Zane-zanen da aka yi da filastik mold galibi ana iya yin su ne da ƙarfe 45#, wanda ake kashewa da kuma rage zafi don ƙara juriyar lalacewa. Matsayin sandar jagora mai karkata na iya kasancewa a gaba ko a baya, wanda za a iya tantancewa a sassauƙa gwargwadon girman mold ɗin. Duk da haka, ya kamata a ƙayyade kusurwa da tsawon ginshiƙin jagora mai karkata bisa ga nisan motsi na mai zamewar; gabaɗaya, kusurwar ginshiƙin jagora mai karkata shine 20° ko 25°. Ƙayyade kusurwa mai tsayayye na iya sauƙaƙe samar da ƙarfe mai karkata, don guje wa buƙatar kowane lokaci. Don yin ƙahonin da suka karkata na kusurwoyi daban-daban. Yi amfani da dokar cosine na ayyukan trigonometric don ƙididdige tsawon sandar jagora mai karkata.

Akwai nau'ikan maganin saman mold da yawa, na yau da kullun sune saman santsi da saman da aka yiwa alama da pock, waɗanda sune tasirin saman da ake buƙatar yi bisa ga zaɓin abokin ciniki.
Ana iya amfani da duk wani matakin kammala saman a masana'antarmu.

Tushen mold na yau da kullun yana nufin cewa tushen mold an yi shi ne da kayan P20, kuma mold ɗin an yi shi ne da fasahar firam ɗin madubi. Ana amfani da shi gabaɗaya don molds na fitarwa. Fa'idar wannan amfani ita ce idan akwai matsala da mold ɗin, ana iya gyara shi kawai ta hanyar maye gurbin sassan, wanda ya fi kyau.