I’m printing a rather large and mostly flat part and for the first time have heard and felt a very serious vibration in the bed plate when printing. It doesn’t seem to be related to X/Y position of the head and there are no movements of the bed up and down not even for z-hop when it is printing (most of the time).
Anyone seen this or no where this vibration could be coming from. If I place my hand on the bottom of the bed plate the vibration is pretty severe. If I didn’t know better I’d think it was a bearing in a fan but I don’t know where any fan is attached that could cause such a severe vibration to the bed itself and I’m concerned this vibration is transferring itself into the part.
It just seems to come and go randomly while printing.
Anyone with any ideas?
I’m taking a video and will send to support soon but thought I’d ask here in case someone else has seen the issue.
Maybe clutching at straws, but is the nozzle dragging along the top of the print? May not be any drastic visual sign of it happening depending on what type of infill etc your’e using.
I doubt that would be severe, but in the past I have had this happen and I could hear and feel it in room below my craft room when it hit a specific part of the print where the print had warped slightly.
I hadn’t considered it hitting anything but I haven’t noticed it doing anything to the actual item being printed. I’ve placed my hand on the gantry the head is mounted to and I don’t really feel a vibration there either just in the bed plate but it happens very quickly. It’s most noticeable just touching the bottom of the bed and feeling the vibration. These two videos will give an example of the sound to some extent but it is much louder than the recording would have you believe.
I’ll have to do some experiments with this to see if I can reproduce the sound without the infill but that seems plausible. I’m just surprised I don’t see any artifacts or damage from it hitting. My old printer, which to be fair wasn’t nearly as fast, never did any such thing.
It’s not a Z axis noise, the Z axis should not be moving while the head is printing. This is when the noise is occurring.
That guide is not the answer to all noises…
Thinking about it: When the head is pressing out filament onto a flat surface or over a previously printed sold layer, the head is also being subjected to a back pressure that, in theory, attempts to push the head up. When the filament is being extruded over an infill cell there is no upward pressure on the head.
I can imagine that crossing a large area of infill produces a quick succession of the above and can produce the noise and vibration, particularly if the head is not so rigid, by design, or by something being not as tight as it could be.
