Quote - Wow this is great. Yes the base needs to be removeable as well.

On the bell I see the base of the bell is a disc I guess for locking the base on so the extra weights can be added or removed. So if you make the square bas removeable as a seperate part please include the thin black disc on bottom as in this new image.

 

Thanks so very much!

Ah! That makes things easier! All I have to do is add that part, instead of having to reconstruct the whole bell sphere.

No problem, I'll have you a new one in a jiffy!