I have added the other Z motor and the heated bed. Now I am working on the extruder. I think wiring this machine might be a bit of challenge. I did not mention I got this machine from China. I am not sure whether to mention the company I ordered from but can tell you this: One of the first things i did was replace a laser cut extruder motor holder with plastic parts. Unfortunately, the machine also weirded out while i was commissioning it. I was testing the motor axes and the extruder got stuck in one position. A couple more plastic pieces broke. I took the machine apart, discarded the plastic parts and rebuilt the whole thing from scratch. The interesting challenge now will be to be sure I wire the printer up in a such a way that it works properly.