Think about how "vase mode" works......then ask yourself the question! Vase mode prints a spiral. When it gets to the top, there can only be one of two things the printer can do: 1) Stop printing dead.....thus leaving a visible step or 2) Taper the top layer from full thickness to somewhere near zer...

I've never used the Dual extruder wizard as I don't have a dual extruder printer....but.....Please define.... from the list, Is it the Process list: Capture.JPG or the Profile list in this dropdown: Capture2.JPG If the former then fool you....as its dangerous to store your precious profiles on your ...

Think about the mechanics of changing nozzles! Think!

Nozzles body lengths vary....the position where the nozzle is "locked" can vary. How can you set the nozzle to bed distance with a part-completed print stuck on your bed?

Buy a two extruder printer.....or upgrade your printer to two extruders.

Double-click on the part....and the model info window will open. The bottom three settings are XYZ rotation values.

Y-piece slices okay on my PC. I think you need to look at your hardware...…

Hopefully, someone may be able to suggest what you now need to do.

Reduce both the support pillar resolution and extra inflation distance.

The shape file has a number of issues that S3D is not able to cope with. I've run the model through 3DBuilder and it now slices correctly.

Attached is the repaired shape file

...by understanding how the package works! Simple as that!

Mesh menu==>Separate Connected Surfaces. Click it! Problem solved….

Now the long bit...the explanation. The .stl file has multiple meshes...caused by CAD package. & S3D does not like multiple meshes.

Hi Marcus.

You have a very good printer there. It might be 7 years or so old....but its a rock-solid piece of kit!

Try this factory file and see if it prints okay.

You may have to adjust the global-Z offset if you don't get adhesion to the bed...

Do report back on how you get on...…...