[Grbl_Esp32 Issue#154] Homing for 2 axis question. About GRBL HAL

Issue #154 | 状态: 已关闭 | 作者: teklaser | 创建时间: 2019-05-28

I have a small 2 axis diode laser that has been working with GRBL1.1 using an Adruino UNO. The homing was setup and has worked well for some time.
I saw the GRBL_ESP32 development come up in a search and I decided to try it out.
I got the same ESP module and set about making an adapter to hold the ESP and the shield that holds the stepper etc. This upgrade process completed OK.
I have compiled the code from the repository as of the 26th May and uploaded it after setting the correct CPU mapping.
I have the HOMING CYCLE set to home both the X and the Y axis at the same time as this is what I had on the UNO.

#define HOMINGCYCLE0 ((1<AXIS)|(1<AXIS))

When I try to home the laser machine, the X moves OK, the Y moves OK, the X backs off by the 5mm I have set for the homing pulloff but the Y does not back off. The system goes into error at that point.
I checked the code and noticed that axis squaring has been introduced so now the homing cycle runs through some extra code because of the new functionality added.
Is this a bug due to the changes for axis squaring or a feature?
Should I separate the homing to use 2 cycles rather than the combined setting?

#1 – bdring 于 2019-05-28

I’ll look into that. It is possible the squaring feature broke that.

Try using separate cycles in the mean time.

#2 – bdring 于 2019-05-28

Found the issues.,

By default #define HOMINGSINGLEAXISCOMMANDS is uncommented in GrblESP32, but not regular Grbl.

That is not allowed with dual axis homing. I did that because I happen to like the single axis homing on my test machine and don’t typically dual axis home.

Comment it out to fix that.

Do you think I should change it to be more like regular Grbl?

#3 – teklaser 于 2019-05-29

I have checked my config.h file and I had commented out that line before I compiled the code that I have used for my testing.
I will now change to 2 separate homing cycles to see how that goes.
I will let you know how that goes.

#4 – teklaser 于 2019-05-30

I have altered the code to use the 2 homing cycles and that has worked OK.
As for your comment about changing the code to be more like regular Grbl, I personally would like to be able to use the original Grbl homing setting for 2 axis machines but I can work around the issue by separating to 2 cycles.

#5 – bdring 于 2019-05-30

I can home X and Y in one cycle on my test machine. Check out the video.

Video

原始Issue: https://github.com/bdring/Grbl_Esp32/issues/154

评论 (5)

Do you think I should change it to be more like regular Grbl?