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Hi Q,
its me again 😉
have another problem …
want to try the hotend and extruder …
i was suprised – now everything seems to work AND then i activate the extruder (long time not used, only weeks ago to check if extruder work …).
The only thing what happend was a humming pulsating noise like a stepmotor is hard working.
In Pronterface the message “echo: cold extrusion prevented” posted again and yet again since i switched of the printer.
The extruder-stepmotor did not move in this situation and you can turn the wheel of the extruder (no power). Then i recognise that the sound wasn’t from the motor – it was from the stepdriver (or near round that)!
Try times – always the same, i tought that ramps, stedriver or something like this is broken.
i changed the stepdriver and then the ramps – always the same result.On a flash of inspiration (however!) i flashed the original Marlin Firmware ..
and …
it works like a charm!!
but why ? have no idea … have board 33 in configuration.h and checked the pins.h …
no abnormalityhave u an idea ?
Greetings
Whiskey(and of course i send Pics from first print 😉 think i’ll make a video on Utube
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AH! maybe a good idea ..
possibly it has somthing to do with “#define PIDTEMP” ?
I try to extrude cold … and the system want to prevent this(with a nice sound”modul” 😉 ) and on original marlin this is not enabled (or? upps – must take a look)try to comment #define PIDTEMP but have compile errors …
🙁 orginal firmware has it too …
whatever … – i will try to warm extrude now
…
will report … (hope soon) -
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