Strange issue on outside one one side and only vertically

[curious aardvark]

try printing off the sdcard.
It's the besy way for any print over about 10 minutes anyway.

What operating system are you using ?

(looks at file)
that's a solid cube with a few holes in it.
Not a box.
Is it supposed to be solid ?

If you print it with 0% infill, the tube bts won't print without supports.

That's one weird thing :-)