I cant find functional in Clara.io for create object with specified sizes for 3D printing (items 1 and 2 below).
So I really hope that anyones here help me with a good advice :)
The example of usecase I need, is
1) create box abc, with sizes: a=45,6sm, b=20,1sm, c=26sm
2) create сut a'b'c' in the box, with sizes: a'=30,5sm, b'=15sm, c'=21sm
3) saved this model in .stl and printing on 3D printer