Slicer Idea to improve layer adhesion  

Slicer Idea to improve layer adhesion

The following ideas seems obvious and presumably I am not the first to come up with it...

Prusa slicer has an option called "Automatic infill combination"  that produces a vertically thicker infill line allowing for example infill to be added every say 2 or 3 layers.

• First, what if the infill area were divided into several series of recurrent, narrow "bands" where the "Automatic infill combination" in each band is staggered vertically relative to the infill in the adjacent band. This could be done in both X and Y directions, even randomly. Specifically, say the "height" of the infill combination is 0.4mm, then you could divide the infill into multiple small sections that are offset from each other by 0.1, 0.2, and 0.3 mm.

  This should presumably lead to a much stronger vertical adhesion since there would be no clear uniform vertical layer line for breakage.

• Second, as an extension of the above what if instead of dividing the infill area into discrete regions,  individual infill lines smoothly but randomly varied their offset from 0 to 0.4mm mm so that each infill line would span across layer lines.
• Third, what if a new pattern of infill were created that is one or more lines thick with each line starting at a different offset relative to the next one (e.g., say 0.1, 0.2. and 0.3 for a 0.4mm infill line height). Then there would be horizontal-layer-to-layer adhesion between adjoining infill lines in addition to the standard vertical layer-to-layer adhesion, again increasing the overall vertical strength.
• Fourth, what if  (interior) perimeter lines were similarly vertically offset from their concentric neighbor by a fraction of the layer height using the same approach.
• Fifth,  what if  additionally, (interior) perimeter lines had an analogous notion to "Automatic infill combination" so that while the outer perimeter line would obey the specified layer heigh of say 0.1 mm for maximum external "smoothness", the inner perimeter lines would wherever possible have a height of say 0.4mm to both add strength as well as speed-up the print

The result of combining the above would be that both perimeter lines and infill lines would be vertically offset from each other meaning that there are no clean vertical layers to break. Additionally, whenever there are adjacent lines there would be horizontal layer-to-layer adhesion that would span vertical layer lines.

Again, I'm sure I'm not the first to think of this but it seems like slicing could be radically improved here to create a printed solid where vertical adhesion could approach the strength of horizontal adhesion as the vertical height component is randomized and overlapped between adjacent perimeter and infill lines.