If anyone was wondering if this machine was ever finished, it was, and is in use daily. Really happy with how it turns out it chews through aluminium and is very accurate. Would I recommend glass reinforced concrete? Yes, its stable after the years. But, probably not the most efficient way to build a router. For what its worth, time well spent in my book. Sorry for digging up the old build log but, I wanted to finish the thread off with some long range thought for anyone finding it. Im making a fixture plate at the minute, I will try to gather some pics later.