import traceback
try:
    o=occurrence('C28_R1_01_');b=worldcopy(o)
    for x in [-9.1,9.1]:
        for y in [18.0,66.0]:b=cut(b,cyl(x,y,.85,-5.1,-1.1))
    replace(o,b,'C28_R1_01_Front_Shell_Chalk_Mesh_Round_Controls')
    print('Original four speaker pilot bores restored through cosmetic skin fill.')
except:print(traceback.format_exc())