Hi! Been a long time since I posted.

I have a tough one here. Its a split line surface for a mould. Originally designed in Catia its was sent to us as a step file and typical of Catia models its is full of holes. Anyway I am attaching the splitline file and would really appreciate some pointers on getting these surfaces to join. Specifically:

The lilac surface are joined already. Its the orange ones that are problematic, particularly the dark orange one butting up against the lilac.

TIA.