For me one of the great attractions of this forum is the mixture of common sense, common sense being not at all common in general usage, and cutting edge science that is available on an almost daily basis. I want to read Dean's and Boyan's blunt comments on what is sensible for someone wishing to build a first machine for cutting out wooden parts for their hobby projects, and I want to see what Joe and John can offer in the way of extreme accuracy for a home hobbyist on a DIY budget for those that are interested in achieving it. Our main problem is ensuring the novice reader is not confused regarding what is practical and achievable within their target spend of both money and time.