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Post details of your T gauge layouts and the progress you are making.

Re: The Bridges at Saltash

Postby rvn2001 » Wed Aug 07, 2019 12:53 am

WOW! What a difference from the front to the back. Awfully deceptive.
Thom Welsch
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Re: The Bridges at Saltash

Postby dkightley » Wed Aug 07, 2019 10:52 am

Well....

Today's the day I'm having to put work on Saltash on the back burner for a couple of weeks so I can get The Bridge ready for its final appearance for the time being. I need to tidy up and pack the layout away....but I'm likely to be able to do the odd bit of CAD and printing work.

After the dry assembly of Tamar bridge I spotted that I'd made an error in working out the deck height above the water. Not an issue on its own....but the Tamar bridge ended up out of proportion with the Royal Albert bridge, and looked far too high. So.….adjustments have been made to the CAD files for the bridge towers and the inboard and outboard chassis of the track run-arounds. I've reprinted the bridge towers...but the run-around chassis....4 of them...are the 4 largest 3d-printed parts I've ever produced, and I have two 10 hour and two 14+ hour print sessions to get done!!!

One good thing about having to pack the layout away......it keeps my workshop somewhat tidier that it is now!!! And I get an idea of how the build and pack-up tasks are shaping up....how things pack away, etc.
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk
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Re: The Bridges at Saltash

Postby dkightley » Thu Aug 22, 2019 10:06 am

The layout is back out in the workshop...…and I've started in anger on shaping the scenery.

I'd previously cut a piece of insulation foam to an approx. size to form most of the scenery for the West side of the layout. I marked five metre contours on the surface and then , using a sanding drum in a Dremel type tool with a flexible shaft attached, I gouged/sculptured a staircase to the contours. 5m is 11.1mm, 10m is 22.2mm, etc
IMG_3958_red.JPG
IMG_3958_red.JPG (86.83 KiB) Viewed 10 times

I've sliced the foam into two sections down the centreline of the bridge viaduct and am starting to create the road sections. This shot is just starting to show the contours of the land
IMG_3960_red.JPG
IMG_3960_red.JPG (63.77 KiB) Viewed 10 times

This phase of the build is one of the messy phases....a good dust collection system is essential. Something I don't have.....I just use a vacuum cleaner to suck the foam dust/shavings on a very regular basis. Hope it survives a second layout!!!!
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk
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