Normals issue with exported mesh of mirrored linked blocks

[wynott (Ryan Wynott)]

I think the key might be in here

List rotation of an object

@juancarreras, below seems to do the same as the rvb above using the converted function: # original Script written by Jarek Bieda import Rhino import rhinoscriptsyntax as rs from math import atan2, pi, asin def ResetBlockZRotation(): f = 0 block = rs.GetObject('Block Instance ?', 4096, True) r = DecomposeXformRotation(rs.BlockInstanceXform(block)) v = round( r[2] * -180/pi, 0) + f if v < 0: v += 360 rs.RotateObject(block, rs.BlockInstanceInsertPoint(block), v, F…

But… Starting to get over my head