newbie question - re repeating settings??

[JanF]

Hi I am an (older LOLS) Aussie girl and VERY new to 3D printing, but have recently successfully put together a Geeetech Prusa i3 kit. However I have really had to research every step of the way and finally, after about a month, I have been getting some fairly good prints. HOWEVER, the best print I am getting is from one of the first STL files I dumped into Repetier, sliced with slic3r (the integrated one) and then saved to SD card. Problem is I have altered my slic3r settings several times since I originally saved that file and don't remember what they were at that time. Now I want to replicate those same settings for other files not printing so well, which probably, (but not definitely) slic3d with different settings. My config h file has remained consistent while doing doing these tests.

My question is - is there any way I can find these settings from the saved file on the SD card (the gcode file)? I see the temps, but the nozzle width (have several), layer height, speeds, etc? I am guessing they have to be *somewhere* in there as how else does the machine know what to do???

Thanks!
Jan

[William]

Hi,Jan
You're so smart.
Yes,the Gcodes in every line stand for different "command".
You can modify the Gcode to modify the corresponding printing settings.
And i guess you may wanna read this article about "Gcodes":
http://reprap.org/wiki/Gcode#M106:_Fan_On
Regards

[JanF]

Thanks William, yes I am aware G-code is a series of commands to the printer. However my problem is that I don't see anything anywhere relating to the information I seek regarding nozzle width, layer height, speeds, etc. The G codes that are there are seem about temperature, fans, retraction and movements of axis. I cannot paste it as it exceeds the allowed message characters, but I uploaded here if you care to look. https://dl.dropboxusercontent.com/u/42779103/gcode.txt I would be grateful if you can tell me where to look.

Thanks
Jan

[William]

No worries,Jan
As far as i know,I quote two line of your codes to describe it:

G1 Z0.3 F7800
...
G1 Z0.56 F7800

"Z0.3" means the first layer height is 0.3mm,while "Z0.56" in the next line means your layer height is 0.56-0.3=0.26mm,and "F7800" means your travel speed(non-printing speed) is 7800mm/min,which means 130mm/s.

G1 X76.753 Y80.357 E0.15217 F1800

In these codes,the "F1800" codes mean your printing speed is 1800mm/min(30mm/s).
As for the nozzle width,i have no idea about it in the G-codes...

[JanF]

Ah, excellent, exactly what I needed and information hard to come by. Thank you SO much!

kindest regards
Jan

[William]

Ah, excellent, exactly what I needed and information hard to come by. Thank you SO much!

kindest regards
Jan

My pleasure