Some more experiments:
-Printing the same hyperboloid off centre does not alter it's appearance, so it's not centre-specific.
-Printing a set of cylinders show the waves nicely.
The cylinders are all nearly the same regardless of their position on the platform.
So, it appears to be a Z-related, not position related.
-Printing bars horizontally fail to reveal any waves.
There are some Z distortions, but they are noise, not waves.
-A simple diagonal cylinder, similar to the original, does show pronounced waves, but not as well as the original.
The waves seem to increase with height, somewhat counterintuitively.
In my case the heat bed is connected directly to the power supply, with no electronics in between but a mechanical switch.
It's always on.
-Printing the same hyperboloid off centre does not alter it's appearance, so it's not centre-specific.
-Printing a set of cylinders show the waves nicely.
The cylinders are all nearly the same regardless of their position on the platform.
So, it appears to be a Z-related, not position related.
-Printing bars horizontally fail to reveal any waves.
There are some Z distortions, but they are noise, not waves.
-A simple diagonal cylinder, similar to the original, does show pronounced waves, but not as well as the original.
The waves seem to increase with height, somewhat counterintuitively.
Unlikely, unless i don't understand the mechanics of the problem in the example.Quote
MrDoctorDIV
have you checked that it isn't the heated bed?
In my case the heat bed is connected directly to the power supply, with no electronics in between but a mechanical switch.
It's always on.
However, that's what i see on the cone-cylinder test piece (last image) - the waves get wider apart and more pronounced towards the top.Quote
MrDoctorDIV
Are the waves the same distance from eachother on all models? Or closer together the longer it takes each layer?