Known radius on level plain to radius on slope
Explanation; this concerns curved stairs, I have a known radius of 2440mm on a level plain now the slope of the stringer going down the stairs from one floor down to the lower floor is at 32deg of slope what would the new radius be? I know that it will be bigger radius (say 2800mm etc) so would like to know the full formula to arrive at the new radius without having to make templates then calculating the new radius off the template by math, as sometimes it is not feasible to travel to the job site and do this to make a moulding from edge of stringer to the drywall.many thanks (woodworm)
key strokes to ebaines answer
Dear Mr ebaines, thank you for your most helpful reply; on the equation
R= r over cos2 pitch, remember that 2440mm was the flat radius and 32deg was the slope so I put 2440 divided by coscos32=3632 where did I go wrong? Could you please put me straight again thanking you (woodworm)