Oh it hurts. But it is what it is. So this printer prints awesome. I still have some dialing in to do but it has become clear to me at this time that I can not connect a tft AND the MMU2S at the same time. This has pushed me to find another mainboard with at least 2 sets of rx and tx pins. I have found that here: https://www.biqu.equipment/collectio...rts-for-i3-mk3 . So I have ordered it and when it arrives I must rework this printer yet again to accept this board so I can move forward with the multi material stuff. No worries on wasted parts, though. This SKR 1.4 Turbo board will go to Printalicious, the printer that made all the parts for this rework and also for the blue geeetech i3 rework. Printalicious will also receive a mag flexible bed.