Wobbly desk helps?
I read an article online stating that a slightly wobbly desk that can soak up some vibration actually helps with 3D printing and print quality, just like using the printer with rubber squash ball feet etc. Will post the article if I can find it again - although can this be true?
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RE: Wobbly desk helps?
I just can’t see how this would be of any benefit, especially with input shaper?
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RE:
So it sounds like the theory is that a wobbly desk would serve as a vibration damper.
A wobbly desk would have it’s own “vibration frequency” and to the degree to which the printer’s vibration conflicts with that frequency it MIGHT profile some benefit.
BUT if the printer is doing something in harmony with the wobbly desk’s vibration frequency, the desk would actually amplify the printer’s vibrations, which would make things worse, and potentially MUCH worse.
Also the wobbly desk is wobbly by defect, not by design. Whatever is making it wobbly is probably progressing toward some sort of material failure.
Anyway I am not a mechanical engineer, but it seems to me you can’t fix one wobble with a different wobble. Just like two wrongs don’t make a right, you need an actual vibration damper.
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RE: Wobbly desk helps?
I was printing on an old Lack table that was comically wobbly, with Alpha 4. No issues and no quality problems. I swapped to a heavier desk that has almost zero movement. No change in quality. I don't think it mattered either way.