Generic external postprocessor with a command line

[gurzixo 0]

Hello,

I am experimenting with speeds and tri-hexagon gradual infills on my printer, and I need to tweak some parameters not available within Cura, namely reduce the speed of the last few infill layers.

It looks like the best solution would be for me to write a post-processor plugin that patches the gcode.

Postprocessor plugins seem to be easy to integrate inside Cura (for example, ZOffsetPlugin is quite readable). Unfortunately, they are written in Python which I do not master, while being quite fluent in C++ & JavaScript.

So, is there a standard universal postprocessor plugin, able to pipe the gcode to stdin of a process and get the patched gcode from the stdout, in the great Unix tradition?

This would allow me to develop this processor in an environment that I am familiar with.

Thanks!

Michel

 

 

[ahoeben 1,955]

The Arcwelder Plugin hands the gcode to an external command-line postprocessor:

https://github.com/fieldOfView/Cura-ArcWelderPlugin

[gurzixo 0]

Thanks @ahoeben for the link.

It looks like with this example and the ZOffsetPlugin, I could try to write something generic.

 

[gurzixo 0]

Problem solved: I adapted the Cura-Slow-Z plugin from @5axes in order to allow having a specific speed for bottom layers infill.

This allows for printing bottom layers at high speed, but top layers at low speed so that the large gaps of tri-hexagon infills are filled correctly.

This is a quick and dirty hack but which makes the job. It is available here