Since high-frequency characteristics is necessary for RF circuit boards, it is important to
mill sharp edged lines and spaces as below
However, the lines and spaces milled by average prototyping machine with 60 degrees
milling cutter (without run-out in consideration) will result to the picture below;
More features of FP-21T series
FP-21T / FP-21THP
Performs spacing of 0.1mm or more in milling
An Extreme precision machine which performs 50µm spacing. Optimal for microwave designs.