FOC - front of center - measuring tool
thingiverse
Front of center measuring tool to calculate the FOC of an arrow FOC %=[(L/2)-P) *100/L FOC %=[(total lenght of the arrow/2)-Point of balance from the top) *100/total lenght of the arrow FOC = [(30 inch / 2 ) -13] *100 / 30 inch = 6,66 % V1: another Version :) V3: fits for feathers with 4 or 5" V4: Optical improvement Print Settings Printer: Flashforge Dreamer Rafts: Doesn't Matter Supports: Doesn't Matter Resolution: 0,20 Infill: 100%
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