Strange issues after MK2S to MK2.5 upgrade
My printer has not been preforming very well since doing the upgrade. The combo of issues has been a nightmare to track down.
When I tried to print 0.15mm and extruder was clicking.
What the heck is up with the over extrusion?!
How do I verify my suspicions about low temp. If it is a low temp issues, do I need to buy a new thermistor?
I'm going to upgrade to the R3 extruder. Going to replace the bad fan while I have it torn apart. What other maintenance things should I be looking out for during the upgrade?
Re: Strange issues after MK2S to MK2.5 upgrade
Hi Matt..
silly question,
did you reload the correct firmware?
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: Strange issues after MK2S to MK2.5 upgrade
Not a silly question at all 😀 Running MK25_3_6_0_RAMBo13a_en-cz
Re: Strange issues after MK2S to MK2.5 upgrade
Turns out default e step values changed for MK2.5
// MK2.5
#define DEFAULT_AXIS_STEPS_PER_UNIT {100,100,3200/8,133}
// MK2
#define DEFAULT_AXIS_STEPS_PER_UNIT {100,100,3200/8,161.3}
My e steps are 161.3, not 133 :O
Ran M502 (didn't know it was a thing until I started digging through the source code xD), looks like there are a few differences between MK2.5 default settings and what is written to my EPROM. Going to write the defaults to EPROM and see how it goes.
I have never changed any values other than e step before. This tells me that my EPROM never got reset after upgrading to MK2.5. I wonder if there was a step in the instructions that I missed?
That still does not solve my temp problem though. Although I need a method to verify it is indeed a temperature problem. Anyone have any idea how I can test it?