nope - just a translation error
Professor was making a small joke, referring to these bikes as similar to an addiction - that even when you have one completed you will want another... and another... and maybe even another.
I too am building another despite the fact I already have one and very much enjoy it
Welcome to the forum by the way, it's good to have you here! I'm looking forward to seeing a project completed by someone as thorough as you
*Project = the planning and process required to make something, including the object itself until it's completed. So yeah, the meaning is the same.