I am going putting aside my hesitation of posting details on this forum with the work I am doing to refurbish this early curved ornamental cabinet. Specifically, I am going to cover how I went about working out the original radius used to construct this cabinet. To understand the specifics, I will also include my initial findings when all 3 curved panels were temporarily pinned together.
The following in black ink pen clearly shows that when compared to a scribed pencil line at 156mm radius, the mating bevels on each of the frame stiles needed to be re-worked to better match the correct radius.
To then return to how I was able to work the correct radius, I used masking tape to measure the circumference around the cabinet.
The measurement of 492 (180 degrees) was then multiplied by 2 (=360 degrees) , and the resulting 984mm was imputed into the following formula to give me a radius value of 156mm.
http://www.rkm.com.au/CALCULATORS/CA...le-sphere.html
After scribing the 156mm radius on a reference board, and re-working the bevels on each of the frame stiles, I was able to end up with an excellent match.
Stewie;