found a ceiling design 30 foot diameter very detailed converted it from some difficult
cad format to a *.stl file and sized it to a smalled size
and cut it out .
Did loose a lot of the detail but still is quite interestinghttp://youtu.be/t7T7rTPRoQE
used 2 1/4 end mills one roughing flat 17 % stepover 80in/min feed 16K speed ,the round
bottom one 8% stepover 16K 100 in/min took 47 min total
not counting the steptime of 13 min