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Anycubic Kobra S1 Combo: what it costs to run per hour

A Anycubic Kobra S1 Combo costs about $0.21 per print-hour to operate — machine wear, upkeep and power combined. Far from free, and nowhere near the "$20/hour" folklore. Here is the arithmetic.

Depreciation — $499 over ~4,500 print-hours$0.11
Maintenance consumables (nozzles, belts, plates)~$0.07
Electricity — ~180 W average at $0.18/kWh$0.03
Machine cost per print-hour$0.21

What that means for a real print

A 6-hour print on this machine carries about $1.28 of machine cost before filament. Add a typical 8% failure rate and the machine share rises to roughly $1.39 per successful print — failed prints consume hours too. It's a small line next to filament, postage and your own time, but across a month of selling it's real money, and it belongs in your price.

The assumptions, openly

Lifetime is the debatable one. We assume ~4,500 print-hours for this machine — community estimates for consumer FDM machines run 1,500–5,000 hours, with well-maintained workhorses going far beyond. The 180 W figure is an average draw during printing (not the PSU rating, and not the brief heat-up spike). If your numbers differ, change them — every figure is editable.

Price a print on a Anycubic Kobra S1 Combo →

That link opens the calculator with this printer's price, wattage and lifetime already filled in.

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Figures use the 2026 US average electricity rate ($0.18/kWh) and a $0.07/print-hour maintenance estimate — every assumption is editable in the calculator. Estimates, not accounting advice.