# Triangular Warren Truss Bridge in LEGO


Lately I have been playing around with LEGO (again). To pretend that I am an adult I'm designing
models with [Lego Digital Designer](http://ldd.lego.com/). It took some getting used to, but it is
a nice tool. Also it runs perfectly in [Wine](https://www.winehq.org/) (on my Mac running Linux).

I'm toying with a plan to build a LEGO train triangular [Warren
truss](https://en.wikipedia.org/wiki/Truss_bridge#Warren_truss) bridge.

{{< figure src="/images/2016/bridge2-2.png" caption="Triangular Warren truss bridge: front view." >}}

Not having build it, I can't *really* say if a train passes under it (think it does), and if it
is structurally sound (again I think so).

Here is a side view.

{{< figure src="/images/2016/bridge2.png" title="Triangular Warren truss bridge: side view." >}}

The only annoying bit is that I could not line up the top the beam, I think if I were to build this
I could make that work, but I'm slightly worried it has some real life repercussions.

The `lxf` file can be [found here](/downloads/2016/bridge2.lxf).

# Update

Full (i.e. longer) bridge (still the annoyance of those top beams).

{{< figure src="/images/2016/bridge-longer.png" caption="Full Triangular Warren truss bridge." >}}