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You are right. A horizontal hole will not be expanded because it isn't vertical. Note that the Horizontal Expansions settings are with the rest of the Wall settings. Those settings only affect the XY.
So your horizontal hole must be designed correctly. Thick layer heights can make the hole oval shaped with the long axis in the Z. Cura has to hit the next layer height and it rarely is exactly at the quadrant of the circle. The tops and bottoms of horizontal holes are characteristically flat.
When it's necessary I chase them out with the appropriate drill. Pin chucks come in handy.
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Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
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GregValiant 1,330
You are right. A horizontal hole will not be expanded because it isn't vertical. Note that the Horizontal Expansions settings are with the rest of the Wall settings. Those settings only affect the XY.
So your horizontal hole must be designed correctly. Thick layer heights can make the hole oval shaped with the long axis in the Z. Cura has to hit the next layer height and it rarely is exactly at the quadrant of the circle. The tops and bottoms of horizontal holes are characteristically flat.
When it's necessary I chase them out with the appropriate drill. Pin chucks come in handy.
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