Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: X3R0 on March 23, 2019, 10:28:27 AM
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Hey guys, I'm onto my third CNC build, first mill.
I sometimes have a need to pause the operation. It's not a full Estop issue, just a momentary pause, for example if I have chips in the drilled hole that need a little more time to clear out before tapping.
My problem is that the pause button (OEM 1003) is very abrupt and the potential of losing a step is high. Is there a way to set the pause function to be more gradual, instead of a hard stop, set it to be a quick decel to stop?
My Mill CNC , for now, is a drill operation that trams over to a tapping head. I have 1600 drill/tap operations and building CNC was just faster than doing them manually.
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You should use Feed Hold (OEM1001) then Stop (OEM1003) - it will take a little longer to stop but you will not loose steps.
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"for example if I have chips in the drilled hole that need a little more time to clear out before tapping"
In system config | General config under Tool Change select "stop spindle and wait for cycle start".
You could put in T# M6 tool change in your gcode file to change from drill bit to tab bit.
Before you [cycle start] after changing tool, - you can clear the chips in the drill hole.
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As Tweakie says, Stop stops the machine instantly, with no deceleration. You should always use Feedhold before using Stop, unless it's an emergency.