3D print cost calculator
What did the parts you kept cost to make? Include failed attempts and waste, then divide by the number of usable parts.
Replace the example figures with your own. You can include calibration separately; leave it out if you are calculating the cost of a routine repeat print. The worked example explains the arithmetic.
Material + electricityOperating cost per accepted set
This covers material and electricity, not labour, the printer purchase or maintenance. The starting figures are an example you can change.