Customizable text for Alphabet Train

This is just a quick OpenSCAD file that allows you to import the train letter .stl files from the awesome [Customizable Alphabet Train](https://www.thingiverse.com/thing:4878717) by [DaveMakesStuff](https://www.thingiverse.com/DaveMakesStuff) and export a custom train.

Update: A user named rans has updated the script to allow for curved trains!

- Put the .scad file in the same folder as all the STL files from the [original](https://www.thingiverse.com/thing:4878717)
- Open it with OpenSCAD
- Type the text that you want
- Render and export the combined STL file

Rendering will take a few minutes.

If you've never used OpenSCAD before, there is a very quick guide for doing so below.


The Split function in the script is from [The OpenScad Useful Library](https://www.thingiverse.com/thing:1237203) by [roipoussiere](https://www.thingiverse.com/roipoussiere)