That's a good question, and I've got a two part answer.
The fins really need to stay at a 5mm height, but with a cutter wheel, the center area would get "chopped up".
This is where part 2 comes in.
It occured to me last night that in order to prevent this thing from being chopped up, we could do most of the cuts with the circular saw blade, and finish it off with an endmill.
That's an excellent idea, gone_fishin. In this design, we could use 2 blades (1.0 mm) spaced 1.5 mm apart.
I'm getting into the heavy math this weekend, will report results later.
|