HOW DOES IT WORK
The first step is realize the graphics of your pins.
So, for 50mm pins, the diameter A should be of 61.1mm, the diameter B should be of 46mm.
You need to print the graphics of your 50mm pins
When you have finished to print the graphics of your 50mm pins, you need only to trim them with our circle cutters.
Assembly your 50mm pins
Now you need one of the press for pins.