Search found 942 matches

by Julian Roberts
Fri Jan 08, 2021 2:17 pm
Forum: Track and Turnouts
Topic: 3-foot radius curves in P4
Replies: 26
Views: 1868

Re: 3-foot radius curves in P4

Hi Andrew In case this helps - I couldn't find this till now. This is from https://www.scalefour.org/forum/viewtopic.php?t=2021&start=25 Here's some info which I have posted many times on other forums, for 00 modellers new to trackbuilding, but it applies equally for P4. http://85a.co.uk/forum/g...
by Julian Roberts
Mon Jan 04, 2021 12:55 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

I wonder how many other things I don't understand. It might be quite a lot Julian :mrgreen: but in reality probably not a lot. :D Well I keep thinking I know things, after all my irritating questions on the Forum I've really learned such a lot from you folks, all of it freely and generously given -...
by Julian Roberts
Sun Jan 03, 2021 7:53 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Thanks chaps for correcting me. I wonder how many other things I don't understand. I had another look at the photo on Tony's thread and I see that it is like this, which I think is what you are saying is how I should measure it. Tony Wilkins turnout construction thread.PNG However, I do understand t...
by Julian Roberts
Sun Jan 03, 2021 9:11 am
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Diamond Round 2. Straight this time. I've got the benefit of Tony Wilkins' description of how to do it this time. Which presented me with a dilemma pretty well at step 1 after making the Vs. He says make the two stock rails knuckles opposite each other at the centre of the diamond to start with, whi...
by Julian Roberts
Fri Jan 01, 2021 9:29 pm
Forum: Track and Turnouts
Topic: 3-foot radius curves in P4
Replies: 26
Views: 1868

Re: 3-foot radius curves in P4

Hi I think this is an overview of the subject - https://85a.co.uk/forum/view_topic.php?id=3809&forum_id=1 - scroll down to my post on 7th November. Basically the triangular tool gives you all you need, except you can't use it easily in parts of a turnout. The prototype maximum was 3/4", in ...
by Julian Roberts
Mon Dec 28, 2020 6:55 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Although the irregular curved single slip basic diamond works perfectly for all my stock I reluctantly decided to redesign it as a regular straight slip. The other discussions that led me towards this point are here - https://85a.co.uk/forum/view_topic.php?id=3831&forum_id=6&jump_to=31658#p3...
by Julian Roberts
Tue Dec 22, 2020 12:58 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

Very many thanks Martin and Keith for your replies, for correcting and amply clarifying that misunderstanding of mine. Regarding the discussion about kits etc, it seems to me the joy of P4 is not being locked into a Peco geometry mindset, and that it is no more difficult to make pointwork on a curve...
by Julian Roberts
Mon Dec 21, 2020 3:34 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

Hi Martin Thanks for posting the drawing and for your earlier reply. Regarding the point rail railhead, sorry, to ask this but I need help from engineer folks seeing and understanding what the drawing is saying. It looks to me as though the rail is bent at the distance x according to the angle and t...
by Julian Roberts
Sun Dec 20, 2020 6:13 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

Regarding expansion problems I was told to make a gap big enough to allow for movement every 250mm, or two 60ft track panels which equals 240mm. Turnouts I have been making with Masokits chairs (see my thread https://www.scalefour.org/forum/viewtopic.php?f=5&t=7028)are this kind of length, so wi...
by Julian Roberts
Sat Dec 19, 2020 11:57 am
Forum: Starting in P4
Topic: Finley 28xx
Replies: 5
Views: 681

Re: Finley 28xx

Hi Yes it's better to think about it before making the chassis. Now it depends how fussy you want to be. I bought this already completed loco which had tender wiper pickups, and the loco couldn't pull the tender let alone a train, so I modified it to have loco pickups. Can you see them? DSC02299.JPG...
by Julian Roberts
Thu Dec 17, 2020 12:50 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

I haven't had those wagon problems nor any other on my very short test trains (just one buffer in contact) on my trial curved diamond even with a very heavy load - does the length of a train make a difference I wonder? Having been thinking about obtuse crossings the last three weeks, I've just one m...
by Julian Roberts
Wed Dec 16, 2020 1:18 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

Hi Tony Thank you and Martin for all this helpful material. But is this a real problem that needs addressing? Diamonds have not been problematic in my experience. A friend who has exhibited his P4 layout many times didn't know his wagons could go the wrong way on his 1 in 8 slip till I asked him the...
by Julian Roberts
Tue Dec 15, 2020 4:28 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh - curved irregular slip

6 wheel parcels van, no problems on this curved slip. woMBexGH1ZY 3 wagons propel Crab loco and tender (gearbox disconnected) which weighs a good 7 or 800g. My hand causes the only derailment near the end, steering the wagon the wrong road. Edit - The curve is such that only 2 buffers are in contact...
by Julian Roberts
Tue Dec 15, 2020 11:31 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

Hi Tony
No problem, thanks for giving some time to consider. I don't subscribe to the modern expectation that we give instant responses in this age of electronic communications ;)
by Julian Roberts
Sun Dec 13, 2020 9:38 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 44459

Re: Turnout construction - Question here please.

Hi Tony Many thanks for the latest instalment on diamonds and slips. One thing I didn't understand is how to use a check rail gauge when adjusting the fit of the first point rail. Adjusting the fit of the first point rail using the wrong gauge. The check rail gauge should really be used but this is ...
by Julian Roberts
Sat Dec 12, 2020 5:10 pm
Forum: Coaches and NPCS
Topic: Masokits
Replies: 4
Views: 941

Re: Masokits

I bought some etches from Mike last month. Time from cheque in the post to package through my door was three and a half weeks. That was just an England/Scotland transaction! I assume you know he is very particular about contact and payment. Hope you get what you're needing but it won't be by Christm...
by Julian Roberts
Sat Dec 05, 2020 7:21 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Hi Martin and Tony Thank you for answering my questions, and giving me and anyone reading this such helpful information. I'm not absolutely sure if this below is all the information required to say what the radii of the crossing is. No doubt designing it on the 1905 25 inch OS map isn't a foolproof ...
by Julian Roberts
Sat Dec 05, 2020 9:55 am
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

I suggest you bend the check rail very sharply, Julian, despite knowing the prototype bend radius. This is a difficult area and the test is to see if a wagon can be pushed down the wrong way. I usually cheat with the filed bits too, making them just a little longer and sharper than the prototype bl...
by Julian Roberts
Thu Dec 03, 2020 1:57 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

That's great Will. Thank you I now understand. Interesting that my previous blasé attitude that less than 17.67 is OK seems to be an advantage here. I was not expecting that - rather, I expected the opposite. Lots to think about here and try out. Interesting you don't mention the curve of the stockr...
by Julian Roberts
Thu Dec 03, 2020 12:23 pm
Forum: Track and Turnouts
Topic: Single slip prototype photos?
Replies: 15
Views: 973

Re: Single slip prototype photos?

Really useful pic there Tony, thanks for posting. Maybe should be copied into the P4 resources photo section?
by Julian Roberts
Thu Dec 03, 2020 7:55 am
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Hi Tony and Keith Thank you for your helpful comments. Yes the timbers are done by Templot and look to be at right angles at the centre of the obtuse crossing. So the unchecked distance is say 4mm even in exact scale or a foot in reality! So running depends on perfect alignment. Yes I had another 2 ...
by Julian Roberts
Wed Dec 02, 2020 9:32 pm
Forum: Track and Turnouts
Topic: Single slip prototype photos?
Replies: 15
Views: 973

Re: Single slip prototype photos?

there looks to be a bit of flange wear on the nose. That answers my question thanks Keith Hi Andrew - Just filed up 4th blade. Don't know if this is the pukka way but I might as well try to help! 20201202_204121.jpg Bend rail to angle required. This will be the running side of the rail. File down t...
by Julian Roberts
Wed Dec 02, 2020 5:53 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Will L wrote: and does demand that the match between the BtoB and the dimension across point of the central check rail pair is as close as possible.


Will thanks for your advice - I'm not understanding this sentence, sorry to be thick; any chance you could sketch what you mean?
by Julian Roberts
Wed Dec 02, 2020 2:57 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 62
Views: 7243

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Hi Will thanks yes that was what I was referring to but I haven't laboured the point about where I was following the recommended order of service and where I was departing from it. In fact I think now I should have started with the obtuse crossing as being all curved it hasn't got to line up with th...
by Julian Roberts
Wed Dec 02, 2020 8:33 am
Forum: Track and Turnouts
Topic: Single slip prototype photos?
Replies: 15
Views: 973

Re: Single slip prototype photos?

I think there's a curve here, Keith?

Actually I think there's a curve on the running side of the rail too. Just the problem I had trying to file the model rail. Should the nose be slightly rounded as well as blunted on the model?

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