Random blobs

Either random pausing, worn nozzle, or you have moisture in your filament. The latter is what I would have my money on.

Say no more. I just found a solution for this.
http://www.instructables.com/id/DIY-3D- … nt-Dryer//

Should function similar to the print-dry without having to buy another dehydrator.

Will post results once the container arrives tomorrow.

I've been doing a lot of fiddling with Cura recently since my current employer just got a TAZ 5, and you might want to check if there is a z hop.

But I also noticed with Cura, no matter how many settings I changed, even running in Spiral Vase Mode, I couldn't get rid of the seam. Have you tried running the same print with slic3r or s3d?

there should not be any seam when running in vase mode - none at all.. it is supposed to be a continuous smooth motion all the way.
if you are getting seams in vase mode you have other issues.

A little late on this but here are some pointers to reduce these kinds of blobs:

- Move Z at the fastest velocity, acceleration and jerk your set up will reliably allow.
- Play with jerk and acceleration on XY. Your machine may be configured to the default which is 1500 or so acceleration and 20 jerk which can be increased.
- Do not force retractions on layer changes. Cura likely has a setting for this somewhere.
- Retract as little as you can, speed is not as important as distance. You can also play with E acceleration and jerk to increase retraction speed, but on a direct drive extruder set up like the Solidoodle retractions are fast anyway.
- Use a wipe function if Cura supports this.
- Fast travel movements, 100mm/s+

You will never eliminate a seam but you can reduce their ugliness.