ticker -acme nut error

[Richard Cullin]

the left hand acme metric 8mm nut stl/obj is not good , full of strange bits
rh nut and bolt  is fine

[ArtF]

Thanks Richard:

  I will check it out. I have already fixed many items for next release. Manifolds are
now properly fixed to eliminate such warnings from 3d printer imports.

Art

[BobL]

Thanks Art.