Another bridge too far

Thanks guys

Printer is going like a trojan

6 done so far number 7 on its way,

should allow me to start number 8 before going to bed, getting older and having a weak bladder has it's advantages, up at 4 this morning, so started another going, it was finished by 7.20 so I started another before going to work

Paul

 

then a lot of rusty dirt

Looking for a suitable glue for PLA, seemingly Chloroform works well - 3 hours to print, three days to to glue together and wake up to see the results. I'll try MEK first

Paul

 

Thanks Gary, it also ties in with the older photo, however the link also shows a type 2 on a freight in 1962 and the bridge looks blackish, probably too dark for a really dirty battleship grey.

Probably a good excuse for a compromise solution - its currently black plastic, temporarily fix in place and take a picture, then paint with grey primer, and take another picture to see which looks the better option.
As I don't have any Highland stock - the nearest I will have is a Lima 4F, and will probably be running a Terrier (well at least it was designed and built by an ex HR man) I suppose rule 1 will apply

Found a solvent that works with PLA FloPlast Solvent Cement I got mine from B&Q when I replaced a down pipe and sink waste pipe. Better than Chloroform - I think

Paul

 

Just a wee test / play

The bridge sides are resting on top of the bridge, whereas in reality they will be secured to the sides approx 15mm lower.

Now the next decision 7 panels - spans most of the board, leaving approx 200mm for the Turrets and transition from the rock cutting

Or 6 panels leaving approx 350mm for the Turrets and transition from the rock cutting, allowing room to model the stone embankments as per Dalguise

Paul

 

Decided to go for the 6 panels, this will allow a bit of a run in to the bridge.

Making up ends for the sides.



And also created some chamferd caps as well.
Printer has been started up again - well it got most of today off

Just got the last two panels to glue up for the second side, then design up the spacers across the tops.

Paul

 

Hi Gary, that one is easy - there will be a traverser between the two layouts - so thats three in total, and a total length of 31.5ft - if Toto's tape measure is correct.

This will allow traffic to flow more regularly across the bridge, while shunting takes place on Luib Bridge.

Just means I have two traversers to build - no pressure then.

Printed out the ends for the bridge

Paul

 

A bit more progress

Clamps made up to attach the bridge sides

These fit over lower section of the bridge side

Also designed the cross brace for the tops



This is upside down as the end T section is glued to the back of the upper channel.

Now just need to make up fancier end brackets

Paul

 

Got adventurous this afternoon

First light undercoat applied, then decided to mount the sides in place.

Baseboards needed to be parted to gain access to the rear - three bolts, and remove the cling film protecting the pier, and pull apart - almost forgot to disconnect the board jumper

Both sides fitted and also started to fit the cross braces - need to print more

View from rear

Paul

 

Thanks Pete

 

Well that was long - 1st coat of Humbrol Enamel Matt black applied to the rear of the bridge (by brush as well !!!)

and another view

Paul