Air Scribe with PlasmaC

phillc54 wrote:

Edit: You could still use M5 for the end of both as that will stop all spindles.

rodw wrote:

thefabricator03 wrote:

This is where I dont really understand, If we are using multiple spindles does that mean that the G-code commands for the plasma torch wont apply if we have spindle 1 selected? Do we have to define spindle 0 as the plasma torch or is it already set up?

Well my take on this is that each spindle has its own spindle.n.on signal and we use spindle 0 to trigger the torch (using spindle.0.on)
We are currently treating our machines as single spindle machines. But I think if you did gcode like this (and I'm no expert with gcode)

(set a spindle speed on all spindles to keep Linuxcnc happy)
S100 $0
S100 $1

(Cut something)
T1 M6 (select plasma tool - x, y offsets  = 0,0)
M3 $0 (use plasma)
...( cut some stuff)
M5 $0
Go x1,y1 (go somewhere else)
M3 $0 (use plasma and enable plasmac via spindle.0.on)
...( cut some more stuff)
M5 $0
(Engrave something)
T2 M6 (select scribe and set offsets and enable scribe via spindle.1.on)
M3 $1 (use engraver)
.... (engrave some stuff)
M5 $1
G0 x2,y2 (go somewhere else)
M3 $1 (use engraver)
.... (engrave some more stuff)
M5 $1

When you see how clean that code is, it does not really make sense to muddy it by adding a second signal to lower the torch. Sure that might happen but it should be done behind the scenes they way Plasmac does it. Plus you could have a whole row of tools up there. I did see Grotius post a pic with a drill bolted onto his gantry once.

thefabricator03 wrote:

I would like to set up that the scribe lower setting is turned on then after X amount of time the scribe it turned on then motion starts. I am assuming this also done in the Hal.

loadrt timedelay
addf timedelay.0 servo-thread
setp timedelay.0.delay-on 0.5

net spindle-1-on  <= spindle.1.on
net spindle-1-on => my_7i76e-lower-output
net spindle-1-on => timedelay.0.in
net delayout <= timedelay.0.out 
net delayout => my_7i76e-scribeon-output
net delayout => spindle.1.at-speed

rodw wrote:

thefabricator03 wrote:

I would like to set up that the scribe lower setting is turned on then after X amount of time the scribe it turned on then motion starts. I am assuming this also done in the Hal.

Maybe sometihng like this.

loadrt timedelay
addf timedelay.0 servo-thread
setp timedelay.0.delay-on 0.5

net spindle-1-on  <= spindle.1.on
net spindle-1-on => my_7i76e-lower-output
net spindle-1-on => timedelay.0.in
net delayout <= timedelay.0.out 
net delayout => my_7i76e-scribeon-output
net delayout => spindle.1.at-speed