Print speed set to over 800%

[acdove 0]

Hi,

 

New to 3d printing.

 

Have created a few gcode files and most things have printed fine, but a couple  of models have gone haywire. when used Cura to genrate gcode files and tries printing them, the printer screen is saying speed of over 800% and the printer goes haywire.

 

Some other projects are fine.

 

Am i doing something wrong?

[GregValiant 1,357]

This has come up recently but when I looked through the posted Gcode file there isn't any problem.  Somehow the printer is jumping the feedrate to over 800%.  What printer are we talking about here?

 

If you open the gcode file with a text editor (like MS Notepad in Windows) and search for M220 I'm sure you won't find one like M220 S810 which would tell the printer to change the feedrate to 810%.  M220 is the only Gcode command that alters the feedrate percentage (the Global feedrate) of the printer itself.

There is something going on the printer or firmware that is causing this.  As I recall, even a firmware reset didn't help that other poster and when I printed their gcode file with my E3Pro it printed just fine.