Negative from mesh (mesh diference)

rhino
grasshopper
unhandled

(Randabull) #1

hi, im trying to make a negative box from this code but i have some problems with the mesh diference i want to create a mold to fabricate the original form

attached the files
fffffffffffavk.gh (19.9 KB)
fffffffffffavk.3dm (6.8 MB)