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Prusa MK4S electricity cost per hour

What a Prusa MK4S costs to run per hour on PLA and ABS, from Prusa's stated power consumption, with a worked quote for a 5-hour ABS bracket.

What it draws

Average while printing PLA80 WPrusa
Average while printing ABS120 WPrusa

The maker’s own measurements. The maximum is what the power supply can pull while the bed heats; the bill sees the average.

What an hour on it costs

Electricity, PLA$0.015
Electricity, ABS$0.022
Wear and upkeep at $999Prusa$0.209

Electricity at the US residential average of 18.16¢ per kWh.EIA Wear spreads the list price over 6,000 hours of life; upkeep is $180 a year over 4,200 hours run. Both are assumptions you can change in the cost calculator.

From Prusa Research

  • Prusa sells the MK4S assembled for $999 or as a kit for $709, and the kit's lower price lowers the wear line of every quote on it.Prusa
  • The MK4S runs on a 240 W power supply made for Prusa by Delta, with Power Panic hardware built in.Prusa

A worked quote: Bracket · ABS

120 g of ABS, 5 hours on the machine, single colour, on ABS (refill) at $15.99 for 1000 gBambu Lab store, sold on Etsy.

Filament$1.92
Electricity at 120 W$0.11
Machine wear and upkeep$1.05
Your time, 25 min at $28 an hour$11.67
Consumables$0.80
Failed-print reserve at 6%$0.23
What it costs you$15.77
Price at 60% markup$25.24
Etsy takes, at the app's starting estimate$2.85
You keep$6.62

The Etsy line is the app’s preset of 9.5% plus $0.45, a starting value rather than Etsy’s live schedule. Change any of it in the cost calculator or the electricity calculator.

Materials it has a measured draw for

Compare the Prusa MK4S

Other printers

Keep these numbers for every print

Printyard runs this arithmetic on your phone at the machine and on the web: every quote itemised, every roll to the gram, and a month with the fees and the failed prints already taken out.

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Sources