1. Xa ukugaya i-conical, itafile inokushukunyiswa ukuya kwelinye icala kwaye ibekwe ngqo ngokusebenzisa isikali.
2.Ifilimu ye-oyile phakathi kwebheringi kunye ne-spindle igcina ukungcangcazela kwinqanaba elisezantsi, kungoko ifumana iziphumo ezibalaseleyo kunye nokuchaneka okuphezulu.
3.Intloko yokusonta elungelelaniswe ngokuchanekileyo kunye nentloko eqinileyo yokusila iqinisekisa iziphumo ezingaqhelekanga kulo naluphi na uhlobo lomsebenzi.
4. Ukuqiniswa okuqinileyo kunye neepaneli eziyilwe ngokuqinileyo zesiseko somatshini zenza ukuba zixhathise ukuguquguquka kweqondo lokushisa kunye nokuguqulwa.
5. I-Spindle ixhonywe kumacala omabini kwaye ibonakalisa iibheringi ezihlengahlengiswayo ezibandakanya amacandelo amathathu.