Search found 419 matches

by Tony Wilkins
Mon Jan 18, 2021 9:20 am
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Well that's all sorted and what a wonderful array of faults they were. The non functioning double header circuit turned out to be caused by a dry solder joint in the control panel meaning there was no return path for the relay and was nothing to do with the PCB I corrected earlier. Fortunately for s...
by Tony Wilkins
Sat Jan 16, 2021 1:45 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

FURTHER ADVENTURES WITH WIRING. Well so much for the theory. Electricity knows better. On reassembling all the baseboards, which I have to, to be able to test all the control panel, 3 faults still existed. One of which required dismantling the first three baseboards to get at. The cause was a point ...
by Tony Wilkins
Sat Jan 16, 2021 12:11 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Hi Simon. Yes, have used that trick in the past. A 10 amp power supply can also be quiet effective at blowing shorts but not with thin tracks around or these could vaporize as well. We tried both on that short to no avail.

Regards
Tony.
by Tony Wilkins
Thu Jan 14, 2021 11:26 am
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Hi Terry. The worst example I have seen of this sort of thing occurred during the early days in my design career. We had a small batch of circuit boards etched but when populated with components and tested, one exhibited a most peculiar fault. There was a short between two adjacent tracks but all at...
by Tony Wilkins
Thu Jan 14, 2021 9:17 am
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Since the last post, I have been progressively working my way through the outstanding faults and there were rather more than I had hoped for. I also found one that was totally unexpected whilst testing the two roads with a double header isolating circuit. Road 8 worked fine, but on selecting road 6 ...
by Tony Wilkins
Sun Jan 10, 2021 10:37 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Just to update the previous post. I have now discovered one of the reasons why I was having so much trouble getting this display board to work correctly. On checking my original logic chart, I have made error in the logic list, which explains a lot. I have now corrected this situation and altered th...
by Tony Wilkins
Sun Jan 10, 2021 1:37 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Hi Terry and Andrew. Thanks for the compliments. I do perhaps have an unfair advantage in that I worked in the electronics game for a large part of my career, but my entry into this was not what would today be considered conventional. I developed my knowledge largely as a hobby and interest. In my f...
by Tony Wilkins
Fri Jan 08, 2021 6:06 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

With Christmas and New year now behind us, time for some more progress with the layout and the control panel in particular. There were still some small display PCBs to make such as these. DSCF1142.jpg The odd shape of the main one is dictated by where it has to go. DSCF1143.jpg The small PCB fits he...
by Tony Wilkins
Sun Dec 27, 2020 11:56 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Bullhead rail.

hi Tony How have you dealt with the tiebars for the double slip? Hi Paul. The operation of double slips on my current project Brimsdown was covered starting here https://www.scalefour.org/forum/viewtopic.php?f=9&t=5707&start=350#p76565 , but as these are in the storage sidings (fiddle yard)...
by Tony Wilkins
Sat Dec 26, 2020 5:19 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Bullhead rail.

hi Tony How have you dealt with the tiebars for the double slip? Hi Paul. The operation of double slips on my current project Brimsdown was covered starting here https://www.scalefour.org/forum/viewtopic.php?f=9&t=5707&start=350#p76565 , but as these are in the storage sidings (fiddle yard)...
by Tony Wilkins
Tue Dec 22, 2020 10:02 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

Hi Dave. I am sure you are correct that environmental factors play a part. Thermal cycling being the main one, the greater the temperature range obviously the greater the effect, but humidity can also play a part with damp conditions accelerating any corrosion effects and in severe cases even allowi...
by Tony Wilkins
Tue Dec 22, 2020 2:11 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

For droppers I have for years used 22 gauge tinned copper wire soldered to the underside of the rail two per length and not always at opposite ends. The top 3mm or so is bent at right angles to give a decent bond length with the rail and the hole through the baseboard is 1 mm to 1/16th" to give...
by Tony Wilkins
Mon Dec 21, 2020 12:32 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

And Tony, everything you've said about Vees, wing rails and switch rails is true for all methods of construction and invaluable. It's only how you fix these to the timbers that's a bit different! As a matter of interest, what do you do about chairs on your ply and rivet track? DT Hi David. There is...
by Tony Wilkins
Sun Dec 20, 2020 4:20 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

As one of the main protagonists of the ply and rivet track construction system, I would be delighted to see a ready to run range of P4 turnouts become available as nothing would encourage more modellers to have a go. However the range by definition is always going to be limited compared even with to...
by Tony Wilkins
Fri Dec 18, 2020 5:57 pm
Forum: Starting in P4
Topic: Finley 28xx
Replies: 5
Views: 694

Re: Finney 28xx

Hi.
It may not be the best time to start thinking about how to fit pickups when a loco is nearly finished as these things are sometimes easier to incorporate if designed in at the chassis stage. However hopefully someone who has actually built one will have a solution.
Regards
Tony W.
by Tony Wilkins
Fri Dec 18, 2020 1:23 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 460
Views: 97564

Re: Brimsdown-The last grand project.

Not a lot of progress to report since the last post I'm afraid, things like Christmas (such as we can have this year) keep getting in the way. Anyway, Shortly after my last post I realised that I had missed two switches off, not only the front panel, but the schematic diagram as well. These are for ...
by Tony Wilkins
Wed Dec 16, 2020 8:37 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

For a long time I've felt that securing Jackson couplings to the opposite end of the vehicle can contribute to problems at crossings and elsewhere. DaveB Hi Dave. I have often thought the same in spite of using them that way and for that reason try to attach the wire on the center line of the wagon...
by Tony Wilkins
Wed Dec 16, 2020 2:44 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

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 th...
by Tony Wilkins
Tue Dec 15, 2020 10:31 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 63
Views: 7604

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Point rails for obtuse crossings should never get that thin. 0.1mm or 4 thou is thin enough for me rather than the normal 0.25mm . Martin. Thanks for republishing this information. I have taken the liberty of copying the data into my track construction thread (with acknowledgements) so it is availa...
by Tony Wilkins
Tue Dec 15, 2020 1:56 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

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 Tony Wilkins
Mon Dec 14, 2020 9:17 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

Hi Julian.
I will come back to you on this if I may as there are several questions here and I need to think about some of them.
Regards
Tony.
by Tony Wilkins
Thu Dec 10, 2020 5:17 pm
Forum: Track and Turnouts
Topic: New range of chaired bullhead turnout kits in 00 and EM
Replies: 17
Views: 1938

Re: New range of chaired bullhead turnout kits in 00 and EM

Tony, When did you last buy timbers and rivets? I costed a ply and rivet turnout at £5 (excluding cosmetic chairs) about 10 years ago and rail, timbers and rivets have gone up in price substantially since then. :) Hi Keith. You could well have a point as it was at least 5 years ago. Rivets have not...
by Tony Wilkins
Thu Dec 10, 2020 9:24 am
Forum: Track and Turnouts
Topic: New range of chaired bullhead turnout kits in 00 and EM
Replies: 17
Views: 1938

Re: New range of chaired bullhead turnout kits in 00 and EM

I always reckon on £4 - £5 for the basic components for a typical Ply and Rivet Turnout these days. Still considerably cheaper than any available kit.
So if you muck it up first off, you haven't really lost much and hopefully gained experience in the process.
Regards
Tony.
by Tony Wilkins
Wed Dec 09, 2020 10:41 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 45109

Re: Turnout construction - Question here please.

Just bumping this thread in case anyone is having difficulty finding it.
Tony.
by Tony Wilkins
Sat Dec 05, 2020 4:13 pm
Forum: Track and Turnouts
Topic: Masokits etched chairs turnout construction for Kyle of Lochalsh
Replies: 63
Views: 7604

Re: Masokits etched chairs turnout construction for Kyle of Lochalsh

Hi Julian. I can add little to Martin's comments other than to state that the slip roads are not where the problems lie. My own experience with Steel and n/s rail is that steel rail has less strength than n/s at really thin sections. This however occurs at the tip of switch blades. Point rails for o...

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