Izindaba Zemboni

Bengibonisa umngane wami esitolo ezinyangeni ezimbalwa ezedlule. Usebenza ku-software, ngakho yonke indawo yayintsha kuye. Imishini, amathuluzi, nomsindo. Wayethathekile. Kodwa into eyamdonsela ukunaka ngempela uketshezi. Ukugeleza okuqhubekayo kokufutha koketshezi kukho konke ukusika, kuhlanganiswa kuma-chip tray, kuconsa ezingxenyeni.

"Yini leyo nto?" ebuza. "Futhi kungani ikhona yonke indawo?"

Ngaqaphela ngaleso sikhathi ukuthi into eyisisekelo kangaka kithi ayibonakali nhlobo kubantu abaningi. Ukusika uketshezi kungenye yezinto wonke umuntu osebenza ngomshini azithatha kalula. Kulapho nje. Kuhlale kukhona. Asicabangi kakhulu ngakho kuze kube yilapho kukhona okungahambi kahle.

Kodwa uma kungahambi kahle—lapho ukuhlushwa kwe-coolant kuvaliwe, noma ukugeleza kuyeka, noma kusetshenziswa uketshezi olungalungile—uyazi ngokushesha. Amathuluzi ayaphuka. Izingxenye ziyawa. Wonke umsebenzi uyawa.

Ngakho ake sixoxe ngokuthi uketshezi lokusika luyini ngempela, lwenzani, nokuthi kungani kufanele ukhathalele.

Ngithole ucingo oluvela kumthengi esikhathini esithile esidlule. Wayecasukile. Izingxenye esimthumelele zona zazibukeka kahle ebusweni, kodwa lapho eqala ukuzihlanganisa, kukhona okungahambi kahle. Umgodi okwakufanele ushelele ebhodweni awuzange uhambe. Wawulinganisa. Umgodi wawungu-0.03mm omkhulu kakhulu. Akwanele. Kodwa kwanele.

Wayithumela emuva. Ngayibeka epuletini elingaphezulu ngaqala ukuhlola. Ububanzi babulingana nemali emaphethelweni. Kodwa phakathi nendawo, yayikhuluphele. Isakhiwo esithambile sebhereli ongeke usibambe nge-micrometer emaphethelweni.

Sibe nenkinga yokukhuluma ngesikhathi sokuqeda iphasi. Ithuluzi laphambuka phakathi, lashiya okunye okwengeziwe, futhi saliphuthelwa ngesikhathi sokuhlola.

Leyo ngxenye yasibiza imali. Yangibiza ukuzethemba kwekhasimende. Futhi yangifundisa okuthile engangikwazi kakade kodwa okwakudingeka ngikhunjuzwe ngakho: amaphutha awabonakali njalo njengamaphutha. Ngezinye izikhathi ayacasha.

Ake ngikuchazele ngezinkinga ezivame kakhulu engizibonile ekusetshenzisweni kwe-CNC machining, ukuthi zibangelwa yini, nokuthi ungazigcina kanjani zingangeni ezingxenyeni zakho.

Ngithole ikhasimende lingishayela ucingo ngesonto eledlule. Lalidinga ingxenye. Akuyona ingxenye eyinkimbinkimbi. I-aluminium, imisebenzi embalwa, akukho lutho okufanele luthathe isikhathi eside.

"Ungakwenza nini lokhu?" ebuza.

Ngabheka isimiso. Imishini emibili yayiboshwe ngesikhathi sokukhiqiza okwakufanele ithunyelwe ngoLwesihlanu. Umshini wesithathu wawulinde izinto okwakufanele zifike izolo kodwa ezingakafiki. Nganginomsebenzi wokusheshisa owafika ngoLwesibili engangiwuthembise ikhasimende elihlukile ngoMsombuluko. Futhi uchwepheshe wami wemishini ongcono kakhulu wayengekho egula.

"Amasonto amabili," ngathi.

Wathula isikhashana. "Amasonto amabili? Ukuze uthole ingxenye elula ye-aluminiyamu?"

Akakushongo lokho, kodwa ngangikuzwa lokho ayekucabanga:Nenzani nina bantu laphaya?

Angimsolanga. Uma ubheka ngaphandle, kubukeka kulula. Unemishini. Unabantu. Unempahla. Kungani ungeke nje uphathe ingxenye yami?

Impendulo iwukuthi ukuhlela ukukhiqiza akuyona into eqondile. Kuyiphazili. Futhi njalo uma kufika umsebenzi omusha, iphazili iyashintsha.

Ngibizwe yikhasimende ngesonto eledlule. Laliphethe umdwebo esandleni salo, futhi lathola ama-quote amathathu. Elinye lalibiza u-$850. Elinye lalibiza u-$2,200. Elinye lalibiza u-$3,500.

"Ingxenye efanayo," esho. "Izinto ezifanayo. Ukubekezelelana okufanayo. Lokhu kungenzeka kanjani? Ingabe lo muntu oshibhile uyasishintsha isimo? Ingabe lo muntu obizayo umane nje ukhokhisa imali eyengeziwe ngoba ekwazi?"

Ngambuza ukuthi zingobani izitolo. Eshibhile kwakuyisitolo somuntu oyedwa esisebenzisa imishini emidala ephuma egaraji. Ephakathi kwakuyisitolo esincane semisebenzi esinemishini embalwa emisha. Ebiza kakhulu kwakuyisitolo sokukhiqiza esinesitifiketi se-ISO kanye nohlu lwamakhasimende ezindiza.

"Bobathathu bangenza indima yakho," ngimtshela. "Badlala imidlalo ehlukene nje."

Lokhu kwenzeka ngaso sonke isikhathi. Umuntu uthola izingcaphuno ezintathu, futhi izinombolo zigcwele yonke indawo. Akukhona ukuthi noma ubani akathembekile. Kungenxa yokuthi izitolo zihlukile. Imishini yabo ihlukile. Izindleko zabo zihlukile. Indlela yabo yokubhekana nengozi ihlukile. Futhi konke lokho kufakwa entengo.

Ake ngikubonise ukuthi yini ngempela edala lezo zikhala.

Ngifike nekhasimende ngenyanga edlule linefolda egcwele imidwebo. Laliklame umkhiqizo omusha—uhlobo oluthile lwendlu yezinzwa zezolimo—futhi lalidinga izingcezu eziyishumi ukuze lizihlole ensimini. Sacaphuna umsebenzi, saqhuba izingxenye, futhi lajabula.

Ngemva kwezinyanga eziyisithupha, wabuya. Ukuhlolwa kwasensimini kwasebenza. Wayedinga izingcezu eziyinkulungwane ngenyanga. Imidwebo efanayo. Izinto ezifanayo. Ingxenye efanayo.

Wacabanga ukuthi sizovele siqhube uhlelo olufanayo, mhlawumbe ngokushesha, bese simthumelela izingxenye eziyinkulungwane.

Wayenephutha.

Umehluko phakathi kokwenza ingxenye eyodwa nokwenza inkulungwane awukona nje ukuphindaphinda ngenkulungwane. Kuyindlela ehlukile yokucabanga. Imishini ehlukene. Amathuluzi ahlukene. Ukuhlolwa okuhlukile. Konke okuhlukile.

Nginomngane ophethe isitudiyo sokuklama umkhiqizo. Eminyakeni embalwa edlule, inqubo yakhe yayilula: klama ingxenye, thumela ifayela esitolo semishini, linda amasonto amabili, uthole iphrothokholi emuva. Uma idinga izinguquko, phinda.

Manje usenephrinta ye-3D ehhovisi lakhe. Uklama ingxenye, ashayele okuphrintiwe, futhi uphethe okuthile esandleni sakhe ngakusasa ekuseni. Ungishayela ucingo ngezinye izikhathi ukuze abuze ukuthi isici esithile kufanele siphrintiwe noma sisetshenziswe ngomshini. Futhi impendulo ayilula neze.

Yilapho abantu abaningi bezithola khona namuhla. Unezobuchwepheshe ezimbili ezenza izingxenye ngamafayela edijithali, kodwa zisebenza ngendlela ehluke ngokuphelele. Obunye busika izinto. Obunye buyakha. Obunye bube khona amashumi eminyaka. Obunye busathuthuka ngokushesha.

Ngakho-ke ukhetha kanjani? Ake sixoxe ngalokho okulethwa yilowo nalowo esitolo.

Ngibuke iqembu lezingxenye ezingamashumi amane lilahlwa ngenyanga edlule ngenxa ye-burr ongakwazi ukuyizwa kahle.

Izingxenye zaziyimizimba yamavalvu e-aluminium. Zenziwe ngomshini omuhle. Ubukhulu buphelele. Ukuphela kwendawo lapho kwakudingeka khona. Baya ekuhlanganisweni, futhi uchwepheshe wafaka indandatho ye-O phezu kwenye yamachweba. I-burr—encane, cishe engabonakali—yabamba irabha yasusa i-sliver. Akwanele ukubona, kodwa kwanele ukuphazamisa uphawu. I-assembly iphumelele ukuhlolwa kokucindezela? Cha. Yavuza.

Izingxenye ezingamashumi amane. Amashifu amabili omsebenzi. Konke kungenxa yokuthi othile unqume ukuthi ukuhlehlisa kungalinda futhi ukuhlolwa kuzokubamba.

Lokhu kwenzeka nsuku zonke ezitolo emhlabeni jikelele. Ukususa i-deburring kuphathwa njengokucabanga ngemuva. Into oyinika umuntu omusha onefayela kanye ne-scraper. Kodwa empeleni, lokho "kucabanga ngemuva" kuvame ukuba umehluko phakathi kwengxenye esebenzayo nengxenye ehlulekayo.

Ngithole ikhasimende lingishayela ucingo ngesonto eledlule lingibuza umbuzo engiwuzwa njalo. Laliphethe ingxenye yesibonelo esandleni—indlu encane ye-aluminium, kungekho lutho oluyinkimbinkimbi—futhi lalifaka uzipho lwalo phezu kwendawo.

"Kubukeka kukuhle," esho. "Kodwa yini iRa? Ungakwazi ukuyenza ibe bushelelezi?"

Ngambuza ukuthi yini okwakudingeka yenziwe yingxenye. Wayengaqiniseki. Wayazi nje ukuthi ukushelela kungcono, noma okungenani yilokho ayekuzwile.

Lokhu kuvela njalo kuleli bhizinisi. Onjiniyela bafaka ama-callout okuqeda okungaphezulu emidwebeni ngoba becabanga ukuthi kufanele bakwenze. Ama-ejenti okuthenga acela "ukuqeda okuhle" ngaphandle kokukuchaza. Futhi ochwepheshe bemishini basala beqagela ukuthi kusho ukuthini ngempela "okuhle".

Ngakho ake sixoxe ngokuthi yikuphi ukuqeda komshini we-CNC okungakulethela ngokoqobo—hhayi lokho okushiwo yizincwajana, kodwa lokho ongakulindela uma ubeka ingxenye emshinini bese uyisebenzisa.

Angisazibali ukuthi zingaki izingxabano engizibonile ziqala ngenxa yokuvimba ukubekezelelana.

Ingxenye ethile iphuma emshinini. Umshini uyayihlola. Ingu-25.02mm kusici esibiza u-25.00mm ±0.05. Uyibeka kahle bese eyithumela ekuhlolweni. Umhloli uyayibheka, ubona u-25.02, bese eyibhala njengengahambisani ngoba umbhalo uthi ±0.05 kanti ingxenye ingaphezulu kuka-0.02.

Umshini uthi, "Kungabekezelelana." Umhloli uthi, "Kuphelile ngama-2000." Unjiniyela ubizelwa ngaphakathi. Bese othile eqaphela ukuthi umdwebo empeleni uthi 25.00mm ±0.05 bese umshini ewufunda njengo-25.00mm ±0.05. Wonke umuntu wayebheka izinombolo ezifanayo futhi ebona izinto ezihlukile.

Lokhu kwenzeka nsuku zonke ezitolo emhlabeni wonke. Hhayi ngoba kukhona umuntu onephutha, kodwa ngoba ukubekezelelana kuyilimi. Futhi njenganoma yiluphi ulimi, kufanele wazi uhlelo lolimi.