Burunduk
My apologies I got distracted.
The most common sin plate is 6 inches between
Center of the radius at each end.
A sine plate can be purchased with a lip.
Measure the thickness of the lip
Take a measurement difference of center of the radius. Use gage blocks to set the correct distance or dimension.
I would use a height gage with a drop indicator
To obtain dimensions from the calculate to obtain center line if the part.
It us possible to stand the sin plate to inspect obtain to center line of radius to the lip.
View attachment 5779