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dunnitagain
dunnitagain

23 Jul 2025 23:35

Replied by dunnitagain on topic Linuxcnc 2.4.5 with Ubuntu 10.04, Correct file path or structure ?

Linuxcnc 2.4.5 with Ubuntu 10.04, Correct file path or structure ?

Category: General LinuxCNC Questions

There is nothing on the Hard Drive except Ubuntu

pippin88
pippin88

23 Jul 2025 22:28

Replied by pippin88 on topic How to control brake before moving ?

How to control brake before moving ?

Category: HAL

Why do you need to control the brake like this?

Stepper motors have full torque at 0rpm. If the stepper is powered you should not need the brake. Brake should be turned off when the CNC is powered on, then brake should reactivate when CNC is powered down.

Or is this a brake for 4th axis machining?

Brakes integrated into steppers or servos are not designed to be used for machining, they are jus to hold axis position when the motor is off. Usually to stop Z axis falling under gravity.