Different recommendations for X Input Shaping
Ran this command in console:
GENERATE_SHAPER_GRAPHS AXIS=X
The result was this:
Then, I used RatOS interface and ran calibration for X again.
The result was this:
Same command but different recommendations?
6 Replies
You say you ran
GENERATE_SHAPER_GRAPHS AXIS=X
twice, but that can't be right. You must have run SHAPER_CALIBRATE AXIS=X and then GENERATE_SHAPER_GRAPHS AXIS=X.
That's why you're getting different results. SHAPER_CALIBRATE is using the preconfigured v-minion smoothing target of 0.08, which will yield slightly different results given the same resonance.
Furthermore i seem to remember SHAPER_CALIBRATE uses a slightly different algorithm.
Assuming it's the v-minion here.
Also if it is, that is a super low frequency for X. Well, it's a super low frequency for x on all types of printers.
Either your belts are super loose, your axes are swapped or your strapped a brick to your toolhead 😄Nah, the belts were loose, let me pull the new graph...
I applied this for as follows:
Now, when printing a test model (simple empty cube with two walls), Input Shaper seems to work, but there are still two huge bumps right at the beginning.
I'll post a picture tomorrow morning.
And it's still unclear to me how to measure Y with the same ADXL, I know I have to place it on the bed, but do I have to design my own mount? And which orientation should the ADXL be placed in?
Ooh much better! 🙂
It should fit on the belt tensioner
Orientation doesn't really matter, as long as Y is Parallel to X,Y or Z and X is parallel to X, Y or Z, etc etc. Ie. don't mount it at an angle.
If you want you can remap the axes:
Thank you, I looked around but somehow missed the belt tensioner holes. I'll find some time tomorrow to do Y as well, then see what can be done with the bumps on both axes, if they are still there. I will also print the Klipper model.