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Updating Firmware old machine?

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I'm looking to update the firmware of an older ultimaker I have.. I think it has the 2560 atmega installed.

when I look at cura it says I cant as it it doesn't support my config (heated bed)

and also warns that I must have the extruder upgrade.

Is the extruder upgrade warning, just due to the different e-steps with the newer V3 bolt? or something else.

So i'm looking to use http://marlinbuilder.robotfuzz.com/ and construct the custom hex. would this be ok on an older machine, if I just change the esteps, until my new V3 bolt arrives?

Thanks for a stunning forum btw ;-)


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You should be fine. Do you have the old hex file in case you want to go back to an older version again?

robotfuzz works quite well. yes I suspect the only thing is the steps/mm for extruder. So you can calibrate that and set it to whatever you want.


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