hello all,

im working on a design for a part that is going to be injection molded, so the surface has to be perfectly smooth.

i have made the surface loft with a few guide curves, but im getting a surface that isn't smooth enough.

the problem that i see is between the guide curves- the surface sinks a bit between 2 curves.

have changed the guide curve influence type but the best result that i got isn't good enough for my needs.

i also dont want to add more guide curves because from my experience the surface is smoother the less guide curves you have.

here is a link to the solidworks 2016 part file:

Dropbox - Design.SLDPRT

if any one has any ideas on improving it will help me a lot.

with thanks,

joel