hi thanks for the quick response again, here is a breakdown of what ive done so far.

1. create a circle.
2. create a smaller circle on the outer edge of the first circle in step 1. and use a radial array to create the indent shapes for the flutes
3. boolean subtract to take the array away from the original circle in step 1. leaving a profile of the column
4. i then used join to join the profile pieces together
5. then on this shape i extrude to create the column.

this leaves me with a circular column with the flutes i need.

i then export this shape s .obj, with ngons as modo can cope with these but the poly's dont seem t be joined as in the final image.

hope this is a bit clearer, im using 19dec v2 beta

thanks again

Tony