{"id":2679,"date":"2009-03-08T22:36:10","date_gmt":"2009-03-09T03:36:10","guid":{"rendered":"http:\/\/www.bronx-terminal.com\/?p=2679"},"modified":"2009-03-12T09:18:37","modified_gmt":"2009-03-12T14:18:37","slug":"tidal-adjustment","status":"publish","type":"post","link":"https:\/\/www.bronx-terminal.com\/?p=2679","title":{"rendered":"Tidal Adjustment"},"content":{"rendered":"

Waterboard for Bronx Terminal<\/strong><\/p>\n

\"Low<\/a><\/strong><\/p>\n

When I designed and built the benchwork for the terminal I made a slight miscalculation on the water level.\u00a0 I took a guess at the distance from the ground level and the water level, and I got it wrong by about 3\/4″.\u00a0 The water ended up being too low.<\/p>\n

After doing a bit of research about tides along the Harlem River and reading a few articles on float bridges I confirmed that what I built would be okay as there could be quite a difference between the level of the float and the level of the ground, depending on tidal changes and the load on the floats.\u00a0 This difference was taken up by the float bridge, a pivoting bridge connection between carfloats and terra firma.\u00a0 Sometimes the float bridge could be an incline, sometimes it could be level or a decline.\u00a0 What I am aiming for is either level, or a slight decline.\u00a0 The water level as it currently is would result in a very noticeable decline, and while technically correct, I thought that would be a bit distracting.<\/p>\n

This error was apparent shortly after I set the first carfloat on the water section and I have been debating on how to fix the issue for some time.\u00a0 I decided to have a new piece of plywood cut to fit precisely over the original water section.\u00a0 I also decided that since I am designing a new piece I might as well make it wider so it could accommodate two carfloats sitting side by side, a scenario I have seen in many photographs.\u00a0 Having two float moored together at the float bridge would provide storage for 34 cars!\u00a0 And look good too…<\/p>\n

\"\"<\/p>\n

Using two floats means I could simply swap them to generate a fresh set of cars for the terminal.<\/p>\n

Having designed the entire layout in 3D CAD means that I could return to the original files to extract the necessary information to have a new piece of plywood cut.\u00a0 Theoretically\u00a0 it would be a perfect match.\u00a0 I created a simple 3D model of the carfloats and inserted them into the design to confirm they would fit well.\u00a0 I wanted to have a couple of inches of modeled water around the floats, and also create a wavy edge to the layout at the water.\u00a0 In photographs I didn’t want to have straight edges at the water, they stand out too much.<\/p>\n

\"virtual-water\"<\/a><\/p>\n

Virtual model of the Bronx Terminal.<\/em><\/h6>\n

Once I had the design finalized I sent the files to Brian, my friend with the CNC router who cut out all the parts for the layout two years ago.\u00a0 I went over this afternoon and we cut out the new section.\u00a0 I should have brought the video camera, it is very cool to watch.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

This is the new piece, cut from a single sheet of 5\/8″ sheething.\u00a0 To keep it as light as possible, I created pockets in the bottom to remove as much material as possible.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

This is where having the entire layout designed in 3D really pays off.\u00a0 I was able to keep the pockets precisely where they should be by designing the part virturally in place on the layout.\u00a0 The CNC router simply follows the lines I drew.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

Of course the other advantage of having designed the layout in 3D is that it fits together like a puzzle.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

It fit perfectly, added some more space for the second float and brings the water level up so the float bridge will only have a slight decline grade on it.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

The pockets line up precisely with the original edge of the layout.\u00a0 The other pockets will be hidden under the new “waterboard”.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

The float bridge will occupy the space between the track and the carfloat.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

Two floats side by side.\u00a0 The hull of a steam tug sitting next to the float.\u00a0 I am not sure where I will put the tug yet, but I do want to incorporate a tugboat into the layout.<\/p>\n

\"Waterboard\"<\/a><\/p>\n

This should look great!<\/p>\n

\"Waterboard\"<\/a><\/p>\n

Ignore the boxcar missing a set of trucks….<\/p>\n

\"Waterboard\"<\/a><\/p>\n

\"Waterboard\"<\/a><\/p>\n

\"Waterboard\"<\/a><\/p>\n

Will look better once there is actually some water modeled, but so far I am happy with the addition.\u00a0 Adds about 6″ to the width of the layout, but that isn’t an issue.<\/p>\n

-T.<\/p>\n

On to Next Section…<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Waterboard for Bronx Terminal When I designed and built the benchwork for the terminal I made a slight miscalculation on the water level.\u00a0 I took a guess at the distance from the ground level and the water level, and I got it wrong by about 3\/4″.\u00a0 The water ended up being too low. After doing […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,4],"tags":[],"class_list":["post-2679","post","type-post","status-publish","format-standard","hentry","category-benchwork-construction","category-front-page"],"_links":{"self":[{"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=\/wp\/v2\/posts\/2679","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2679"}],"version-history":[{"count":23,"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=\/wp\/v2\/posts\/2679\/revisions"}],"predecessor-version":[{"id":2759,"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=\/wp\/v2\/posts\/2679\/revisions\/2759"}],"wp:attachment":[{"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bronx-terminal.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}