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Marlin - Getting values for configuration.h

Posted by Ilmion 
Marlin - Getting values for configuration.h
December 07, 2012 03:12PM
Hello,
I was wondering if i'd ask on the IRC channel, but I think it could also serve furture newb like me.

There are some value that I do not know where to get in order to correctly setup the Marlin firmware.
Here are the #define in question (and how they are configure by default):

#define HOMING_FEEDRATE {50*60, 50*60, 4*60, 0}  // set the homing speeds (mm/min)
#define DEFAULT_MAX_FEEDRATE          {500, 500, 5, 45}    // (mm/sec)    
#define DEFAULT_MAX_ACCELERATION      {9000,9000,100,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for skeinforge 40+, for older versions raise them a lot.

#define DEFAULT_ACCELERATION          3000    // X, Y, Z and E max acceleration in mm/s^2 for printing moves 
#define DEFAULT_RETRACT_ACCELERATION  3000   // X, Y, Z and E max acceleration in mm/s^2 for r retracts

#define DEFAULT_XYJERK                20.0    // (mm/sec)
#define DEFAULT_ZJERK                 0.4     // (mm/sec)
#define DEFAULT_EJERK                 5.0    // (mm/sec)

It would be a plus to know what they are use for (some of them I can guess)

Also, I've read here that this #define should be false for prusa mendel :

#define min_software_endstops false //If true, axis won't move to coordinates less than HOME_POS.

Why would I want my printer to move to coordinates less than HOME_POS ? why Prusa Mendel ?

thanks in advance.
Re: Marlin - Getting values for configuration.h
December 07, 2012 06:02PM
Quote
Why would I want my printer to move to coordinates less than HOME_POS ? why Prusa Mendel ?

You probably don't, but not all printers home to Xmin, Ymin
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