Comments (5)
Hi @richfelker
I'm not aware of how this works?
Best regards,
Lasse
from klipper_estimator.
See https://github.com/Piezoid/klipper/blob/work-peraxis/klippy/kinematics/limited_cartesian.py
The idea is that if one is using acceleration limits to control toolpath deviation/ringing/etc., the per-axis limits reflect differences in mass or stiffness of the axes. For example, if Y deviates ~4x as badly as X for a given acceleration, it's desirable to have Y acceleration 25% of X acceleration, but setting a low absolute limit on Y acceleration would cost a lot in print time for no benefit when you really only care about the deviation on outer walls. Having the Y accel limit scale as a % of M204 acceleration rather than being an absolute limit handles this in a continuous way and is also likely to represent the scaling of acceleration before steps are missed at very high M204 accel, too.
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Hi @richfelker
Okay I think I understand. This shouldn't be too difficult to do, I'll take a look. I'm thinking of adding a scaled version of the current axis limiter to cover this use case.
I'll post a PR you can test out when I have it done.
Best regards,
Lasse
from klipper_estimator.
Hey @richfelker
I've taken a stab at this, please check the https://github.com/Annex-Engineering/klipper_estimator/tree/limited_kinematics branch.
I currently have no working printer, so testing this is a bit annoying. Hopefully you and Piezo can test it out for me :-)
Best regards,
Lasse
from klipper_estimator.
Note that the SCV fix (76ba4bee) is not implemented, as there is no way to detect if users have it from the config.
Possible solutions:
- Add a config option to toggle the fix. It must be disabled by default to assure that it is enabled if and only if the config say so. Also supporting both modes will increase the code complexity.
- Assume that every user of
limited_
kinematics have the SCV fix, update install instructions to reflect that. But then, I won't be able to support beacon/z_calibration style install if the changes to klippy code are no longer optional. - Upstream it, since it shouldn't change the behavior outside of the use of
limited_
kinematics. It won't be easy to find good arguments for a change intended to support external, unsuported code.
from klipper_estimator.
Related Issues (20)
- Display Popup Window with Estimate after Slicing/Export / Possible bug in layer time output HOT 1
- Increasing acceleration beyond machine's max acceleration still decreases the estimate of time taken to print HOT 2
- Issue with Release Version of Estimator Hanging when Piped in Command Line HOT 1
- Installation HOT 3
- Windows exe doesnt start HOT 2
- Error on 'M73 P0.000 R46': unable to parse 0.000 HOT 5
- max_accel_to_decel has been removed in newest klipper versions HOT 3
- Microsoft Defender says: Trojan:Win32/Wacatac.B!ml HOT 2
- Wrong max_accel_to_decel calculation in v3.7.x HOT 2
- [Feature request] Add support for object exclusions
- Won't open on windows 11 HOT 1
- incorrect estimate result HOT 1
- Estimated print time off by a lot/seemingly random amounts HOT 9
- override minimum_cruise_ratio some times HOT 2
- Add ability to pass total print time in seconds via gcode placeholder
- post-process doesn't seem to work. HOT 6
- How to EXTRACT dump-moves informations into an external file HOT 2
- Support for the acceleration change set by orcaslicer with Emit Limits in G-Code option HOT 5
- square_corner_velocity does not appear to be factored into calculations HOT 1
- Klipper_Estimator for RRF gcode files?
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