Sanity Check! Tool Offsets: G10 P0 X...

[DocTrucker]

Hi All,

Looking to implement a little meta coding object to repeat a specific pattern a number of times from an offset based on the current head position.

Is the following current best practice for that procedure?

• Read current head position from object model.
• Read current G10 P0 offset from object model.
• Apply appropriate offset to the G10 P0 values to make the current position position X=0, Y=0.
• Run print job with M98 P"build-name.gcode" (Is this any worse than using the specific start build gcode?)
  ...Move head, repeat...

I believe that is better than resetting the position using G92 as it doesn't invalidate any bed probing?

Cheers.

[DocTrucker]

So this is the test macro (that works):

var tool_num = 0

var num_x_pattern = 3
var num_y_pattern = 2

var x_pattern_space = 50.0
var y_pattern_space = 25.0

var int_x = move.axes[0].machinePosition
var int_y = move.axes[1].machinePosition

var initial_x_offset = tools[var.tool_num].offsets[0]
var initial_y_offset = tools[var.tool_num].offsets[0]

while true
	if iterations = (var.num_x_pattern * var.num_y_pattern)
		break
	else
		var x_i = mod(iterations, var.num_x_pattern)
		var y_i = ((iterations-var.x_i)/var.num_x_pattern)
		var x_pos = var.int_x + (var.x_i * var.x_pattern_space)
		var y_pos = var.int_y + (var.y_i * var.y_pattern_space)
		G10 P0 X{(-1 * var.x_pos)} Y{(-1 * var.y_pos)}
		G1 X0 Y0 F6000
		G1 X10 Y10 F600
		continue 

G10 P0 X{(-1 * var.initial_x_offset)} Y{(-1 * var.initial_y_offset)}
G1 X{var.int_x} Y{var.int_y} F6000

I would be replacing the following lines with a call to run a build file:

		G1 X0 Y0 F6000
		G1 X10 Y10 F600

Does this seem the sensible approach?