Search found 1710 matches

by Will L
Wed Oct 21, 2020 10:03 am
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 391
Views: 117220

Re: The Burford Branch

It's glowing because it is picking up a current from capacitive effects of your Mains wiring. You can fit a neon indicator across the bulb to eliminate the problem which is easily achieved by fitting a socket with integral neon indicator. Nice idea Alan, and I had read something similar else where,...
by Will L
Tue Oct 20, 2020 6:38 pm
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 391
Views: 117220

Re: The Burford Branch

You are not alone. I recently replaced the bulb in the light beside my bed with an mains voltage LED bulb. Much to my surprise the bulb now glows slightly when switched off. To stop it doing so I have to unplug the lamp completely.
by Will L
Tue Oct 20, 2020 2:28 pm
Forum: Starting in P4
Topic: Carriage ride height and springing
Replies: 40
Views: 3412

Re: Carriage ride height and springing

Just as a matter of interest, you replaced the supplied D&S bogies with some rather complicated fully sprung ones. Did you ever assemble the D&S bogies and, if not, would it be worthwhile building one to see if it gives you the correct ride height? DT That's a very good idea, David, thank y...
by Will L
Sun Oct 18, 2020 5:25 pm
Forum: Will L
Topic: Buck Jumping on Mass
Replies: 124
Views: 50887

Re: Buck Jumping on Mass

Paul

Thanks for the help. I've looked at many a photo and the run of the feed water pipe is clear, but it will take a close up of the injector proper answer the questions in my head.
by Will L
Sun Oct 18, 2020 11:49 am
Forum: Will L
Topic: Buck Jumping on Mass
Replies: 124
Views: 50887

Re: Buck Jumping on Mass

Thanks for taking the time Paul Despite the obscuring signboard on the last image, I think the overall message is the same - it's remarkably difficult to pick out anything with certainty in the gloom underneath the locomotive. There is a strong element of truth in that, but you have answered one que...
by Will L
Sat Oct 17, 2020 2:38 pm
Forum: Will L
Topic: Buck Jumping on Mass
Replies: 124
Views: 50887

Re: Buck Jumping on Mass

A quick question. I'd like to draw on the huge knowledge base the readership of this forum represents. I'm about to install the plumbing associated with the injectors. No problem on the J65 where the injectors proper are hidden behind the footplate valance/cab floor but I do have issues with the J69...
by Will L
Sat Oct 17, 2020 11:54 am
Forum: Steam Locomotives
Topic: class 15xx pannier tank (with a bit of 97xx thrown in)
Replies: 96
Views: 29889

Re: class 15xx pannier tank (with a bit of 97xx thrown in)

Not what I meant. What I was getting at is that some may achieve better balanced / more effective measurements out of the Turner spreadsheet. I terms of balance it doubt it. It is true that are a number of solutions for any wheelbase. However used as intended Alan's spreadsheet (and mine) will give...
by Will L
Fri Oct 16, 2020 4:26 pm
Forum: Steam Locomotives
Topic: class 15xx pannier tank (with a bit of 97xx thrown in)
Replies: 96
Views: 29889

Re: class 15xx pannier tank (with a bit of 97xx thrown in)

Horsetan wrote:Fiddling with the Turner spreadsheet produced this initial plot. There is probably a better calculation out there....
Not necessarily, Alan's spread sheet does a perfectly good job. It looks OK to me, just make sure the fixed fulcrum points don't line up with anything vital on the chassis.
by Will L
Thu Oct 15, 2020 4:39 pm
Forum: Chassis and Suspensions
Topic: Singles and suspension
Replies: 17
Views: 3738

Re: Singles and suspension

...Barry Luck seemed perfectly happy, as Terry points out. http://www.lbscrmodels.co.uk/sutherland.html That was an interesting read but I do wonder if the right lessons were being learned. If any loco is having trouble dragging itself around, I would have to start by looking at the weight distribu...
by Will L
Wed Oct 14, 2020 9:56 am
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Michael Waldron wrote:Will I’ve tried to send a PM, but not sure if it actually sent.
Mike

Sorry Mike I've received nothing. You could try the email option?
by Will L
Tue Oct 13, 2020 7:12 pm
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Clearly agrees with Julian's view that you need to ensure plenty of weight on the front axle.
by Will L
Mon Oct 12, 2020 9:12 pm
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Just by the by: Axle weights for the Stroudley singles were as follows:- Grosvenor: Leading axle 12tons. Driving axle 15 tons. Trailing axles 10 tons. Not quite equal. Abergavenny: 11t 6cwt. 15t 0cwt 7t 18cwt Production G: 12t 0cwt. 13t 10cwt. 7t 18cwt Sussex: 11t 2cwt. 14t 7cwt. 10t 0cwt. Mike The...
by Will L
Mon Oct 12, 2020 11:41 am
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Ok I know I suggested not complicating things but... I wasn't thinking of anything non-linear, WillL just fiddling with the rate of the springs. In your csb all springs are deflected the same amount (-ish as axlebox may not co-incide with point of greatest deflection) so you can only increase the lo...
by Will L
Mon Oct 12, 2020 10:28 am
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Well, I do have several singles to build! Thought you might like to see the actual prototypes! One is already built, though the chassis is not yet fitted with its motor - the unique no203 ‘Sussex’. 203-Sussex-a 2.jpg Then three or four other singles - the small cylindered 325 ‘Abergavenny’, the lar...
by Will L
Sun Oct 11, 2020 5:03 pm
Forum: Starting in P4
Topic: Carriage ride height and springing
Replies: 40
Views: 3412

Re: Carriage ride height and springing

Given you know full spring compression takes you below the height you want, (i.e. the ride height you want is in the available range) and that the axle ends seem to be below mid travel in the W irons, I think putting in thinner wires is the obvious first choice.
by Will L
Sat Oct 10, 2020 12:32 pm
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

What you need here, WillL, is to modify your csb algorithm to enable the support points to be moved vertically. In this way you could have stiffer springs with low deflection for the carrying wheels and low rate but greater deflection on the drivers. This would address concerns about pitching as th...
by Will L
Wed Oct 07, 2020 10:50 am
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Think Wheelbarow. A rigid beam running back from the loco and allowed to pivot vertically where it joins the tender. It would need to pivot somewhere near the centre and would mean the tender would counteract any tendency for the loco to pitch forward or backward. It would not be affected by change ...
by Will L
Mon Oct 05, 2020 9:35 pm
Forum: Electrics
Topic: Scale Clocks
Replies: 11
Views: 1926

Re: Scale Clocks

There is no such thing as scale time. Movements over scale distances at scale speeds take the same time as the original. A clock which runs fast will make it impossible to run an actual working time table of any complexity to time. When we (CAG) operated Preston, which runs to a prototypical time ta...
by Will L
Fri Oct 02, 2020 6:10 pm
Forum: Scenery and Structures
Topic: Tanks (Septic?) as wagon loads?
Replies: 20
Views: 2231

Re: Tanks (Septic?) as wagon loads?

https://www.scalefour.org/forum/download/file.php?id=25714 I think there are lost of uses for a nondescript (probably) steel tanks like this, fuel oil/petrol for instance! Not sure why you should light on it being a septic tank in particular https://www.scalefour.org/forum/download/file.php?id=2573...
by Will L
Tue Sep 29, 2020 4:34 pm
Forum: Tools and Techniques
Topic: Glazing - your thoughts please
Replies: 29
Views: 2046

Re: Glazing - your thoughts please

David Thorpe wrote:I've tried a number of adhesives, but found Canopy Glue best. It looks just like PVA....

That's because it is just a fairly thick sort of PVA. Ordinary wood glues will do the same job.
I've never tried no more nails., its probably time I did

Will
by Will L
Fri Sep 18, 2020 11:18 pm
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Been following with great interest. It seems to me that even 30/40/30 might put too much weight on the leading & trailing. Clearly, going too far would lead to oscillating. 1/98/1 for example. But I'm wondering if 20/60/20 would work, or 25/50/25. Stephan I'm afraid I only know one way to find ...
by Will L
Fri Sep 18, 2020 4:20 pm
Forum: Will L
Topic: Buck Jumping on Mass
Replies: 124
Views: 50887

Buck Jumping on Mass - The Build Phase

Part 24 – Fitting Boiler Fittings, The minor players. A list of things to do here, very similar for both loco’s but with differences. Just for once I’ll cover them separately, starting with the J65. And yes there are bits on the locos in the pictures I haven’t covered yet but we will get there. Eve...
by Will L
Thu Sep 17, 2020 11:58 pm
Forum: Chassis and Suspensions
Topic: CSB for a Single Driver
Replies: 50
Views: 5347

Re: CSB for a Single Driver

Have to say that from a CSB point of view a 4-2-2 is a rather more complicated prospect than a 2-2-2, as weight carrying bogies complicate things. It certainly requires more thought than I have currently given to it, but I think I could do it OK. When done I would at least know what the weight distr...
by Will L
Wed Sep 16, 2020 1:22 pm
Forum: Jeremy Suter
Topic: scaleforum you tube test run
Replies: 29
Views: 2285

Re: scaleforum you tube test run

I had to log in to my Google account to then on to You Tube, then find Jeremy's posts and and chose the live streaming. Then it worked OK, if a bit pixelated, probably because his wife Pat was upstairs doing a days work over Zoom or similar.
by Will L
Wed Sep 16, 2020 11:09 am
Forum: Wagons
Topic: Formation (and size) of a pick-up goods train
Replies: 20
Views: 1281

Re: Formation (and size) of a pick-up goods train

...Is the neat station order maintained or do the empties not get in the way? Are the empties collected on the outward or return journey?.. Most yards are only shunted in one direction. and are designed that way. I think you will find that for a standard yard shunt done the simplest and quickest wa...

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