A Gantt chart is a type of bar chart that illustrates a project schedule, named after its inventor, Henry Gantt, who designed such a chart around the years 1910–1915. Modern Gantt charts also show the dependency relationships between activities and current schedule status. (Wikipedia)
The slicer program which is connected to the 3D printer allowed us to estimate our used filament to be 177764.56mm^3, which is 177.76456 cubic meters. This divided by one spool, which is 300m, and multiplied by $20, which is the price of one spool of filament, runs the cost of our rocket to about $11.85.