How about this?
Same pipe - 165mm OD, 5mm wall, 1500mm long
Base plate - 300mm diam, 12mm thick
Same ribs - 1000mm x 100mm at base
Top plate - 8mm thick - does this really need to be so thick up here??
Should I join the ribs into the base of the top plate??? (Actually should I get the welder to do that....)
I was intending on leveling via double nuts on the base threads - likely M16 or 3/4" threaded rod in the concrete. What play do the holes need in order to be able to provide some degree of adjustment - obviously if the fit is perfect, not much adjustment will be possible - any ideas on play (if any needed), or should I just get them cut to fit the appropriate rod???
Thanks so far guys!