For most hobbyist desktop 3D printers, electricity consumption is relatively low and generally comparable to or less than that of a modern TV or a desktop computer.
Typical Power Consumption
Consumption
The amount of electricity a 3D printer uses depends largely on the type of technology and the settings used for a specific print.
Desktop FDM Printers: These are the most common hobbyist machines. During regular operation, they typically draw between 50 and 250
Small-to-medium models often stay within the 50 to 150-watt range.
Resin (MSLA/DLP) Printers: These generally consume less power than FDM printers, typically ranging from 30 to 150 watts.
Industrial/Specialized Printers: Large-format or high-temperature industrial printers (such as SLS, DMLS, or SLM) are much more power-intensive, potentially drawing anywhere from 1,000 to 10,000 watts depending on the heating requirements and laser systems.
Key Factors Affecting Energy Use
Heating Elements: The nozzle and the heated bed are the primary power consumers. While heating up (preheating) causes a power spike, the average draw drops significantly once the printer is at temperature and simply maintaining it.
Print Settings: Printing with high-temperature materials (like ABS or Nylon) requires higher bed and chamber temperatures, which increases the average wattage compared to printing cooler materials like PLA.
Duration: Because 3D printing is a slow, gradual process, the total energy consumed depends on the length of the print job.
Cost Calculation
To estimate your specific cost, you can use the following formula:
Hourly Cost = (Average Wattage ÷ 1,000) × Local Electricity Rate per kWh.
For most home users, running a 3D printer typically costs between R0.20 and R0.90 per hour. Compared to high-power household appliances like microwaves (~1,200W) or space heaters (~1,500W), the energy footprint of a standard 3D printer is modest and rarely becomes a significant line item on a utility bill.
To wrap it all up, the electricity usage of a standard 3D printer is quite modest, typically costing only a few cents per hour in Rand terms. While there are minor differences depending on your material choice and printer type, it is far more energy-efficient than most common household appliances.
Knowing these numbers can help you feel confident about running long prints without worrying about your utility bill!
