You eliminate one problem, only to grow another. Anyone have any idea how to eliminate this wood grain type pattern that’s showing up in prints? I was told it could be the “mm_per_line_segment” setting? I’ve played with that value, even disabled it all together. Still getting this very odd outcome.
That’s odd. It could be many things 
Are you sure your machine is all tight and good on the mechanical side ?
Jerk and acceleration, machine harmonics, not sure on the smoothie side how to play with settings to mess with jerk and acceleration.
@Arthur_Wolf Everything’s nice and tight. That was my first thought as well. I’ve tripple checked everything that moves. 
The print itself is very solid. No issues structurally, you don’t really feel the ridges. They’re there, but it’s more of a cosmetic issue. It’d be really handy if I’m printing with some Faux wood filament, but looks odd with everything else.
@Chris_Wilson What sort of extruder do you have ?
It came with the Printer. It’s a K-head hot end. It’s very similar to an E3D, but definitely not one.
I have ordered an E3D-V6 for it. Waiting for it to arrive.
@Chris_Wilson I mean is it bowden or direct-drive ?
Oh. Sorry. It’s a bowden. 1.75mm
Those ripples might be related to the fact it’s a bowden …
That’s odd. I don’t remember seeing those in the past. But I was focusing on other stuff.
@Chris_Wilson those sorts of ripples are a very common complaint people with bowden have. It could be something else … it’s so hard to diagnose things with 3D printers.
@Arthur_Wolf lol. I completely understand. No worries. I can live with it. As I said, it’s not affecting structural stability of the part, and It really only becomes evident with long straight pieces like the one pictured.
@Chris_Wilson is this a delta? in which case you should not be setting mm_per_line_segment at all you would be setting delta_segments_per_second to 100 If you have the other set then delete it! and set delta_segments_per_second 100 and this kind of pattern would not be caused by that anyway.
That actually looks more like the infill bleeding through to the perimeter, try increasing the number of perimeters.