X-Git-Url: https://git.hcoop.net/clinton/Smoothieware.git/blobdiff_plain/2930942d7d22e9fd54663e8069049f67a77472f6..refs/remotes/origin/new_config:/upgrade-notes.md

diff --git a/upgrade-notes.md b/upgrade-notes.md
index b51b593b..56eff7dc 100644
--- a/upgrade-notes.md
+++ b/upgrade-notes.md
@@ -3,15 +3,35 @@ To upgrade from master or edge to the new motion control firmware
 
 The following changes must be made to your config
 
-1. alpha_max, beta_max, gamma_max must be correctly defined for homing to work properly even when homing to min
-   they control the maximum distance the axis will move before it gives up finding the home switch.
+1. ```alpha_max_travel, beta_max_travel, gamma_max_travel``` must be correctly defined for homing to work properly
+   they control the maximum distance the axis will move before it gives up finding the home switch. They are currently set to ```alpha_max, beta_max and Gamma_max``` (or 500) if not found in the config file.
+NOTE on a delta this needs to be the total hieght (or greater) than yur towers NOT the same as gamma_max.
 
 2. it is best to start from a fresh config
-3. you must delete the config-override (M502) as M203 format has changed (M203 sets cartesian max speeds, M203.1 sets actuator max speeds, no longer uses ABC as these are now reserved for future n-axis)
+
+3. you must delete the config-override (M502) as M203 format has changed (M203 sets cartesian max speeds, M203.1 sets actuator max speeds, no longer uses ABC as these are now reserved for future n-axis). (or for a short while just do M500 as the  A B C will be read until it is deprecated, and M500 will save it in the new format)
 
 4. Homing is slightly different, by default it will home X and Y axis at the same time then Z, this can be reversed and have Z home first then X and Y.
    the homing_order setting still works the same way as before.
 
+5. The old extruder syntax is no longer allowed so check your config has the latest extruder config like
+   ```
+   extruder.hotend.enable                          true             # Whether to activate the extruder module at all. All configuration is ignored if false
+   extruder.hotend.steps_per_mm                    710              # Steps per mm for extruder stepper
+   extruder.hotend.default_feed_rate               600              # Default rate ( mm/minute ) for moves where only the extruder moves
+   etc
+   ```
+   
+   and not the old
+   
+   ```
+   extruder_module_enable                       true
+   ```
+
+6. If you use volumetric extrusion (M200 D2.85) then note that unlike the current edge, G1 E5 will extrude 5mm³ not 5mm. Note that in slic3r there is now a smootheware flavor you need to select for gcode generation, which fixes an issue with firmware retract.
+
+7. if you have configured more than 2 extruders you will need to recompile and set ```MAX_ROBOT_ACTUATORS``` accordingly.. https://github.com/Smoothieware/Smoothieware/blob/edge/src/modules/robot/ActuatorCoordinates.h#L17
+
 The following changes must be made to your hardware
 ---------------------------------------------------