I understand what you mean with all that re' bugfixes and newer versions etc, but what I mean is that this new melzi does not behave at all with the marlin firmware (with the device set as mendel legacy), whereas on the previous melzi (which was bought by itself and not as part of a complete printer) it used the mystery "RRP" firmware on it, and worked fine.
Thus my thinking that if I can get a copy of the same version that was on my old board hopefully it will work ok on the new one, without needing a lot of investigation on getting all the tweaks & settings perfect since I know it already worked fine without any tweaks. There may be slight hardware variations between the 2 melzi boards but for the most part I'd expect that RRP firmware to be very close if not fine from the start, as long as they can send me the same version that I was using.
I hope that makes sense - apologies if I'm not explaining very clearly!
I'm happy enough looking at the content of the firmware files to see what code is in there but I don't nearly know enough to be able to know what all the settings ought to be and so on. Obviously one expects some trial & error with stuff like this but I figure if I can get the RRP firmware clarified & obtained then I will make a huge reduction in the amount of tweaking required.
I did just find this thread actually:
[www.soliforum.com]
It's a review of the ready built printer from the place that made my old Melzi (RP3D.com). The article states that it uses an old version of sprinter, so I will see what I can find on github and try a sprinter firmware to see how it behaves.
Thus my thinking that if I can get a copy of the same version that was on my old board hopefully it will work ok on the new one, without needing a lot of investigation on getting all the tweaks & settings perfect since I know it already worked fine without any tweaks. There may be slight hardware variations between the 2 melzi boards but for the most part I'd expect that RRP firmware to be very close if not fine from the start, as long as they can send me the same version that I was using.
I hope that makes sense - apologies if I'm not explaining very clearly!
I'm happy enough looking at the content of the firmware files to see what code is in there but I don't nearly know enough to be able to know what all the settings ought to be and so on. Obviously one expects some trial & error with stuff like this but I figure if I can get the RRP firmware clarified & obtained then I will make a huge reduction in the amount of tweaking required.
I did just find this thread actually:
[www.soliforum.com]
It's a review of the ready built printer from the place that made my old Melzi (RP3D.com). The article states that it uses an old version of sprinter, so I will see what I can find on github and try a sprinter firmware to see how it behaves.