Yves

Your going to have to be very precise every time you change a bit to
make the cuts line up right.

If its for you kitchen, you may want to consider a raised panel bit.
I just finished 16 raised panels for some basement cabinets using MDF
and they came out great.

I read in FWW that you should smear some drywall compound on all
exposed/cut edges before you paint to get a nice smooth finish.
Haven't done that yet, SWMBO is the painter in our family, but I'll
post how it turns out.

Chuck