I ran into a strange issue on mirrored object prints undesired artifacts near overhang areas. Since non mirrored object prints fine, printing direction is likely the culprit as mirrored object is printed in the same direction as the rest, instead of reverse direction (to be true mirrored object)
Orca has a reverse direction on even layer option but it’s on even layers only. Is it possible to change tool path direction in printer settings’ machine Gcode?
If your theory is correct, turning on the every-other-layer option will make both the original and mirrored copies equally “bad”, but it’ll be not as bad as the bad you’re getting now.
I’m pretty sure that is the case. It seems the print head shifts slightly immediately after printing the overhang area. The one on the left the of image, print head prints the smooth area before printing the overhang.
Print speed is also a factor. Print head moves slower at the beginning of a new path and gradually reaches the wall speed limit as it travels until the end of the path. I was able to improved but not removed the artifacts completely by moving the seam further away from the trouble area, give print head time to build up the speed before it reaches the troubled area.
I’ve tried reverse engineer the Gcode file from Orca’s reverse on even feature without success.
Reversing direction should be a fairly simple task. I’ll put in the feature request.
It seems print head can shift slightly immediately after printing overhang. I ran into this issue Change tool path direction (printing direction) via Gcode? - #3 by Maker10
Orca Slicer has a Reverse on Even layer feature in overhangs. It would be great if Bambu Studio can have a feature that reverse all layer (at least the outer wall)
