Tue Feb 16, 2021 6:09 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

He doesn't have a route wrong direction on the Up main, 13 reads in the up direction towards signal 3 which would be the section signal.
by grovenor-2685
Tue Feb 16, 2021 5:27 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

Standard GWR practice would see 15/20 as a crossover, with 20/24 as another crossover. Yes, that's how I would do it, hence my first comment. But FPL 25? Not needed. And where are the two routes 13/14? I can only see one route there into the yard. If you were pulling 13 off to run along the up main...
by grovenor-2685
Tue Feb 16, 2021 1:08 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

Is this a prototype numbering plan or one you have developed? Just that I would not expect the slip to be set like that, but some prototypes were unusual! And I can see some benefit if moves on and off the turntable are significantly more frequent than use of the trailing srossover via the slip. I d...
by grovenor-2685
Sun Feb 14, 2021 2:04 pm
Forum: Product Information
Topic: Exactoscale transfer boxes.
Replies: 6
Views: 532

Re: Exactoscale transfer boxes.

Thanks Andy, that will help me sort out the bits I have.
by grovenor-2685
Sat Feb 13, 2021 6:14 pm
Forum: Product Information
Topic: Exactoscale transfer boxes.
Replies: 6
Views: 532

Re: Exactoscale transfer boxes.

Ah,
The really new type, my bits are the Bernard era mark 2.
by grovenor-2685
Sat Feb 13, 2021 4:42 pm
Forum: Product Information
Topic: Exactoscale transfer boxes.
Replies: 6
Views: 532

Re: Exactoscale transfer boxes.

I would also like instructions, I'm sure I had some once! But I do have some parts so can probably help if you can work out what's missing.
by grovenor-2685
Thu Feb 11, 2021 7:06 pm
Forum: On My Workbench
Topic: LNWR Problem 2-2-2 CSBs
Replies: 13
Views: 715

Re: LNWR Problem 2-2-2 CSBs

I am also mindful of the implications regarding the static deflection when the beam is under the axle, that is to add the static deflection 0.5mm to the distance between the axle centre line and the carrier tag hole. The static deflection at the axle is upwards, so as I see it the 0.5 mm would be a...
by grovenor-2685
Sun Feb 07, 2021 10:24 pm
Forum: Track and Turnouts
Topic: Orientation of compensators
Replies: 8
Views: 909

Re: Orientation of compensators

Doesn't matter which way round it is, it converts a pull on one side to a push on the other regardless of orientation so just needs to be half way along the rodding run.
by grovenor-2685
Wed Feb 03, 2021 6:48 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 514
Views: 108469

Re: Brimsdown-The last grand project.

All the vids show it being used without a guard, be easy to lose a finger like that. There is a perspex guard with it as its shown on the pic with a PCB and in the photo of contents. They really should be using it in the vids.
by grovenor-2685
Fri Jan 29, 2021 9:35 pm
Forum: Painting and Weathering
Topic: Vallejo Model Air
Replies: 22
Views: 1626

Re: Vallejo Model Air

Chris explained that in some detail just 2 posts back. :)
by grovenor-2685
Tue Jan 26, 2021 9:19 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 514
Views: 108469

Re: Brimsdown-The last grand project.

Interesting report that, a litany of incompetence.
by grovenor-2685
Tue Jan 26, 2021 11:42 am
Forum: Chassis and Suspensions
Topic: Tender CSBs and motor torque
Replies: 27
Views: 1398

Re: Tender CSBs and motor torque

I do remember a suggestion being made in relation to the P4/Studiolith 2:1 gearboxes that 2 shafts could be used, one rotating in each direction. It meant using two such gearboxes,and I doubt anyone tried it.
by grovenor-2685
Mon Jan 18, 2021 2:13 pm
Forum: On My Workbench
Topic: Simons workbench industrials. More mineral wagons
Replies: 82
Views: 7129

Re: Simons workbench industrials. 16t mineral wagon

As built most 16T minerals had the white line running from the edge of the vertical framing next to the side door to the edge of the vertical framing next to the end door, at the level of that door's hinges, but without going onto any part of the framing, i.e. the ends were vertical, not at right a...
by grovenor-2685
Thu Jan 14, 2021 4:37 pm
Forum: Chassis and Suspensions
Topic: 3/32nd axles
Replies: 6
Views: 440

Re: 3/32nd axles

Can you not buy 3/32" rod and just cut to length?
by grovenor-2685
Thu Jan 14, 2021 3:03 pm
Forum: Track and Turnouts
Topic: 3-foot radius curves in P4
Replies: 26
Views: 2835

Re: 3-foot radius curves in P4

I expect that was normal 00 fine at 16.5. The Problem with that is the need for a wider back to back than that offered by RTR. Hence the 16.2 is to get the finer flangeways and still allow use of RTR. I don't think that 16.2 was in the picture in KX Models days, and the RTR was not what we have toda...
by grovenor-2685
Tue Jan 12, 2021 12:37 pm
Forum: Tools and Techniques
Topic: Society BFJ switch blade file suitability for FB rail
Replies: 3
Views: 591

Re: Society BFJ switch blade file suitability for FB rail

Blade filing jigs are a luxury rather than a neccessity, I have always done a TErry suggests and used a sawcut in a ply or MDF offcut to hold oneside of the foot while the other side is filed down.. The planing length is shown on the Templot diagrams and easily marked on the offcut as a filing guide...
by grovenor-2685
Thu Jan 07, 2021 11:13 am
Forum: Track and Turnouts
Topic: 3-foot radius curves in P4
Replies: 26
Views: 2835

Re: 3-foot radius curves in P4

The reason for my original query, the value of gauge widening needed, is that I’m considering various CAD/CAM methods to produce both the harbour and non-scenic trackage with maximum accuracy – so as mentioned above, I'll need to include gauge widening at the design stage. I suspect ypou are being ...

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