Bed probing and Print area Placeholders

[PicoTreed]

Hi all,
my printer has a really big bed and often I just need to print small object on different bed areas. So an high-definition probing (with a BLTouch) on the whole bed area can result in a useless and really time consuming activity.

So I'm looking for a way to probe, before each print, only the bed area affected by the print itself.
To obtain this result I need to set the probing grid in the GCode "starting script" using a dynamically composed M557 command, but at this stage I also need some sort of Simplify3D variables in order to "know" the maximum and the minimum X and Y value used in the print process.

Ideally I would obtain something like:

Code: Select all

M557 X[min_x]:[max_x] Y[min_y]:[max_y]

Does Simplify3D provide this kind of placeholders or is obtaining this goal a wild-goose chase?

Thank you!
Luke

P.S. = I'm using Simplify3D v. 4.1.1

[S3D-Chris]

The variables for build min and max are currently only available in the terminal commands for post processing section of the Scripts Tab. They are listed below:

[build_min_x] [build_min_y] [build_min_z]
[build_max_x] [build_max_y] [build_max_z]

[PicoTreed]

Thank you so much Chris!
I have one additional question: how to do some simple math in the terminal commands for post processing section of the Scripts Tab?

Ideally I would need something like:
{REPLACE "A" "([build_max_x] - [build_min_x]) /2)"}

Or something like:
[custom_variable] = (([build_max_x] - [build_min_x]) / 2)
{REPLACE "A" "[custom_variable]"}

Luke

[S3D-Jake]

Thank you so much Chris!
I have one additional question: how to do some simple math in the terminal commands for post processing section of the Scripts Tab?

Ideally I would need something like:
{REPLACE "A" "([build_max_x] - [build_min_x]) /2)"}

Or something like:
[custom_variable] = (([build_max_x] - [build_min_x]) / 2)
{REPLACE "A" "[custom_variable]"}

Luke

We currently do not have a function for performing math operations in the post processing script area. If you would like to call an external script you can certainly include some math fairly quickly.