Macro variables

kuhnikuehnast

Hi there,
at the moment, I am installing a Nozzle clean adapter. To write the macro I have some questions:

Is there a possibility to implement a variable like "for i = 1 to 5 do" (so I wouldn't have to paste the code to brush the nozzle 5 times)
Is it possible to enter variables with a feedback window? (As I use different print surfaces and the brush is mounted to the frame, I could implement a popup window with a question how thick the used print surface is. So the Nozzle would be always brushed at the same Z-height)
If 2 is impossible so is it possible to deliver the variable (e.g. thickness of print surface) when I call the macro? (Like M98 Clean_Nozzle.g X# (where # is the thickness)
Is there any option to calculate in macros? (e.g. G1 X10 Y10 Z0.5+4)?

Hope, you can help me

greetings kuhni

dc42

Currently there is no facility use variables, loops or conditions in the GCode supported by RepRapFirmware. This is on my list to look at. I haven't yet found any other implementation that does it in a nice way.

resam

@dc42 are you aware of http://linuxcnc.org/docs/2.7/html/gcode/overview.html#_parameters and https://ws680.nist.gov/publication/get_pdf.cfm?pub_id=823374 (Section 3.2.1)?

dc42

Yes I am aware of the standard NIST parameters. What I am not aware of is an existing nice implementation of conditional execution or loops. The NIST numbered variable are rather horrible and although I may support them for CNC compatibility, users deserve something better.