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Granby Junction 1948 N. Wales - Members Personal Layouts. - Model Railway Layouts. - Your Model Railway Club
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 Posted: Thu May 3rd, 2018 05:17 am
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John Dew
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My new year resolution of "an update a week" has sure taken a beating.

The advent of some sustained sunshine hasn't helped matters but the primary culprit is my elderly laptop. I use it for all my photo re sizing/editing and sadly it has been getting slower and slower and finally had to go into intensive care for a fortnight. It has finally emerged with a new hard drive but still has an irritating habit of randomly delaying a key stroke actually appearing on the screen........very frustrating.

Fortunately you haven't missed much.

I left you with this 



Buildings safely stored, most of the approach tracks ripped out already for the removal of the Heljan turntable.

The minimum diameter for the Heljan was 10mm more than that required for the Fleischmann so I mistakenly assumed that it would be a straight swap! 

Not so I am afraid
 



I wasn't looking forward to this one bit but fortunately all went well with minimal collateral damage and the Fleischmann was fitted into the enlarged aperture with no additional fettling









Next step was to wire up the TT for DCC and relay the approach roads.........more on this next week

Regards from a sunny Vancouver 






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Granby III
Lenz DCC ,RR&Co Gold V9.0 A3 Windows 10
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 Posted: Thu May 3rd, 2018 07:09 am
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Phil.c
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Coming along nicely !



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 Posted: Thu May 3rd, 2018 07:27 am
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Ed
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John Dew wrote:
The minimum diameter for the Heljan was 10mm more than that required for the Fleischmann so I mistakenly assumed that it would be a straight swap! 

Not so I am afraid
 

Somebody or other's law, John :mutley


Smart looking turntable though :thumbs


Ed



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 Posted: Thu May 3rd, 2018 10:14 am
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gdaysydney
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Crikey John - it only seems like yesterday when you bought the Heljan.
I will be watching how the Fleischmann works with TC - I'm guessing it will work well.



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 Posted: Thu May 3rd, 2018 04:43 pm
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John Dew
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Phil.c wrote: Coming along nicely !




  :hmm    I guess that was with tongue firmly in cheek!    :mutley



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 Posted: Thu May 3rd, 2018 04:49 pm
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John Dew
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Ed wrote: John Dew wrote:
The minimum diameter for the Heljan was 10mm more than that required for the Fleischmann so I mistakenly assumed that it would be a straight swap! 

Not so I am afraid
 

Somebody or other's law, John :mutley


Smart looking turntable though :thumbs


Ed


Hi Ed

Granbys law........I am thinking of writing a book about it :lol:

I have to get rid of the HO scale Bridge house etc.........I have seen Fleischmann TTs anglicised (?) with Dapol, ex Airfix, TT girder sides ......so eventually I may try something like that. Mechanically though I am very impressed  :thumbs




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 Posted: Thu May 3rd, 2018 05:00 pm
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John Dew
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gdaysydney wrote: Crikey John - it only seems like yesterday when you bought the Heljan.
I will be watching how the Fleischmann works with TC - I'm guessing it will work well.

.....
I think its coming on for 5 years now Dave........time flies when you are having fun........although with the Heljan it wasn't much fun! As I said earlier some aspects of the Heljan are brilliant but its inconsistent relationship with TC......particularly remembering which way the loco was facing......was immensely frustrating

I remember Pete (Wogga) went through the same problems with a Heljan and TC and very sensibly cut his losses after a couple of weeks.....traded in the Heljan for a Fleischmann.......I wish I had done the same.....wasted years trying to get it to work

Anyway after 5 years  :roll:    the deed is finally done and so far its looking very promising........

Cheers



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 Posted: Sat May 12th, 2018 04:07 am
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John Dew
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Time to lay some track



The entire perimeter of the turntable is made up of 48 removeable, interchangeable segments




There are three different types

 Left:        Connector to an exit track ......its powered from the bridge, hence the IRJs I have fitted on the track end.
                                                     

  Centre:  Passive track............................powered but no track connection

  Right:     Blank


Each track connector must have a track connector or passive track segment immediately opposite

In theory you could run 48 tracks off the turntable. In practice it only comes with segments for six If you want more tracks you need to buy more segments. Fortunately, as you can see, my old  second hand analog Fleischman has compatible segments

From the rear the segments look identical.






In the centre a surprisingly strong plastic spring which clips into the turntable body





To remove a segment you press on the centre spring and wiggle it out. Its much harder than it looks although easir once the first one is removed





In contrast the Heljan perimeter is continuous. The Code 83 exit tracks have the rail ends filed down and are then glued direct to the perimeter..........you can see the adhesive remarks below.




The Heljan turntable can accommodate up to 56 exit tracks........perhaps because of the rigid geometry imposed by the segments I found it easier to lay more track with the Fleischmann. On the Heljan I had 12 tracks (10 on the sheds side and an entry and exit track opposite) while on the new Fleischmann I have been able to install  16 (14 : 2)








Note the cunning land reclamation at the back........the exit angles from the two TTs are different.......I am hoping the additional length will not only allow more locos but also allow me to set back the shed buildings to align with the tracks














 
Regular followers will no doubt be disappointed that the attractive views from the window of a rusted wheelbarrow are no longer available.

We had to put the silver foil up because a neighbour chopped a couple of conifers down.....the resultant extra sunlight was starting to make my Hornby GWR green locos look even less realistic!

Please dont ask why I didnt have the forethought to install venetian blinds 10 years ago!

Regards from a very sunny Vancouver




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 Posted: Sat May 12th, 2018 06:14 am
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gdaysydney
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The new turntable looks really impressive in situ and looks like being a major attraction for Granby in the futureGreat work
Best wishes



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 Posted: Wed May 16th, 2018 03:22 pm
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Petermac
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As ever John, I'm mightily impressed with what you're doing although it must have been heartrending to demolish that fabulous shed area - I well remember drooling over some of the wonderful shots taken there.

I'm also delighted to see that all the hard work with the loco shed and associated buildings is not going to waste and that it will all be re-used.  Looking forward to the new batch of photos.

Your carriage movement video is really stunning to watch - so clean, smooth and functional.  It's even more amazing when you say it was all done with one touch of a button.  It almost persuaded me to delve deeper into the dark art of RR & Co for Maxmill 2 - if I ever manage to find somewhere to house it !!!  I say "almost" because, as a total dinosaur, I could imagine me still trying to programme it all when they finally nail the lid down.  It must have taken you an age.  I might suggest to Liz that I have an Occupation Detector as a headstone ................ :roll:



 



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 Posted: Fri May 18th, 2018 01:31 am
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John Dew
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gdaysydney wrote: The new turntable looks really impressive in situ and looks like being a major attraction for Granby in the futureGreat work
Best wishes


Thanks Dave......There is some work to be done cosmetically to make it less European and even more work synchronising it with RR&Co, but it is a very impressive unit.

Best wishes.

John



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 Posted: Fri May 18th, 2018 01:49 am
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John Dew
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Petermac wrote: As ever John, I'm mightily impressed with what you're doing although it must have been heartrending to demolish that fabulous shed area - I well remember drooling over some of the wonderful shots taken there.

I'm also delighted to see that all the hard work with the loco shed and associated buildings is not going to waste and that it will all be re-used.  Looking forward to the new batch of photos.

Your carriage movement video is really stunning to watch - so clean, smooth and functional.  It's even more amazing when you say it was all done with one touch of a button.  It almost persuaded me to delve deeper into the dark art of RR & Co for Maxmill 2 - if I ever manage to find somewhere to house it !!!  I say "almost" because, as a total dinosaur, I could imagine me still trying to programme it all when they finally nail the lid down.  It must have taken you an age.  I might suggest to Liz that I have an Occupation Detector as a headstone ................ :roll:
 

Hi Peter

It was pretty depressing I must admit.....although the worst part was agonising about the actual decision to bin the Heljan and buy a brand new Fleischmann.......in the end Doreen, not for the first time, made up my mind for me........"for pitys sake stop whining and buy the damn thing" or words to that effect :roll:

Its a hard slog doing all the re wiring and I aint getting any younger so crouching under the baseboard peering through bifocals is not a ton of fun   :cry:  but I am slowly getting there

I am glad you like the video......hopefully you recognised that one of the stars was the Lanky tank that you so generously supplied complete with a gold Lenz chip......super loco.

I guess all your time is still occupied with settling into your new home. Are you any nearer finding space for Maxmill II?  I suppose a temporary shunting plank isnt an option?

Best wishes to you and Liz

John



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 Posted: Fri May 18th, 2018 05:37 am
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John Dew
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Steady, albeit boring, progress.

The 16 exit tracks are now live and running. Many of the droppers were already in place........well at least connected to the DCC bus.The track angles are different though so they were rarely in the right place on the baseboard. This involved drilling new holes and a lot of crouching under the baseboard trying to make sure the right wires were re connected. .........not fun and definitely not recommended for a six foot, unfit OAP.

The 8 tracks leading into the engine sheds still have to each be divided into two blocks and the approach tracks still need some wiring but the worst part is over.

Time to hook up the Turntable.

The TT is supplied with an Analogue or DC controller which, after installing a separate 14v supply,  is essentially Plug and Play 



Its a well designed piece of equipment which is easy to operate.

However I will be operating the TT with RR&Co so a DCC decoder is required. I decided to go with Fleischmann's Turn Control unit. There are less expensive options available but after all the fret I had with Heljan I wanted to be totally confident with the interface.

The Heljan controller was mounted, for wiring convenience, on the other side of the duck under. Not a good idea...operationally it proved highly inconvenient. This time I mounted it as close as I could to the TT but on the operating side of the duck under 




Ignore the unit with the blue lights.....thats a decoder for two Cobalt SS surface mounted point motors on the new approach tracks.......more on these later......suffice to say they are effective but very fiddly hence having the decoder readily available

As is well known, DCC layouts only require two wires.......the two for Granby can be seen under the canal!



Heres a close up of the Turn Control Unit




Each track has to be set up individually ...........but it is far easier than with Heljan where you had to line up each track by eye.......here you just turn the red knob till the bridge is in the required  position and select a number.
 
RR&Co is a little more demanding and you have to select the tracks clockwise from the 9 o clock position numbering them sequentially

There are 14 tracks on the shed side facing 2 tracks on the line side but you also have to set up the 12 passive tracks making 28 tracks in all. Hence 14 on each side.  Polarity changes at 12 and 6 oclock  ......very simple menu option.




To select a track.....dial the number with the red knob then press it.

So far so good. I am very happy with the precision and accurate indexing of the bridge. A supposed feature is that only one of the segments leading on and off the bridge are powered. they can be manually switched (bottom green button). Not sure how this will work in automatic mode although as a last resort it can, I believe, be by-passed

Next stage is to set all this up in Train Controller.

I am afraid this will be of little interest to most but may be of use to anyone contemplating installing a turntable in the future. I will try and shoot some locos next week

Meantime in other news

Last weeks attempt to prevent the sun getting into the railway room was too effective



It was like working in a dungeon and was quickly abandoned


Fortunately we found some tinted film


+
-
Much better........just have to buy another roll for the last window




Regards from Vancouver




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 Posted: Fri May 18th, 2018 05:51 am
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gdaysydney
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HI John,

With Peter Waugh no longer watching I suspect that you are the only one with a turntable and RR&Co but if you have the time I would be interested in how much detail is not in the TC manual.
Did you install the window tinting yourself? I found it hard to get it smooth with no air bubbles!!

PS remember that in daylight you cant see inside but and night time its the other way around - so make sure you a decent when operating the layout at night !! :) :shock: :shock:
:mutley



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