helix with rectangular cross section 2

Hi,

I was following the thread re: helix with rectangular cross section and downloaded the file helix.mph.

By fudging the parametric values, I almost get what I need except the the major radius appears to be 1mm.

I need a major radius of 2.5mm but don't see how to adjust any of the parameters to get this.

Also, the resolution of the swept helix appears quite coarse.

If anyone in the forum can help to fix these two items, it would be greatly appreciated.

Thanks,

Art