[Grbl_Esp32 PR#299] Fix: sync internal variables after kinematics_homing

#1 – bdring 于 2019-12-02

Thanks, that fixes a few things I had planned…and more. I will test in the next few days.

I have some changes coming to the midTbot too. They are primarily to fix the feed rate not being the same on X and Y.

#2 – bdring 于 2019-12-02

My images are inverted if I uncomment

“C++
//targetxyz[XAXIS] *= -1.0; // compensate for Polar Coaster's radial axis being mirrored (right side) from normal 0deg
`

`C++
sysposition[ZAXIS] = SERVOZRANGEMAX * settings.stepspermm[ZAXIS]; // Move pen up.
`

to kinematicsprehoming`

#3 – odaki 于 2019-12-02

> My images are inverted if I uncomment
>
> “c++
> //targetxyz[XAXIS] *= -1.0; // compensate for Polar Coaster's radial axis being mirrored
> `
Oh ... My machine may be different from your original.
I commented out again and set $ 3 to 1 (original 2). This worked as intended.
For my machine,
#define DEFAULTDIRECTIONINVERTMASK 2 // uint8t
should be
#define DEFAULTDIRECTIONINVERTMASK 1 // uint8t`

#4 – bdring 于 2019-12-02

I added one more feature. I have M30 at the end of my gcode. This uses it to move the pen to the side to allow coaster removal.

“C++
// handle the M30 command
void user_m30() {
char gcode_line[20];
sprintf(gcodeline, "G53G0X-%3.2f\r", settings.homingpulloff); // go to the homing pulloff location to move pen out of the way
inputBuffer.push(gcode_line);
}
`

...needs #define USEM30` in cpumap.

#5 – bdring 于 2019-12-02

I can push my changes to the PR if you like.

#6 – odaki 于 2019-12-02

> I can push my changes to the PR if you like.

The M30 function is also very useful for me!
Please push the change.

#7 – odaki 于 2019-12-02

> Oh … My machine may be different from your original.
I commented out again and set $ 3 to 1 (original 2). This worked as intended.

I checked the wiring of the motor. I found that the Y motor connection was reversed. After correcting the wiring, it now works properly (commented out the X reverse code).

#8 – bdring 于 2019-12-02

It is easier to push the changes to devt. I’ll do that and close this PR.

Moved the cpumap to polarcoaster.h. I have been doing that when a machine has its own files.

Thanks for all your help!