Conditional Gcode docs

[lyndon]

Hi All are there any docs available for conditional gcode. Object models etc.
At the moment I'm playing with simple IF statement and it's not working as expected. I have

if !move.axes[2].homed
G28 Z
G1 Z8 F3000

Expecting when Z axis is homed the G1 move would operate.
if Z not homed then home the Z axis.

Cheers

[ChrisP]

The code you've posted there has no indentation, so if that's exactly the code you're using, then that's not gonna help. See here: Conditional construct

[lyndon]

Perfect Thank you.

if !move.axes[2].homed
  G28 Z
else
G1 Z8 F3000

Worked

[ChrisP]

FWIW, for that particular example you can omit the else too

[lyndon]

Cheers Chris I have yes.
Thanks to your pointer I have progressed to

if heat.heaters[1].current < 190
	abort "Extruder is cold"
if heat.heaters[0].current < 48
	abort "Heat bed is cold"
if !move.axes[2].homed
	G28 Z

It's part of a simple manual bed leveling macro.
All I need now is a message box with OK..Next..Cancel which would become Repeat... Call next macro.. Cancel. But I think that's for RRF3.02 fingers crossed.

[ChrisP]

Cool.
I'm curious as to what you're trying to achieve with that. Is it just out of interest & experimenting? Otherwise, is there a reason not to use M116 to wait for the heaters?

[lyndon]

It's a simple manual bed leveling macro.
So far I have 3 macros level test1 to 3.
first 1 homes Z then G30 S-1 at that X Y location then moves X Y to right side of bed and does G30 S-1 prompts for OK or Cancel. If result of G30 S-1 matched the result of probe position 1 then I cancel else I adjust the bed screw at that point then hit OK, which repeats G30 S-1 in the same X Y position.

2nd Macro doesn't probe position 1 since I now know the result from previous probing., it moves X Y to the 3rd probe position and then G30 S-1.
I repeat the above as needed calling macro's 1 through 3.
Based on the outcome of a G32 bed level test, I could run 1 or more of the macros again.
The X Y locations match the outer 4 points that G32 probes.

If that makes sence..