Printing cylinders

[whoDat]

I used the same .fff config for the 3 objects in this photo, curious why the sample cylinder on the left is printing so much better than the flute prints? Any suggestions would be appreciated!

photo : http://imgbin.org/index.php?page=image&id=12524
object : http://www.thingiverse.com/thing:31610

whoDat

[Karl_Williams]

I used to get those bumps when my Z-Axis speed was too slow. Also, If you uncheck the box for random start location then the bumps will all align. you can also try lowering your extruder temperature a couple of degrees and tweaking your retraction distance and speed. I have been getting some really smooth finishes by using 2 or 3 shells by laying down the inner shell first.

Karl.

[whoDat]

Thanks for the tips!