I found this project quite by accident, while trying to find whitepapers on the LCD. Great stuff!
I loved my IIIP (literally) to death. In particular, the death of at least one of the stepper drivers, but not after spooling at least 10kg of filament.
I have no interest in reviving the old mainboard. Instead, I’m gutting my IIIP and turning it into a more-or-less reference Marlin/RepRap with dual extruders and a Zprobe.
I’m doing this with a generic RAMPS 1.4 board with replaceable (yay!) stepper drivers and running Marlin.
At the start of the project a few days ago, I was content to make this a dead-headed printer running directly off one of my old spare PCs, so while I was poking around to see if it was workable, I weally wasn’t bothered about it since I could always deadhead it through a USB port…
But then I found this LCD this so-called Sebastien Andrivet came up with. Absolutely stellar stuff. Must have it.
I’ve done some rooting around in the forums, and to my disbelief (having blown out 2 of these boards already just using them) it doesn’t look like doing this has ever occurred to anyone–or else I’m searching the wrong terms.
In any case, my understanding as to how the LCD works is that it essentially feeds the mainboard serial commands, based on standard Marlin commands and expected responses. This would imply that as long as I can sort out the physical interface with the RAMPS board, then all I really need to do is make sure that the pre-built config/tuning scripts are using the correct calls/responses.
I’m in the planning phase while I wait for Amazon to Nerd Up my mailbox with stacks of electronics components… Any advice or direction would be nice–especially if someone has already invented this particular wheel.