[Grbl_Esp32 Issue#243] Estop and difference between spindle_enable and spindle

Issue #243 | 状态: 已关闭 | 作者: classbproject | 创建时间: 2019-10-07

I’m making my own PCB since I needed two drivers for my Y-axis. I had a couple of Qs around this.

1. Is there an emergency stop input? If so, how and where would I define this?
2. I see a spindleenable and a spindlepwm output. How does this work? Is there a separate gcode for turning on the pin marked as spindleenable? In the original grbl there is just the spindlePWM output.

#1 – bdring 于 2019-10-07

1. E stop typically cuts all power.
2. Spindle enable is optional. It is often used used with speed controllers that have an input for that. It is in original grbl.

#2 – misan 于 2019-10-07

E-stop might work better in certain setups by blocking the step (and spindle enable)
signals, so steppers would stop ASAP and remain at that location (though this
does not guarantee an instant stop it should stop sooner than without
power, plus it ensures the machine stays at the last location).
Regulations in a given country might, however, call for a different behavior.

原始Issue: https://github.com/bdring/Grbl_Esp32/issues/243

[Grbl_Esp32 Issue#243] Estop and difference between spindle_enable and spindle_pwm

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