This engine is due for official public release in about two weeks, but I have been given the go-ahead to play around with the pre-release version. So what better way to try it out than in a Meccano demonstration application. I chose to demonstrate the interaction between some of the very large range of Meccano gears taken from the early 1960's red/green Meccano era (about the time that I was playing with the real thing!). Find the demo for download (no false positives with AVG !) on my Meccano page.