Koodka CNC waxaa lagu xallin karaa in la yaqaananshaho saamimaha iyo wajihaha fankadhaha, kaas oo isku daynaya saamimo gaaban iyo nidaamka raad-rabaad buuxda. Kooxaha mekaniikalka waxaa bilaabma beddu, taasoo ah qaybta saamiska weyn ee tundada ah oo taajiyeya dhammaan qaybaha kale. Saddlka (saddle) waxaa ku dhajiya beddu, waxay u socotaa X-qaaddka (midig ilaa bidix), haddana meesha la shaqeeyo (table) waxaa ku dhajiya saddlka, waxay u socotaa Y-qaaddka (hoose ilaa sare) waxayna taajiyeya shakhsi (workpiece) iyadoo loo isticmaalayo vises ama fixtures. Colunuhu waa saamimo dheer leh oo dhagaysan beddu, intaas oo spindle head, taasoo leh spindle, waxay u socotaa korodhalinta colunuhu sanjiyada Z-qaaddka. Spindle huwuu yahay qaybta korodhalaysta oo leh aadka cutanka (cutting tool) iyadoo loo isticmaalayo tool holder, waxaana saaran moorka awood u leh. Si loo sameeyo xeerarka, waxaa jira tool changer (ATC) oo lahaa tool magazine si loo badalo aadkii sida loo programay. Nidaamka drive wuxuu leeyahay servomotors oo xidhan ball screws gacanta kasta, oo ku wareejiyaya nidaamka elekaraka ilaa xarunta saxsan. Nidaamka CNC control system waa xaqijinta dambe, ka kooban control unit (computer khusi ah), operator control panel leh screen iyo keyboard, iyo drive amplifiers oo saaro motorka. Nidaamkan waxa uu ku rely garanayo feedback ka timid rotary encoders ku jira motorka ama linear scales ku jira axis-siga si ay u hubiyaan in position-daba loo sameeyo ay tahay marka loo amray. Qaybaha kale ee muhiimka ah waxaa ku jira nidaamka coolant, leh pump, tank, iyo nozzles, si loo qaroojiyo aadka iyo shakhsi, sidoo kale in la saaro chips; nidaamka lubrication saamimaha guideways iyo ball screws; iyo machine enclosure si loo hoordeyn doxada iyo in la cabsado. Ogaanista qaybahan waxaa keeni doona fahamka ku taal oo maashiinka ku filan karaa shaqooyin complex, aan la raadin karin, iyadoo leh heer gaaban oo saxsan
Kooxdaaga shuusha waxbarashada waa in la mid haystay in la caawinayo.