Gaps in Sliced Vertical Cylinder

[NickR]

I'm printing a part with a vertical cylinder
The sliced preview shows gaps in the cylinder walls ( it did manage to print, but was ugly )
See screen shot attached.

Any Ideas? or additional information needed to diagnose?

[CompoundCarl]

Post your factory file (file > save factory file)

[NickR]

Thanks for the response - I found the problem - there was a small vertical gap in the solid model - fixed that and all is good!