GRBL 1.1 And dual axis leveling

has anyone gotten grbl 1.1 dual axis leveling working on either a v3 or v3.51 shield?

im aware that grblDD v3 the developer didnt like the leveling in grbl and rolled their own using the delta between the two motors. however that version seems to throw a bunch of errors regardless of the uno i put it on. it might have something to do with a missing spindle... but i honestly dont know. the code is significantly different than the parent branch. i would like to get to their leveling code and additional debug features... im just missing something. i made some progress on the standard grbl version. using the firmware replication of the x axis... however it seems that my microstepping is off on just that one replicated motor using the that method. havent had time to get to the bottom of that. might be a jumper setting (beyond the obvious). its so hard to come up with any sort of documentation or example for this.

Did anyone manage to get this running?

so i think i managed to get this working.

**without the limit switches in place the motors will travel at two different rates.** that through me for a loop and had me messing with those stepper jumpers to no avail.
with them connected correctly homing self levels the x axis and works pretty well. the one issue i still see if that the hard limit is triggered on the x you end up resetting a couple times to get the travel enough to clear both switches.. i think this is the reason the DD guys worked their algorithm a bit different. in the real world its almost impossible to get those switches to trigger at exactly the same point. close within a couple hundredths ... but not exact and a switch is either on or off.


so the plug configuration on the cnc shield v3 is significantly different from end switches without it.

Z+ switch moves to Z+
X- (1) moves to Z- (im not running a z - switch)
Y +- stays the same.

the Xstep/direction bridge is moved to to (D12 /AStep )/ (D13 / A dir) bottom 4 adjacent to the power block .

in the firmware in config.h you need to uncomment

#define ENABLE_DUAL_AXIS
#define DUAL_AXIS_SELECT X_AXIS
i reduced the
#define DUAL_AXIS_HOMING_FAIL_DISTANCE_MAX
so it wouldnt rack the gantry so hard.

and if you are running cnc shield v3.0 comment
//#define DUAL_AXIS_CONFIG_PROTONEER_V3_51
and uncomment
#define DUAL_AXIS_CONFIG_CNC_SHIELD_CLONE

if you are running the v3.51+ its going to change the pinout i think. i have one ordered but its taking forever to get here so i cant test it at the moment.

hopefully that saves someone 3 nights. of messing and multi-metering .


fyi... keeyees brand uno is complete and total garbage.. if you ever buy one .... as soon as it arrives, hit it with a 3 lbs hammer and go spend the extra 10 bucks to get a real uno. your time and lack of frustration is worth so much more.