Most professional machines are not this size. I don't have a problem with the two ali uprights as they are the good stuff with plenty of webbing. What I want is a base that won't warp or flex and will keep the uprights in the same relation to each other.
I assumed that the concrete used for such things was not off the shelf concrete with glass added but rather a special concrete.
No not just timber, the moulds will be aluminium.
Graham |