Pipe notching template guide

Made quite a few pre made notch templates for my bicycle project, for multiples angels.  

Will add more sizes and also try to figure out a  model scale to pipe diameter ratio. 

Name convention is: 
M - Master (pipe you are going to notch)
S - Slave (what pipe it will fit around/to)
D - Degrees (angel) where slave pip is 0 degrees

So example M20S25D20

the pipe you are going to notch is 20mm and you are going to notch it to fit a 25mm pipe at a 20 degree angel of attack.