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CAD Model RR Planning
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I use 3rd Planit. I think it is very powerful. It has not been easy to learn how to make sophisticated alignments but they can be done. It will allow you to plan benchwork, terrain, or anything else you have the patience to learn how to draw. The greatest benifit of using special RR CADD programs is that the good ones include libraries of track components and have "intelligence" in that track components must connect together properly. For example, if you draw a ladder track and some body tracks, you can drag the whole thing over to another track and when it snaps to the end of that piece, the whole thing automatically rotates so there are no kinks in the alignment. Less sophisticated programs don't serve you well if you design a plan with kinks or somethig else that can't be built. Another example in 3rd Planit, it will check all your grades and curves to make sure you haven't violated required clearances or made the curve radii too tight. <br /> <br />I also "doodle" at work using Microstation testing out some ideas before coming home. If you are willing to create the track components, there is nothing you can't do in Microstation. It is the most powerful CADD program I have ever used. I have very little first hand knowledge of Autocad but we use it in our office. <br /> <br />Good Luck - Ed
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