Thread: My bevel angle calculations

why not make it simple?

Let:

x = spine width
w= width of razor
n = number of tape layers
t = thickness of tape
Θ = total bevel angle °


total bevel angle:

Θ = 2{arctan[(.5x + nt)/w]}

this accounts for no tape, one or several layers of tape, etc. (when layers of tape = 0 then nt is 0)

For accuracy, in your diagram you have the spine along the x-axis and the blade along the y-axis. This is fine as long as you position the area of spine wear along the x axis such that the spine wear on the left has coordinates (-.5x, 0) and the spine wear on the right has coordinates (.5x, 0), or make some similar compensation if you choose to not have the spine wear directly on the x axis. The width w would then be accurately measured as the distance from the origin to whatever y value the very tip of the blade occupies, assuming a non-warped blade.