It can be printed in any 220x220 mm printer, but you have to be careful that the x-carriage doesn't hit any of the bed holding clamps.
Other than flexible filament, any other filament will do just fine.
A part from the two printed parts, you will need:
4x 3Mx70mm threaded rods
8x M3 Nuts with their corresponding washers
4x 5x45mm aluminum hollow rod
1x small zip tie
Refer to the pictures for the assembly. The zip tie is used to hold the end of the filament on place.