I’m curious about the RF noise (electromagnetic interference) generated by the X1 and H2D printers, particularly from their stepper motors. Has anyone measured or experienced RF noise issues, such as interference with Ham Radio, sensors, or nearby electronics? If so, could you share any data or observations?
I’m also interested in how Bambu Lab mitigates RF noise. I’ve read about their Active Motor Noise Cancellation for acoustic noise, which might smooth out motor pulsing and reduce EMI as a byproduct. Does anyone know if this firmware feature (or other techniques like custom drivers, shielded cables, or ferrite beads) is designed to address RF noise specifically? Any technical details or experiences with mitigation methods would be super helpful!
Thanks in advance for any insights or pointers to relevant threads!
It will have passed FCC testing, is there some reason you think it will have more EMI than anything else in your house?
Yeah, it’s got a FCC Part 15 cert. I doubt they did anything particularly fancy to meet the cert’s requirements. Just “best practice”.
The motor noise cancellation doesn’t do anything to reduce EMI/RF. If anything, it might increase it. But the motor drivers are running at pretty low frequencies, nowhere near RF, the only noise sources are going to be FET switching noise and I doubt that generates much RF energy at all.
No relevant threads because this is not a problem anyone has had and needed to discuss. It passed Part 15, they got a number. It’s as good as it needs to be.
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Thanks for your reply, I operate on various frequencies from 500khz-2ghz and have sensitive, receivers in my office, I didn’t see much on my spectrum analyzer, so they seem to be pretty clean. Except a spike around 44mhz, but it’s only when the printer is heating up. I appreciate your response and time.