Thanks again Dave, it was Human Error of course !

I hadn't notice the change in prompt in the status bar, will keep eyes open in future

Cheers,

Gary.

Hi Dave, thanks for the reply.

I've tried every curve-type in curve maker but can't get it right.

Which curve did you use for your example, and can you stipulate start and end radii ?

Thanks,

Gary.

Hi,

i've tried using the arc tools but i can't find a way to draw a circle with a radius that decreases by a certain factor between beginning and end, sort of like a single-turn, gentle spiral.

Any help greatly appreciated

Thanks,

Gary.