bissen21/Marlin_Firmware
1
0
Fork 0
Code Issues Pull Requests Projects Releases 4 Wiki Activity

New Feature: Z_DUAL_ENDSTOPS

Browse Source 
Z_DUAL_ENDSTOPS is a feature to enable the use of 2 endstops for both Z
steppers - Let's call them Z stepper and Z2 stepper.
That way the machine is capable to align the bed during home, since both
Z steppers are homed.
There is also an implementation of M666 (software endstops adjustment)
to this feature.
After Z homing, this adjustment is applied to just one of the steppers
in order to align the bed.
One just need to home the Z axis and measure the distance difference
between both Z axis and apply the math: Z adjust = Z - Z2.
If the Z stepper axis is closer to the bed, the measure Z > Z2 (yes, it
is.. think about it) and the Z adjust would be positive.
Play a little bit with small adjustments (0.5mm) and check the
behaviour.
The M119 (endstops report) will start reporting the Z2 Endstop as well.
This commit is contained in:
alexborro
2015-03-24 14:06:44 -03:00
parent 512a0056a9
commit 0ce3576685
8 changed files with 228 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
Marlin/Configuration_adv.h
View File

@ -98,7 +98,32 @@
// Only a few motherboards support this, like RAMPS, which have dual extruder support (the 2nd, often unused, extruder driver is used
// to control the 2nd Z axis stepper motor). The pins are currently only defined for a RAMPS motherboards.
// On a RAMPS (or other 5 driver) motherboard, using this feature will limit you to using 1 extruder.
//#define Z_DUAL_STEPPER_DRIVERS
#define Z_DUAL_STEPPER_DRIVERS
#ifdef Z_DUAL_STEPPER_DRIVERS
// Z_DUAL_ENDSTOPS is a feature to enable the use of 2 endstops for both Z steppers - Let's call them Z stepper and Z2 stepper.
// That way the machine is capable to align the bed during home, since both Z steppers are homed.
// There is also an implementation of M666 (software endstops adjustment) to this feature.
// After Z homing, this adjustment is applied to just one of the steppers in order to align the bed.
// One just need to home the Z axis and measure the distance difference between both Z axis and apply the math: Z adjust = Z - Z2.
// If the Z stepper axis is closer to the bed, the measure Z > Z2 (yes, it is.. think about it) and the Z adjust would be positive.
// Play a little bit with small adjustments (0.5mm) and check the behaviour.
// The M119 (endstops report) will start reporting the Z2 Endstop as well.
#define Z_DUAL_ENDSTOPS
#ifdef Z_DUAL_ENDSTOPS
#define Z2_STEP_PIN E2_STEP_PIN // Stepper to be used to Z2 axis.
#define Z2_DIR_PIN E2_DIR_PIN
#define Z2_ENABLE_PIN E2_ENABLE_PIN
#define Z2_MAX_PIN 36 //Endstop used for Z2 axis. In this case I'm using XMAX in a Rumba Board (pin 36)
const bool Z2_MAX_ENDSTOP_INVERTING = false;
#define DISABLE_XMAX_ENDSTOP //Better to disable the XMAX to avoid conflict. Just rename "XMAX_ENDSTOP" by the endstop you are using for Z2 axis.
#endif
#endif
// Same again but for Y Axis.
//#define Y_DUAL_STEPPER_DRIVERS