Take a Closer Look
It is very straightforward, but the downloadable PDF instructions leave a lot to be desired. I highly recommend using the top-rated "how to build" video, along with the PDF. Here is a link to that video:
The video contains a huge number of hints which, having now completed my first 3D print, which was 100% successful, I can now fully appreciate. The video helps you get everything square, and makes sure that many minor adjustments which were not done perfectly at the factory, are tweaked just right.
Printer size is 220*220*250
The stuff product uses the 1.75 mm filament. Any 3D printer can be modified to use the three mm but that requires a much more intimate knowledge of 3D printing machines.
Yes it does come with a a spool holder which mounts to the top of the frame