Buy the bundle here and print the printed parts. The bundle is pretty much plug and play 🙂 No worries of frying RAMPS/Arduino boards or flashing firmware issues. It’s actually cheaper in the long run in terms of wait and assembly time. As soon as I ordered my bundle kit and printed the parts, went to Home Depot and picked-up EMTs. I think I only spent less than 10-15 hours building my MPCNC as soon as I received the kit from Ryan.