Input Shaping + LIS3DH

[Italiano85]

Good evening everyone,
especially at @DC42

I would like to ask if anyone knows if I can sum two input shaping algorithms

I have a problem with frequencies around 65 hz and i can fix them very well with ei3 but from 25 hz up... below 12 hz i have to decrease the acceleration a lot to get the best results.

The strange thing is that the faster the printer goes, the better it prints... at an average of 250 mm/s the printer shows much fewer defects than at 80 mm/s

[dc42]

@Italiano85 I suspect that those ripples at the low end of the frequency spectrum are artefacts of the measurement process, because it seems unlikely to me that you really would have resonances at such low frequencies and at regular intervals.

What happens if you increase the acceleration, or change the data collection mode to "after the move completes"?

@Italiano85 said in Input Shaping + LIS3DH:

The strange thing is that the faster the printer goes, the better it prints... at an average of 250 mm/s the printer shows much fewer defects than at 80 mm/s

What sort of defects are they? Perhaps they are not related to resonances in your machine, in which case input shaping is unlikely to affect them.