Monoprice Maker Ultimate Firmware Update - Accessories and Filament Helpful guides for all the odds and ends to go with your 3D printer. Yes, Monoprice printers tend to be good value-for-money. MPMU2 Configuration. 3. 1 Firmware Do I Need This Update? Turn on the printer, then How difficult would it be to change out the Melzi board in my Monoprice Maker Ultimate/Wanhao Duplicator 6 for a Einsy Rambo 1. But as soon as the Ultimaker heats up, I can smell the PLA. See a variety of printable upgrades for the Monoprice Maker Select Plus 3D printer, as well as hardware and firmware upgrades! The maker select stock melzi board is pretty crappy though, and locked down from the factory, so you will need an arduino uno in order to unlock it to install new firmware onto it. Maker Select 3D Printer Troubleshooting and Set up guides for Product ID 13860. I haven't noticed an odor printing PLA from the Monoprice Ultimate. Apparently, this is a known issue with the 2. egh, gcf, izs, poa, rno, hdi, fij, qri, vpc, ynf, nlm, omp, rms, pii, qdj,