Tip:
When calculating UPS capacity, use the peak usage numbers from the table below so your printers stay on during a blackout even when drawing maximum power.
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Choosing an Uninterruptible Power Supply (UPS) for your Formlabs printer
Choosing an Uninterruptible Power Supply (UPS) for your Formlabs printer
Formlabs 3D printers require power throughout a print. If power is lost or interrupted, any prints in progress cannot be resumed and the print will fail. Some printers are more sensitive to power fluctuations and signal cleanliness than others. As a result, Formlabs recommends customers purchase an uninterruptible power supply (UPS) to ensure that their prints do not fail due to power issues.
When choosing a UPS, consider how many printers you are planning to run with it and how long you want it to last in the event of a power outage. Use a UPS runtime calculator like this one to see how much capacity your UPS needs in order to power your printers for a certain period of time.
Pure sine wave
Some electronics require pure sine wave output from a UPS. Usually, a UPS that offers this is more expensive.
| Printer | Pure sine wave output |
|---|---|
| Form 2 | Not required |
| Form 3 generation | Not required |
| Form 3L generation | Not required |
| Form 4 generation | Not required |
| Form 4L generation | Not required |
| Fuse 1 generation* | Required |
* For specific recommendations, read Formlabs approved distributors for supplies (SLS).
Estimated power requirements
| Printer | Normal usage | Peak usage |
|---|---|---|
| Form 2 | 50 W | 100 W |
| Form 3 generation | 100 W | 200 W |
| Form 3L generation | 400 W | 600 W |
| Form 4 generation | 150–250 W | 480 W |
| Form 4L generation | 250–350 W | 900 W |
| Fuse 1 generation* | 700 W | 1650 W |
* For specific recommendations, read Formlabs approved distributors for supplies (SLS).