Firmware2/Marlin
Scott Lahteine 3bba7d60f3 No retroactive changes with M851 Z
If using babystep to adjust the Z probe offset, the axis will move and the mesh will be updated at the same time, causing a doubling of the Z offset over the rest of the print.

To correct for this, the current Z position would need to be modified in the opposite direction, canceling out the additional Z offset added to the mesh. This would be confusing to users, and moreover it would not be accurate without also taking the current Z fade level and current Z height into account.

It might make sense to change the mesh in the case where no babystepping is taking place, but this could be considered an undesirable side-effect of changing the `zprobe_zoffset`.

One way to remedy this would be to return to storing the mesh with `zprobe_zoffset` included, then subtracting `zprobe_zoffset` from the returned Z value. Thus, a babystep moving the Z axis up 1mm would subtract 1 from `zprobe_zoffset` while adding 1 to all mesh Z values.

Without including the `zprobe_zoffset` in the `z_values` there is no safe way to alter the mesh in conjunction with babystepping, although it's fine without it.
2017-11-18 03:36:39 -06:00
..
lib Module updates 2017-09-21 16:26:42 -05:00
src No retroactive changes with M851 Z 2017-11-18 03:36:39 -06:00
Configuration_adv.h Merge pull request #8416 from thinkyhead/bf2_M114_DETAIL 2017-11-14 00:28:55 -06:00
Configuration.h Move Filament Width Sensor to Configuration_adv.h 2017-11-13 21:05:57 -06:00
Marlin.ino [2.0.x] UltiMachine Archim2 (#8190) 2017-11-03 04:48:15 -05:00
README.h Add a README.h file for Arduino IDE users 2017-10-11 18:10:15 -05:00

/*
================================================================================

  Marlin Firmware

  (c) 2011-2017 MarlinFirmware
  Portions of Marlin are (c) by their respective authors.
  All code complies with GPLv2 and/or GPLv3

================================================================================

Greetings! Thank you for choosing Marlin 2 as your 3D printer firmware.

To configure Marlin you must edit Configuration.h and Configuration_adv.h
located in the root 'Marlin' folder. Check the config/examples folder to see if
there's a more suitable starting-point for your specific hardware.

Before diving in, we recommend the following essential links:

Marlin Firmware Official Website

  - http://marlinfw.org/
    The official Marlin Firmware website contains the most up-to-date
    documentation. Contributions are always welcome!

Configuration

  - https://www.youtube.com/watch?v=3gwWVFtdg-4
    A good 20-minute overview of Marlin configuration by Tom Sanladerer.
    (Applies to Marlin 1.0.x, so Jerk and Acceleration should be halved.)
    Also... https://www.google.com/search?tbs=vid%3A1&q=configure+marlin

  - http://marlinfw.org/docs/configuration/configuration.html
    Marlin's configuration options are explained in more detail here.

Getting Help

  - http://forums.reprap.org/list.php?415
    The Marlin Discussion Forum is a great place to get help from other Marlin
    users who may have experienced similar issues to your own.

  - https://github.com/MarlinFirmware/Marlin/issues
    With a free GitHub account you can provide us with feedback, bug reports,
    and feature requests via the Marlin Issue Queue.

Contributing

  - http://marlinfw.org/docs/development/contributing.html
    If you'd like to contribute to Marlin, read this first!

  - http://marlinfw.org/docs/development/coding_standards.html
    Before submitting code get to know the Coding Standards.
*/