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langwadt / grbl_stm32

grbl for stm32 with nucleo stepper drivers
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Homing problem with corexy #2

Open VojislavM opened 8 years ago

VojislavM commented 8 years ago

@Andypos you said that you have corexy machine, controlled with Nucleo board. Do you have problem with homing ($H)?

Mine just goes to +x limit switch, then goes back, and goes to +y but never touch switch. I saw that GRBL head problem with homing of corexy, but I think they fix it.

Also, when it is "done" with homing it restarts, prints on terminal: Grbl 1.0c-STM32 ['$' for help] ['$H'|'$X' to unlock]

VojislavM commented 8 years ago

Now it works, I have changed some things in src/grbl/limits.c You can see the changes in this commit: commit :smile:

Andypos commented 8 years ago

@VojislavM Good job :). I do mechanical part ,now. I bulding H-bot ( work like corexy) version. If You change in Arduino CNC sheffild logic for 3.3 V?

VojislavM commented 8 years ago

@Andypos I am not sure what is your question, but I have no problem with Arduino shield and Nucleo 3.3 V logic.

Andypos commented 8 years ago

It is ok ,if do not use analog input. See https://developer.mbed.org/questions/4738/5V-tolerant-pins-on-Nucleo-boards/