Layout progress

Layout progress

Postby WillYart » Tue Jan 15, 2013 3:57 am

Hello my TT friends! How is everyone?

Here's a photo of progress on my twice-around layout (the 3rd track on top is a spur that can eventually lead to other levels or a hidden yard underneath. The inner loop goes under the outer loop when considered counter-clockwise. I'll do something different in the middle, the plan there is up in the air.

The slots visible here are 5.4 mm deep; my risers fit tightly inside them. The riser heights were calculated by a spreadsheet, they account for vertical easement and superelevation. I'll use flex track; all curves have easements as well as provided by my rail planning software (Anyrail). The grade usually remains below 2% although there is an 8" section of track with grade 2.3%, at the beginning of a hill.

Most curves are of radii in the range of 18" to 22" although one curve has radius 16.5".
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Re: Layout progress

Postby railtwister » Tue Jan 15, 2013 11:06 am

Interesting. Is that a router jig for cutting the riser slots into the base board? I think your radii and grades should be fine, although the tracks being so close to the edge would make me quite nervous, even with a good thick layer of carpet on the floor of the layout room!

Bill in FtL
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Re: Layout progress

Postby ConducTTor » Tue Jan 15, 2013 11:48 am

I second the closeness of the track to the edge. It only takes one derailment to destroy a nice loco....

Otherwise, I look forward to the progress!
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Re: Layout progress

Postby WillYart » Tue Jan 15, 2013 5:31 pm

Thanks for the kind words for a beginner.

Yes the jig is for the slots in the baseboard. One side of the jig is adjustable (a piece of wood clamps down by screws which are tightened over the guiding edge, which can be shifted as needed). Thus I could make ~0.1 mm adjustments, allowing me to route nice tight-fitting slots. A little white glue will lock them in, but not so tight that I cannot snap them out with a hammer later if I need to change things.

All this was a good excuse to obtain this hobby-style miniature router from Proxxon: http://youtu.be/PKHkpA7Ovas

Well, I plan to install walls 2" or so high all around the layout. They may have to be shimmed, because as you have both noticed the track is.... very close to the edge. No wasted space!
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Re: Layout progress

Postby WillYart » Sun Feb 03, 2013 12:46 am

Update: Risers installed, Now placing the plastic tubing (http://www.amazon.com/SharkBite-U860B100-Tubing-2-Inch-100-Feet/dp/B003OATJWI/ref=pd_bxgy_hi_img_y.

0.jpg
Aligning the tubing.


2.jpg
Drilling hole for nail.


1.jpg
Held down with caulk and small nails (thus it can be removed without too much hassle.)


3.jpg
Setting a nail
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Re: Layout progress

Postby ConducTTor » Sun Feb 03, 2013 1:51 am

The tubing is new to me. Did I miss something? What is the concept behind it/its purpose?
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Re: Layout progress

Postby WillYart » Sun Feb 03, 2013 7:19 pm

Oh, yeah sorry I thought I said something about it in a discussion about roadbed height but I can't find it.

The flex pipe is my roadbed! Has some advantages above spines or plywood (cheaper, lest waste, high quality, compact / just right for TT scale, lightweight, east to install fine tuned grades, does not absorb humidity...)

There was an article a long time ago in the Model Railroader about it, and some guy was doing it recently, he posted some pictures here:

http://model-railroad-hobbyist.com/node/211

I'm using 1/2" pipe with no space in between; I'm using the second method talked about in the thread above (filling in the space between; I'll just use joint compound, he used actual cement). I am not using heat guns or anything to make it more pliable. I don't want it to droop, so I'm simply bending it in place, clamping or having someone hold it, and affixing it where it needs to be.

We'll see how it goes, hopefully not a disaster.

(Edit: fixed spelling error.)
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Re: Layout progress

Postby ConducTTor » Mon Feb 04, 2013 12:19 am

Interesting. I'm still not very clear on the advantages though :(
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Re: Layout progress

Postby Arseny » Mon Feb 04, 2013 2:50 am

WillYart wrote:There was an article a long time ago in the Model Railroader about it, and some guy was doing it recently, he posted some pictures here:

http://model-railroad-hobbyist.com/node/211


One tiny correction: model-railroad-hobbyist.com is not Model Railroader, it is Model Railroader Hobbyist, free magazine.
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Re: Layout progress

Postby WillYart » Mon Feb 04, 2013 3:21 am

Ah yes, the website I gave is not the Model Railroader article, it only mentions the original MR article.

Cheers, Bill
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