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by grovenor-2685
Sun Nov 22, 2020 9:33 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction
Replies: 29
Views: 3939

Re: Masokits etched chairs turnout construction

Excellent job Julian, those blades are a really good fit. I have found Masokits stretchers a bit frustrating, I do one that comes out just right then the next will play up and not solder together properly but you seem to have cracked it.
by grovenor-2685
Tue Nov 10, 2020 7:03 pm
Forum: Tools and Techniques
Topic: Scale Length Conversions
Replies: 34
Views: 1131

Re: Scale Length Conversions

I also saw that the 4mm answer was not twice the 2mm answer. I know why, and the reason is clearly visible if you look at the ratios, but it looks potentially to be a bit ambiguous to me. This is a problem started by Peco!, 2mm scale should not be 1:148 but 1:152.4. 1:148 was created by Peco (IIRC)...
by grovenor-2685
Mon Nov 09, 2020 7:07 pm
Forum: Track and Turnouts
Topic: common crossing vee angles
Replies: 33
Views: 1493

Re: common crossing vee angles

Someone has been confusing you, that reliable information was wrong. :) The 6 in B6 stands for a crossing angle of 1:6. Similarly B7 and B8 have crossing angles of 1:7 and 1:8 respectively. And so on..... The B indicates the design of the switch blades which run from A as the shortest up to G and be...
by grovenor-2685
Wed Nov 04, 2020 9:49 am
Forum: Lathe Work
Topic: Unimat SL spares
Replies: 11
Views: 1068

Re: Unimat SL spares

Google is your friend https://www.google.com/search?sxsrf=ALeKk03E4CmRwS6pFIx8aH4V2Xf820Wy4A%3A1604483303368&source=hp&ei=53iiX7jSE46lUvDMicAL&q=unimat+sl+lathe+drive+belts&oq=Unimat+Drive+belts&gs_lcp=CgZwc3ktYWIQARgCMgUIABDJAzIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjoHCCMQ6gIQJzoNCC4Qxw...
by grovenor-2685
Tue Nov 03, 2020 10:03 pm
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 375
Views: 109139

Re: The Burford Branch

Since you have enough current leaking though for you to see the LED lighting up, and it cannot be induced when using a battery there has to be a resistance path much lower than it should be. I would estimate somewhere between 4700 ohms and 20000 ohms which should be easily measurable with a multimet...
by grovenor-2685
Tue Nov 03, 2020 8:58 pm
Forum: Steam Locomotives
Topic: Frame Spacing
Replies: 26
Views: 1690

Re: Frame Spacing

In the beginning, which you will find in the P4 Manual and issues of Prototype See history section of this website) there were two recommended widths depending on side play wanted and I think the spacers were 15 mm and 15.5 mm with 0.5 mm thick frames. Since then kit designers have done their thing ...
by grovenor-2685
Mon Nov 02, 2020 3:22 pm
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 375
Views: 109139

Re: The Burford Branch

I agree with Tony on this. Its safe enough to just ignore it.
by grovenor-2685
Fri Oct 30, 2020 12:57 pm
Forum: Diesel and Electric Locomotives
Topic: Source for Branchlines Wheels
Replies: 10
Views: 1087

Re: Source for Branchlines Wheels

He does leaflets on his various ranges for a few pence so you could use one phone call to ask him to send you a set. In normal times we pick these up at exhibitions.
by grovenor-2685
Thu Oct 22, 2020 10:14 pm
Forum: Steam Locomotives
Topic: Brassmasters Rebuilt Royal Scot, 46109
Replies: 84
Views: 9044

Re: Brassmasters Rebuilt Royal Scot, 46109

but in practice they could only do that when the loco was working hard for a sustained period of time. When the loco was not working, live steam had to be used for both injectors.

Of course the loco does not need much water when its not working. :)
by grovenor-2685
Tue Oct 20, 2020 3:59 pm
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 375
Views: 109139

Re: The Burford Branch

By the way, just to show my complete ignorance of electricity, I had gained the impression that current flows from the negative terminal of the power supply to the positive terminal, but should that be the other way round? Maybe it doesn't matter so long as the Positive terminal is correctly identi...
by grovenor-2685
Tue Oct 20, 2020 2:56 pm
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 375
Views: 109139

Re: The Burford Branch

Could you temporarily substitute the H&M supply with a 9V PP3 battery and see if you get the same effect?
There is possibly some capacitative leakage through the switch wiring which should not occur with a smooth DC like from a battery.
by grovenor-2685
Mon Oct 19, 2020 9:34 pm
Forum: Layouts and Operations
Topic: The Burford Branch
Replies: 375
Views: 109139

Re: The Burford Branch

If you post thr circuit here then maybe we can see something.
by grovenor-2685
Sun Oct 11, 2020 9:20 pm
Forum: Track and Turnouts
Topic: Super elevation
Replies: 6
Views: 573

Re: Super elevation

Applying superelevation to plain double track would normally be by raising each outer rail. However where there has to be connection between the two tracks then all 4 rails need to be in the same plane which would use a huge amount of ballast if just done by packing in more ballast so usually the un...
by grovenor-2685
Sat Oct 10, 2020 7:36 pm
Forum: New Products
Topic: Who would want a form tool for re-profiling wheels?
Replies: 62
Views: 4530

Re: Who would want a form tool for re-profiling wheels?

Philip, If cutting the tread by running a tool along it then you are limited to turning the headstock to create a taper. But that is not the case with a form tool as you feed it in directly with the cross slide so can angle the tool post to cut the taper. But maybe not with the Teichmann tool that d...
by grovenor-2685
Sat Oct 10, 2020 7:31 pm
Forum: Guest Book
Topic: RE: Form tools
Replies: 13
Views: 1144

Re: RE: Form tools

Proto87stores wrote:Sorry,

I'm only allowed to post on guest book topics.

Andy

As for all non-members.
by grovenor-2685
Thu Oct 01, 2020 9:03 pm
Forum: New Products
Topic: Who would want a form tool for re-profiling wheels?
Replies: 62
Views: 4530

Re: Who would want a form tool for re-profiling wheels?

I'm interested. Side note, I saw an article somewhere. The author made a form tool by turning a disk, then cutting a notch in (with suitable rake). My point is, that tool was able to be resharpened many times. Not sure of the design being contemplated, and I'll buy it either way, just offering a co...
by grovenor-2685
Wed Sep 30, 2020 12:07 pm
Forum: Coaches and NPCS
Topic: Assistance with Bill Bedford 6-Wheel Coach Bogies Please
Replies: 7
Views: 774

Re: Assistance with Bill Bedford 6-Wheel Coach Bogies Please

The 3 finger bearing carriers usually clamp onto the wire pretty tight, are you sure its meant to be CSB and not 3 individual springs per side?
by grovenor-2685
Wed Sep 30, 2020 11:00 am
Forum: Coaches and NPCS
Topic: Assistance with Bill Bedford 6-Wheel Coach Bogies Please
Replies: 7
Views: 774

Re: Assistance with Bill Bedford 6-Wheel Coach Bogies Please

I haven't tried the 6 wheel bogies but generally CSBs need to be able to move as the suspension moves. soldering or glueing to the bearing carriers will interfere with the action. Usually there are end stops in the frame so the wire can't come out when all assembled, sometimes the wire needs a 90 de...
by grovenor-2685
Sat Sep 26, 2020 10:26 am
Forum: Layouts
Topic: Eridge
Replies: 14
Views: 630

Re: Eridge

I thought I heard 6 wires, which I would take to be 2 DCC and 4 CANBUS. Did I hear that you are developing a CANBUS system? I use the MERG CBUS which is a fully developed CANBUS system all available as kits.
by grovenor-2685
Wed Sep 16, 2020 12:24 pm
Forum: Jeremy Suter
Topic: scaleforum you tube test run
Replies: 29
Views: 1771

Re: scaleforum you tube test run

Original link asked me to register but after that seemed to want me to create a live stream.
Anyway, got it through Danny's link but it says that live chat is disabled.
by grovenor-2685
Mon Sep 14, 2020 2:26 pm
Forum: Wagons
Topic: Formation (and size) of a pick-up goods train
Replies: 20
Views: 973

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

I think it unlikely that the train would run with a fitted head, more likely the fitted wagons would run wirh brake pipes unconnected and the marshalling order just be based on the shunting requirements.
by grovenor-2685
Sat Sep 12, 2020 9:44 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction
Replies: 29
Views: 3939

Re: Masokits etched chairs

Thanks Keith for that useful tip. Regarding the subject of key direction in general, is it right that rails generally creep in the direction of travel, so keys are driven in against it? I.e. generally from the left. In the case of a single line or siding is there a custom/practice? See https://www....
by grovenor-2685
Fri Sep 11, 2020 2:43 pm
Forum: Starting in P4
Topic: First steps in track building and P4.
Replies: 34
Views: 2781

Re: First steps in track building and P4.

The code 75 is the height of the rail, not the head width. The width does vary between makes, largely dependent, I think on the age of the die. I suppose the height will similarly vary as the tool ages, but should not get anywhere near code 85. A prototype 95lb bull head rail when new is 145.26 mm h...
by grovenor-2685
Wed Sep 09, 2020 9:22 pm
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 1221
Views: 231301

Re: Making a Start - The Peak District Midland / Monsal Dale pre 1903

Anyway ... beyond some experimentation I need to progress the layout design such that I can get some baseboards up and running. Still keen to see what might be possible using Styrofoam ;) Rod Cameron has expanded on his Scalefour News article with a topic on RMweb, a search for Lewes should find it.
by grovenor-2685
Wed Sep 09, 2020 9:18 pm
Forum: Layouts and Operations
Topic: South Pelaw Junction
Replies: 129
Views: 33422

Re: South Pelaw Junction

I fitted my Masokits ones after laying the track, Wasn't particulary hard. I don't think fitting them to loose turnouts would be any easier.

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