Problems with Home Action

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17 Dec 2012 22:47 #27803 by diegoroman17
Hi everybody,

I have two problems with my CNC Laser. These are small but make my machine look ugly.

First, when I homed my machine it move the axes but stops at certain intervals until the home, why do it?
Second, Sometimes the machine does not give home all axes, the axes move home but the home flag is not changed. Now I have to give the home button a few times to get really achieve in home.

Thanks for help me.

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17 Dec 2012 23:23 #27805 by PCW
Replied by PCW on topic Problems with Home Action
Sounds like an electrical noise problem with your home switch signals.

If it is, you can either filter the noise out

with hardware:
Install a .01 uF capacitor from the home switch signal to GND

or software:
feed the home switch signal(s) through the debounce component in HAL
set to maybe 3 servo cycles
The following user(s) said Thank You: diegoroman17

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18 Dec 2012 02:00 #27810 by diegoroman17
Thanks PCW. My problem was solved with your suggestion. Effectively remove debounce by software and the machine cease to stop and always finds the home. :)

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