Freerails Home 
Home Search search Menu menu Not logged in - Login | Register
Freerails > Model Railroad Forums > Scratch-Building & Kitbashing > 'Tor Corona' - Scratch Built RO-RO Vessel - In HO Scale

Freerails IS ACCEPTING new Members ... To join Freerails ... See how to Register as a Member in the 'Joining Freerails' Forum

'Tor Corona' - Scratch Built RO-RO Vessel - In HO Scale
 Moderated by: W C Greene Page:  First Page Previous Page  1  2  3  4  5  6  7  8  ...  Next Page Last Page  
New Topic Reply Printer Friendly
 Rating:  Rating
AuthorPost
 Posted: Sun Apr 8th, 2018 06:39 am
  PMQuoteReply
21st Post
Si.
Moderator


Joined: Thu Feb 23rd, 2012
Location: London
Posts: 4647
Status: 
Online
Hi Tony :wave:



Just looked at your drawing again ...

... & spotted something I missed at first.



The cables (dowels) on those bridges, are further apart from each other, on the 'deck' than up the 'tower'.

They 'splay-out' & the angle of each cable connected to the 'deck' in sequence, gets shallower.

Yours are all drawn 'straight' as far as I can tell.



I think you should re-plan these cable (dowel) angles, to look as the 1:1 bridges do.

Have another look at some of the photos.



The French bridge looks a bit more extreme in this regard, than the Mersey one.

But still, I think that getting the angles of the cables (dowels) to look right, is the characteristic of the real prototype.



Might be worth experimenting a bit, to find the right 'look'.



L:



Si.




____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
Back To Top

 Posted: Sun Apr 8th, 2018 07:55 am
  PMQuoteReply
22nd Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Early morning Si, :wave:, yeah I know what you are a talking about, had a look at a couple of pics of the Mersley bridge and the cable stays are closer together on the tower, I changed the drawing, looks a lot better, that means the cables are longer . I will join a couple of the shorted ones, worked out how to do it and to also to make it look good will put joiner tubing on all the cables to make them match, many thanks, still need four 2.4 meter lengths.

Like in the pic, I may add a sixth cable will see how the bridge will stand, you are right has to look right.

Wife is house cleaning today, don't think I will do any cutting today, get the off cuts measured ready  for tomorrow.

The good thing is with the bride design I be able to nail down the track and solder in the bus wires and not upset the cables being in the middle of the bridge,  9.5 mm do the job, sure be a stunning site, what colour to paint the bridge.

Another good thing to is I be able to run trains while adding the road deck and side frame working as I move along, might look a bit funny at fist with the big centre beam and dowels supporting the beam, rail deck is 9 inches wide and road deck nearly 2 feet wide.

Tony from cloudy down under, waiting to take a pic of the latest drawing when the shade goes over in under the pergola.



Attachment: 35408913400-fb9fecc797-z_orig.jpg (Downloaded 97 times)

Back To Top

 Posted: Sun Apr 8th, 2018 05:12 pm
  PMQuoteReply
23rd Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Hi Si, I went outside and redrew the cable stay closer together , as you say got to look right, now it does.

Tony from down under

Attachment: IMG_1021.jpg (Downloaded 63 times)

Back To Top

 Posted: Sun Apr 8th, 2018 05:17 pm
  PMQuoteReply
24th Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Back into the ship I have finely completed the frame work between the main deck and waterline base, next step is the mark and cut out he main deck floor, she is back on track.

The main deck floors is 2 mm thick, got plenty of 1 mm cardboard, then I will finish marking and cutting the water line base, two more to cut out there.

Tony from down under. 

Attachment: IMG_1023.jpg (Downloaded 64 times)

Back To Top

 Posted: Sun Apr 8th, 2018 09:39 pm
  PMQuoteReply
25th Post
Si.
Moderator


Joined: Thu Feb 23rd, 2012
Location: London
Posts: 4647
Status: 
Online




Hi Tony :wave:



I'm kinda still not convinced totally, that the angles on the new drawing are 'looking' quite it.

I can't quite see the drawing totally clearly though.

I'm sure there are many variations on the cable angles as well.

But ...

... on most I've looked at, they are very similar.



I don't know if I can explain what I mean without a drawing. ???

But ...

... at the tower, the 1st angle looks very like a 30deg/60deg geometry-square, standing upright.

... at the deck, the last angle looks very like a 30deg/60deg geometry-square, laying down.

Not exactly, but more or less so.


L:


Perhaps you need to ignore the double-decker spacing-pieces you have marked in already ...

... until you have marked in how many cables (dowels) you're having & their final angles.

Seems to me that the cable angles are more important for the 'look', than the double-deck spacer positions.


L:


Si.






Last edited on Sun Apr 8th, 2018 09:43 pm by Si.



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
Back To Top

 Posted: Mon Apr 9th, 2018 03:28 pm
  PMQuoteReply
26th Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Hi Si, I had a look on Google Earth and measured one of the cable stay spans measuring in HO scale 3,3 metres that's if I measured right and  sadly on Wikipedia doesn't have measurements of the main span full length is 2.2 K's long 25 meters in HO scale.

The section I am have done the drawing on is 7 feet, and counted 24 cable stays on the real bridge , never fit that many in 7 feet, and very costly indeed as it is with five it is costing $20 AU x 4 ouch.

Today I cut with my battery saw sides for the last two corner modules and the centre beams for the bridge, going t a timber mob on Friday and buy an off cut 12 mm ply long enough for the rail deck so I can start work on building the bridge .

With speeding up the bridge construction, I will add in a third middle piel to get the trains up and running faster, finishing the cable stay bridge after the big event, will buy the full sheet of ply for the second last corner module and only one 6 foot gap to bridge completing all of the rail decking, hardest job in levelling and the grade  on the spiral and ramp.

Tony from down under


Back To Top

 Posted: Sun Apr 15th, 2018 05:47 am
  PMQuoteReply
27th Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Sadly I wont be modeling Mersley cable stay bridge, it is to do with the approach each end of the bridge and just wont look right, I am going back to an old design I drew up a while back, modern concrete arch above the road deck, still double deck, a bit like the Sydney Harbour bridge.

It was raining most of the morning yesterday, so I started redrawing the new bridge and will use the arch as a paton for marking out the sections that will make up the arch, have made a start, every spare moment I will mark a piece of ply to cut , the arch be 24 mm thick and the dowel cable in between the two pieces.

This will work out better actually, I want to model para gliders getting ready to jump off the top of the arch, Noch have them and will have steps and platform at the top something different, possible Si's famous pic a bloke jumping of the French cable stay bridge.:):moose:

The first approach to the bridge, there be a tunnel on the curve and a hill looking into a castle for that scene, other end the track head off to the right and road straight ahead.

I bought that sheet of ply and have enough ply fro the bridge rail deck now, road deck come later , and also the top for the back door corner module.

Tony from down under.


Attachment: IMG_1088.jpg (Downloaded 46 times)

Back To Top

 Posted: Sun Apr 15th, 2018 05:49 am
  PMQuoteReply
28th Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Here is a pic of another angle of the bridge arch, height 3 feet off the road deck.
Tony

Attachment: IMG_1089.jpg (Downloaded 45 times)

Back To Top

 Posted: Mon Apr 23rd, 2018 01:41 am
  PMQuoteReply
29th Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
Bow keel is nearly finished, all that needing is two more waterline bottom sheets and glue the second mian deck sheet, moving into the bow bulkheads and raised deck, should of gone this way i the first place.

Top pic I cut off 3 inches of the first sheet so when the next section meets up an glued in place I can slide in a strip to strengthen the keel, will need to on top of the two 18 mm square dowels to sliding into the kee channels By the time I have finished the hull construction be some weight there on top of he trucks even though they don't weigh much.





Next pic the sides closed in between the main and water line bottom, still need to round the sides off, going  be tricky as even closing those sides in was hard, had t cut them into strips.

I won't close off the bow sides till I cut the the two bottom sheets, I reckon would of been hard to build the ship in one full hull, second build be easier 



The new bridge design is slow going, I will have to redraw the full size plan as  storm washed half off, being  concentrating on the layout, finishing building, painting and laying track and points down ready to solder the feeler wires to the track.

I hope to have at least the hull of the ship finished and some of the superstructure done when the layout is up and running, wow .L:

Tony from sunny down under, cooling down 16 degrees this morning.

Back To Top

 Posted: Sun Apr 29th, 2018 12:45 pm
  PMQuoteReply
30th Post
Tony M
Registered


Joined: Thu Mar 13th, 2014
Location: Ipswich, Queensland, Australia
Posts: 618
Status: 
Offline
I redew the full scale drawing of Cam double deck bridge on the pavers in felt pen this time, will clean the drawing off once the bridges arch is built here is the new drawing mainly the arch.

There is a black mark on the edge of the concrete, will have to put some plus on the pic to see it, is where the top of the arch starts.

I found where I can but A/3 size tracing paper so I can track each section of the arch onto the ply board, be too hard to hold the ply in place when marking the arch, this be easier.




The next pic a cut out drawing the two decks and arch, will only be a four lane bridge, 




I have enough ply for the whole bridge, going to the timber mob on Tuesday on the way home from a hospital appointment to buy soe off cut ply thought the other piece of ply I had was 18 inches wide  not. One more  module to build and that's it for the layout completing all the modules and decking for the layout not fa away now once I get going on the spiral levelling 

ON a high, Tony from down under 

Back To Top


 Current time is 06:26 am
Page:  First Page Previous Page  1  2  3  4  5  6  7  8  ...  Next Page Last Page  

Freerails > Model Railroad Forums > Scratch-Building & Kitbashing > 'Tor Corona' - Scratch Built RO-RO Vessel - In HO Scale
Top



UltraBB 1.172 Copyright © 2007-2016 Data 1 Systems