Amafutha okugcoba avela kwiphampu yokuthambisa ngokunembile futhi athuthelwa ngobuningi endaweni ngayinye yokuthambisa ngokusebenzisa umsabalalisi oyedwa oyedwa. Ukukhishwa kwamafutha komhambisi onobuningi ngeke kuguquke ngenxa yokuvunywa kwamafutha, izinguquko zokushisa, noma ubude besikhathi sokunikezela ngowoyela. Umphumela kawoyela womsabalalisi wevolumetric we-specification efanayo akathinteki ngezinto ezifana nebanga nokuphakama kwesikhundla sokufaka.