filament-drybox-cost/data/assumptions.json

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{
"currency": "USD",
"waste_factor": 1.15,
"electricity_cost_per_kwh": 0.12,
"printer_average_watts": 120,
"print_hours_per_box": 8.0,
"target_box_counts": [1, 4, 12],
"printed_materials": [
{
"id": "petg",
"name": "PETG",
"cost_per_kg": 22.00,
"grams_per_box": 220
},
{
"id": "asa",
"name": "ASA",
"cost_per_kg": 28.00,
"grams_per_box": 90
},
{
"id": "tpu",
"name": "TPU",
"cost_per_kg": 26.00,
"grams_per_box": 20
}
],
"notes": [
"Printed weights are initial estimates and should later be replaced with slicer-derived actuals.",
"Waste factor is applied to printed material cost only.",
"Electricity uses printer_average_watts multiplied by print_hours_per_box."
]
}