Limit and Home Switch Choice

[EddyCurrent]

Eddy don't do that has when you "Feedhold" you won't want the spindle to stop spinning. It could still be in the material which would cause tool damage.
Also When you release "Feedhold" Mach won't start the Spindle without an M3 command or OEM code to turn it back on and if you "Feedhold" chances are your in the middle of a job and just want to pause for something like clearing chips etc. . . That's the point of "Feedhold" it's not to be used for Emergency or any Safety feature.

I never suggested using it for Emergency or safety use. Regarding leaving spindle turning, I can make it do that, thanks.

Feedhold is not for this purpose and shouldn't be used has such IMO. In Mach's case it also doesn't stop instantly either has it has to clear the Look-ahead buffer first so can't be relied upon to stop quickly.

I'm only using FeedHold from a pause pushbutton and the spindle overtemp so that I can carry on again after assessing the situation, I saw it carries on a while depending on the look-ahead setting. All of these features are easily 'shorted out' in the panel if they become a problem later on.

[JAZZCNC]

I'm only using FeedHold from a pause pushbutton and the spindle overtemp so that I can carry on again after assessing the situation, I saw it carries on a while depending on the look-ahead setting. All of these features are easily 'shorted out' in the panel if they become a problem later on.

Can tell you 100% It will be a problem from day one if your relying on "feed hold" to stop Instantly because it doesn't. Even with Motion control Card that can process the Code much faster so use lower Lookahead than Mach's PP driver you can't get "feed hold" to stop instantly without losing Steps and that's the whole point of "feed hold" Otherwise you may has well just E-stop and presume lost position.!!

[EddyCurrent]

Can tell you 100% It will be a problem from day one if your relying on "feed hold" to stop Instantly because it doesn't. Even with Motion control Card that can process the Code much faster so use lower Lookahead than Mach's PP driver you can't get "feed hold" to stop instantly without losing Steps and that's the whole point of "feed hold" Otherwise you may has well just E-stop and presume lost position.!!

I don't understand why you think I'm wanting it to stop instantly, I know that is doesn't and that's fine because it's not part of any emergency or safety requirement.

[JAZZCNC]

I don't understand why you think I'm wanting it to stop instantly, I know that is doesn't and that's fine because it's not part of any emergency or safety requirement.

Don't know myself if being honest. . Lol . . . . Just thought you did from some of the other posts.!! . . . Anyway Crack on and I'll keep Stum in future.!!