basic question on how to add a feature

I am building a cnc plasma table on casters that will be used as a workbench when not cutting. I plan to roll it into the driveway when cutting and wanted to add a spray bar underneath to reduce sparks and was wondering if linuxcnc can be used to control a solenoid or would it be easier to use and arduino with hall sensor near the ground cable to turn on the water for 1 sec every 10 to 15 sec.

7sharp wrote: was wondering if linuxcnc can be used to control a solenoid or would it be easier to use and arduino with hall sensor near the ground cable to turn on the water for 1 sec every 10 to 15 sec.

Yes and no :
Yes Linuxcnc can control solenoids with the help of some very simple electronic or ready made relay boards,
No arduino would be much more complicated for that, but you can use various arduino relay boards and control them from Linuxcnc.

What interface hardware do you plan to use?

Many of the cheap BoB have a relay, you could use that to operate a solenoid valve.

There are lots of solid-state relay boards on eBay that can amplify GPIO or parallel port outputs, and some interface cards (like the Mesa 7i64) can operate solenoid valves directly.