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Is 3D Printing safe? Of course that question does not have an easy yes/no answer. In this article we’ll look at several aspects of the safety of 3D printing including the safety of the hardware, the materials used and the 3D printed objects.
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Introduction Is 3D Printing safe? Of course that question does not have an easy yes/no answer. In this article we’ll look at several aspects of the safety of 3D printing including the safety of the hardware, the materials used and the 3D printed objects.
Safety 3D Printers Since 3D printing has become a mainstream technology used across many industries rather than a niche technique for prototypes and highly personalized consumer goods, the safety of 3D printers also has become a topic of discussion.
What makes a 3D printer safe? There are a few things you should keep in mind when researching whether a 3D printer is safe or not. • Electrical safety • Mechanical safety • Risk of burns
Electrical safety When buying a 3D printer, check if the power supply meets all CE mark regulations and is protected against short-circuit, overload, over voltage and over temperature. A nice feature could be that the hot end of the printer contains thermal runaway protection. Last thing which is pretty rare but nice: a smoke sensor that’s separately powered from the machine and which kills all power to the heater when smoke is detected.
Mechanical safety 3D printers contain many moving parts. Fortunately, industry-wide most used NEMA-17 stepper motors do not have enough power to cause serious injuries. Though, in search for a safe 3D printer, please keep in mind that moving gears that are not covered can still form a potential risk. So you might want to limit your search to 3D printers that have a ‘closed’ design.
Risk of burns There is a potential risk of burns, as the print head of most 3D printers can reach temperatures of up to 280°C and the heated bed of up to 120°C. A 3D printer is regarded safe when contact with the nozzle is prevented by surrounding it with for instance an aluminum cover. You can also get burns from touching a heated bed. Therefore, a 3D printer with a heated bed needs to have a closed environment.
Safety 3D Printing Materials ABS once was the most popular 3D printing material. Engineers love it for its strength and designers like it cause it’s easily publishable with acetone. Its popularity is lately decreasing due to studies that have shown that the fumes that are released while printing are possibly carcinogenic. But are there no other options? Of course, you can use PLA. PLA is a bioplastic and is considered to be the safest 3D printing material.
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