i’ve experimented with a technique that i’ve invented myself which i referred as variable walls thickness. the idea is to use finer layer height for the outmost perimeter and thicker layer height for inner walls. the slicer will print the finer layers first, once the finer layers is as thick as the thick layer, it will print the thicker layer as well. say a 0.1mm layer on the skin, 0.3mm layers on the inner walls, the slicer be printing the thickest walls in an interval, every 3 fine layers.
I’ve experimented by using Processes on s3d, load a model twice (basically two model), place the models at the same position which they will overlap eachother. the first model serves as the outershell (only 1 perimeter). the second model serves as the inner walls by applying horizontal offset to shrink the model in xy plane (since slicer is able to do 3d offsets, this will work even better).
The idea can also be combined with variable layer height technique to further increase surface details and shave print time.
Why is this useful?
no other slicers do this but you can hack this with horizontal offset and process on ideamaker and simply3d. it will create a detail shell on the skin layer but strong walls inside both reduce the print time and improve the print quality.
the flaw is the finer layers and thicker layers will sometimes overlap with each other, but it can be solved by doing 2 tracks on the finer layers and/or having a gap between the outer and inner wall. however, with pathio, this is already the case, the inner walls can simply be “combined” into a single layer.
- a longer and pointier nozzle will work better as it can deal with overlapping slopes better.
- the challenge will be to figure out the collisions, this is usually not a problem if the slopes are not too steep.
- allow the user to specify the nozzle “angle” so that calculation can be done on the limits of the slopes - as per layer height differences.