Hello just want to ask question regarding edge finishing i already tried many bit most of it same or just a make a little difference from 1 flute hss to 3 flute onsrud carbide all

here the picture of machine i think it rigid enough to cut acrylic

using servo motor with 4.5 kw bt30 atc spindle i already test the runout of my spindle its around 0.004mm and im using sk tool holder with 0.002mm runout

those mark i cant even feel it when i touch only can see it by diff angle mostly i cut w ith 18000 rpm 60ipm