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MK3S HEMERA FIRMWARE  

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Jimbo70
(@jimbo70)
Estimable Member
MK3S HEMERA FIRMWARE

I have done the hardware upgrade of my Prusa Mk3s and now I need the firmware. I am not sure where to look for the latest information and what exactly to change. There are several posts on the E3D website but they seem outdated and confused. Please help!

Publié : 02/04/2021 8:23 pm
Dan Rogers
(@dan-rogers)
Noble Member
RE: MK3S HEMERA FIRMWARE

Not enough information.  What update did you do that has you looking for firmware at a 3rd party site?

 

Publié : 03/04/2021 3:01 pm
Jimbo70
(@jimbo70)
Estimable Member
Topic starter answered:
RE: MK3S HEMERA FIRMWARE

Sorry, I did the BearMera upgrade. All of the firmware changes were from the author,  Grégoire Saunier 

See this site for the firmware changes:  5. Software configuration - Bear Lab (bear-lab.com)

All the parts fit well and everything works except the extruder motor - it will not do any movement with either the load or unload command.

I have tried reversing the red and green wires on the extruder motor as some have suggested but this does not help. 

There was a patch for the firmware see attached. 

Publié : 04/04/2021 3:02 am
Jimbo70
(@jimbo70)
Estimable Member
Topic starter answered:
RE: MK3S HEMERA FIRMWARE

the website would not let me attach the gcode file - here it is printed.

; Setup microstepping, estep and homing position for Bear Hemera extruder MK2.5(S) and MK3(S)
M503 ;list config before changes
M350 E16 ;set 1/16 microstepping
M92 E409 ;set esteps
M206 X-11 ;set new homing position
M500 ;save to eeprom
M503 ;display new config

Publié : 04/04/2021 3:04 am
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