Hi Daniel,
thanks for posting that...I already saw a video tutorial on that idea in youtube but yours seems to be far better! Do you have it? Feedback?
Where do you buy that big cube? I can see some advantages in your cube:
best size, if you use for example D Type, it will never pop.
Stefan, you are right: you need two eastsheen....
I'll try to explain here the most important things that a non-italian understander could need to know:
You need:
A core
Type AII springs and screws
2 Eastsheen
Cutter
Glue
6 washers
Modificiation:
You have to cut the 3 arms on two Eastsheen...that way you have 6 arms.^
Attach the arms to the 6 centers with glue. On the bottom of that new centers you have to glue also a washer. That way you create new centers in wich springs can be added. The springs doesn't need to be cutted.
Add the Core a in the middel and the game is done.
Remember: the corneres have parts that need to be cutted in order to let turn the middle layer and the springs...
Also: three edges must be attached with glue to a corner in order to allign always the middle layer with the rest of the structure.
With good eyes you should now really be able to understand my tutorial...
Regards
Federico