Setting global variable positions... pls god help

Merlin246

Hello,

I am struggling to create global variables for various positions (my application is for the locations for tool pickup/dropoff for an E3D Toolchanger).

Ideally it would be set so when called it would be:

G1 X{T1_ready[0]} Y{T1_ready[1]}

or similar if T1 is reserved for the tool command. However I cannot seem to actually initialize an array. I have tried:

global T1_ready = {81.5, 210}

but keep getting the error:

set global t1_ready = {1, 2}
Error: meta command: expected a global or local variable

I have tried adding braces to various parts of the command (after the variable declaration, etc). I should note that there is currently no variable with the name t1_ready.

I have also tried using the precursor "set" but that throws this error:

So then I tried:

global t1_ready = null;
set global.t1_ready = {1,2};

which produces this error:

What am I doing wrong?

PS: It seems like the documentation is not clear enough on this, some more examples would go a long way for this. Also note that the example in "Global Variable Decleration" is incorrect as it uses

set global.T1heat=0

instead of just:

global  T1heat = 0

This may be a poor example as I think T1heat is already a default global variable. Maybe change the name to something that's not an automatic default?

droftarts

@Merlin246 What version of RepRapFirmware are you using? Arrays have only been supported since RRF 3.5b1.

Ian

Merlin246

@droftarts ahhhh ok that explains it. I'm on 3.4.3.

In the meantime just set single value variables? such as:

global t1_ready_X = 81.5
global t1_ready_y = 210

Is there a way to denote using periods instead? Syntax would be t1.ready.X, t1.pick.X, t1.ready.speed, t1.pick.speed, for example (it would be the class of positions, speeds etc for the tool).

dc42

@Merlin246 said in Setting global variable positions... pls god help:

Is there a way to denote using periods instead?

No.