G29 pause before probe move

A Former User

Hi,
What I assume G29 does is
get a list of points to test and for each point

go to point in XY
probe Z
return to the previous Z position

I'm trying to use andromeda as a probe and since it's underneath the bed I need to configure the trigger to be very sensitive or it does not work. Problem I'm having is that cause trigger is sensitive it triggers on XY move so what I need is to have something like

foreach (pont){
  G0X$xY$y
  G4S1
  G30
}

this way the pause before probe allow sensor to "calm down" so that it properly detect the touch.

For e.g. I did this to my homez.g to get it to properly home:

; HOME Z WITH ANDROMEDA
T0
G91
G0 Z5 F900  H2
G90
G0 X0Y0 F3000
G4S3
G30
G90

ideally, G29 can get same parameter as G4 (S for seconds P for milliseconds) only named differently as S and P are already used by G29 to modify how long the delay before probe move is executed.

dc42

The M558 R parameter is provided for this purpose.

A Former User

hm, this looks like delay after it's triggered, not before the move is executed...

Z probe recovery time after triggering, default zero

anyhow, will test now .. weird I was sure that parameter exist but was not able to find it, jumping between 3 and 2 is ... at least they are now both on same page .. thanks

A Former User

WORKS thanks!

dc42

Thanks, I've updated the description of the M558 R parameter.

A Former User

great, thanks, looks like I'll have to figure out another way as andromeda is too unstable ..