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Re: Grounded Experimental Delta Printer

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nicholas.seward Wrote:

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General engineering wisdom is to use one or more of the following techniques.

*Increase mass: This lowers the natural frequencies and reduces the amplitude of vibrations.
*Increase damping: This can remove vibrational modes altogether and will reduce the amplitude of those remaining.
*Passively Isolate: This is really just a specialized form of increasing mass and adding damping.
*Actively Isolate: As far as I know, no one has come up with a cost effective way to use an active control system to mitigate vibrations in a production machine. However, this has the potential to allowing a light, low friction machine to do unusual things like mill metal. However, however, the processing power needed to run a system like this would be outrageous along with the fact that reaction time needs to be a fraction of the period of the oscillation that you are mitigating. Assuming the hardware existed, the software would still have to be written. Hopefully, this will be an option someday.

As you can imagine that using any of the first three ways will reduce speed and/or increase motion control costs.

I don't know programing, but there's a thing called Parallella that look interesting :
[www.parallella.org]

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