Allevi Slicer Infill Options

The Allevi Software features a built-in slicer so you can turn your STL files into g-codes for bioprinting. Below, you can find illustrations of the slicer infill patterns currently available.

Infill Types

• Zigzag: This infill pattern ‘zigs’ toward the wall of a construct and then ‘zags’ away, forming a series of parallel strands. Zigzag infill is useful for filling the space between shells quickly.
• Grid: This infill is very straightforward with perpendicular lines in the x/y plane that fill the space between the walls of the construct. Grid infill is a versatile infill option offering good speed and mechanical characteristics.
• Triangles: This is another fairly straight forward infill with triangles arranged to share sides. Triangles infill is useful for creating strong parts with relatively low material use.
• Concentric: Concentric infill is easier to picture once you’ve seen it (check the sections below). The infill pattern is comprised of shapes that decrease in size, matching the general shape of the wall and sharing a common center point. This pattern is useful for modeling layers of tissue.

For more insight on the role of infill pattern and infill density on mechanical properties check out these articles:

1. Balakrishnan Subeshan, Abdullah Alonayni, Muhammad M. Rahman, Eylem Asmatulu, “Investigating compression strengths of 3D printed polymeric infill specimens of various geometries,” Proc. SPIE 10597, Nano-, Bio-, Info-Tech Sensors, and 3D Systems II, 105970N (23 March 2018); https://doi.org/10.1117/12.2296651
2. Cho, Ei & Hein, Ho & Lynn, Zarni & Hla, Saw & Tran, Thanh. (2019). Investigation on Influence of Infill Pattern and Layer Thickness on Mechanical Strength of PLA Material in 3D Printing Technology. 3. 27-37. 10.26666/rmp.jesr.2019.2.5.
3. Miguel Fernandez-Vicente, Wilson Calle, Santiago Ferrandiz, and Andres Conejero. 3D Printing and Additive Manufacturing. Sep 2016.183-192. http://doi.org/10.1089/3dp.2015.0036

Infill Options in Square Cross Sections

Infill Options in Circular Cross Sections

No Infill and Full Infill

Since the Allevi Slicer offers infill distance rather than % volume infill, to achieve full infill you only need to set the infill distance to about the width of your extrusion nozzle. This will mean that the strands of the infill are so close to each other as to be continuous.

For more information on picking these infill types you can follow our Allevi Bioprint Online: Current Print Section Guide or our Pro Software Guide. If you have any further questions you can contact us by email at [email protected].