On Thu, Apr 23, 2020 at 01:50:59PM -0700, Kamil Jiwa wrote:
> I've been printing a 20mm calibration cube and I get layer shifting at
> junctures where the layer patterns change.
That's the important part there. This sounds a lot like backlash, i.e.
when approaching the same intended XY coordinate from different
directions/speeds, you end up in a different actual XY coordinate
depending on where you approach it from.
What you should try is to remove slop as much as possible and maybe
print slower. A typical low hanging fruit is to apply tension springs
between each pair of rods, as close to the joints as possible.
Then try printing at a constant, lower speed, and reducing your
> For example, if I print with 3 shells, then the outline of the 4th
> layer will not perfectly match the outlines of the 3rd layer. Here's a
> picture where you can see the shifts
> and other artifacts: