Thanks for responses.
overtime, bruegf - don't punch your own credit card, just punch your wife's
markus - Yes, I did it by myself. my friends said "How do you make it? is it true? ". But my secret is Festool.
Festool makes it for me anytime anyplace. Without Festool, I was playing with nail and hammer.
OF 1400 router made woodstrip, for safety I used my own woodstrip jig.