Latest M2 Firmware

[Karl Williams]

Would it be possible for Makergear to post the latest firmware that the M2 is shipping with?

It seems that the endstops are only be used for homing. After homing an axis, it can still be jogged into the negative, trying to move below zero causing the steppers to stall and grind. Even just the latest configuration.h file would be great. I'd also like to config the firmware so that the Z-axis doesn't drop to the bottom when there hasn't been any activity.

I couldn't find a downloads link on the MakerGear website and had to go to Ultimachine to get the rambo driver. Maybe MakerGear could add a Downloads page?

My first print on the M2 looks great! Very nice machine.

Karl

[Joshua Wills]

http://makergear.wikidot.com/m2-firmware has information on firmware tweaking, and the original shipping firmware.  There is one change, noted at the top of that page, in RAMBo revisions, that requires a small change in the firmware.

[Karl Williams]

Thanks Joshua :-)

[Karl Williams]

Here are the changes I made to the firmware posted in the link above so that it works with 1/16 microstepping.  I noticed that the z-axis homing speed is very slow in the above firmware link so I changed that to something closer to the factory setting. I'm impressed with the print quality!

Configuration.h

#define PID_MAX 140 // limits current to nozzle; 255=full current

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

#define DEFAULT_AXIS_STEPS_PER_UNIT   {88.88,88.88,400,471.5}  // steps per unit for M2 with 1/16 microstepping 

#define HOMING_FEEDRATE {50*60, 50*60, 20*60, 0}  // set the homing speeds (mm/min)

Configuration_adv.h

#define DEFAULT_STEPPER_DEACTIVE_TIME 300

[Earsmith]

Thanks for the information, used the settings and they work well. Made a post referencing this. Recommend you do this..................