Uma kukhulunywa ngokuphrinta kwe-3D kusetshenziswa ubuchwepheshe be-Smooth Overlay Modeling (FDM), kunezigaba ezimbili eziyinhloko zamaphrinta: I-Cartesian ne-CoreXY, kanti lena yakamuva ihloselwe labo abafuna isivinini sokuphrinta esisheshayo ngenxa yobuchwepheshe bokulungisa ikhanda lamathuluzi obuvumelana nezimo.Isisindo esiphansi sokuhlanganiswa kukabakaki abaphansi kwe-X/Y sisho ukuthi futhi ingahamba ngokushesha, okwenza abathanda i-CoreXY FDM bahlole i-carbon fiber kanye nevidiyo yakamuva [ye-PrimeSenator] lapho i-X-beam isikwa eshubhuni ye-aluminium futhi inesisindo esingaphezu kokuqhathaniswa .Amashubhu e-carbon fibre alula.
Ngenxa yokuthi amaphrinta e-CoreXY FDM ahamba kuphela esiqondisweni esingu-Z esihlobene nendawo yokuphrinta, izimbazo ze-X/Y zilawulwa ngokuqondile ngamabhande namadrayivu.Lokhu kusho ukuthi ngokusheshisa nangokunembe kakhudlwana ungakwazi ukunyakazisa ikhanda le-extruder eduze kwemihlahlandlela yolayini, ngendlela ongakwazi ngayo ukuphrinta (ngombono) ngokushesha.Ukulahla i-carbon fiber esindayo kakhulu yalezi zakhiwo ze-aluminium egayiwe kuphrinta ye-Voron Design CoreXY kufanele kusho inertia encane, futhi amademo okuqala abonisa imiphumela emihle.
Okujabulisayo ngalo mphakathi “wokuphrinta okusheshayo” ukuthi akukona nje kuphela isivinini sokuphrinta esingavuthiwe, kodwa amaphrinta we-CoreXY FDM ngokwethiyori awenza asebenze kahle kakhulu ngokunemba (ukulungiswa) nokusebenza kahle (njengevolumu yokuphrinta).Konke lokhu kwenza lawa maphrinta afanele ukucatshangelwa ngesikhathi esilandelayo lapho uthenga iphrinta yesitayela se-FDM.
Imihlahlandlela yomugqa idizayinelwe ukugoba ekucaba lapho efakwe khona.Lokhu kusho ukuthi ujantshi uzogoba ingxenye exhunywe kuyo uma ingxenye ezixhunywe kuyo ingaqini ngokwanele.Uma lokho kwanele ukungikhathaza, angazi, angikaze ngisebenzise iziqondiso zomugqa ngaphambilini.
Kukhona abasebenzisi be-Voron abazinikele kakhulu abasebenzisa kuphela ojantshi bomugqa ngaphandle kokunye ukusekelwa, ngakho-ke akulona uhlelo oluqinile olusebenza kumshini owodwa onemiphumela emihle.
Uhlelo lwe-CoreXY lunyakazisa ikhanda layo eziqondisweni ze-X ne-Y.I-axis ye-Z ifinyelelwa ngokuhambisa idekhi yokuphrinta noma i-gantry.Inzuzo ukuthi ukunyakaza okudingekayo kombhede kuncishisiwe, njengoba ukunyakaza ku-axis ye-Z kuhlale kuncane futhi kungavamile.
Njengoba omunye obeka amazwana asho (uhlobo oluthile), ama-rails amugqa manje aqala ukubukeka esindayo.Bengizibuza ukuthi zingenziwa yini ngento elula njenge-boron?(yini okungahamba kahle?)
Eqinisweni, ngisola ukuthi isixazululo esingcono kakhulu ukungahlukanisi amabhukwana nokusekelwa.Iphrinta yami eshibhile nembi kakhulu isebenzisa izinti zensimbi njengeziqondiso nezisekelo, futhi ngiyangabaza ukuthi lo mklamo ungaqhudelana nawo ngekhwalithi.(kodwa ngokuqinisekile akukhona ukunemba nokuqina)
Ukufaka izinti zensimbi eziqinile emakhoneni abhekene nge-diagonally kungase kusebenze, kodwa hhayi ngeziqondiso zebhola ezijikelezayo esezilungile.
Phakathi nethrekhi kunezimbobo ezisikwe yi-jet yamanzi abrasive ukunciphisa isisindo.Yenza uhlangothi olungemuva lube yi-inlet side ukuze ukusabalala kwemvelo kwejethi kudala ikhoni encane futhi kungabikho imiphetho ebukhali ohlangothini olungaphambili ukuze ama-wiper esangweni (uma efakiwe) anganqamuki noma asike.
Ziyinsimbi nje eqinile.Vele uwakhiphe ku-carbide.Izingxenye eziphendulelwe zisuka kumaphini okulinganisa ngensimbi eqinile engu-52100 enensimbi.
Akunakwenzeka njengoba ukuqina kokungeniswa okusetshenziswa ngesikhathi sokukhiqiza kudala izingcindezi zangaphakathi kuloliwe (amanye ama-Chinese magnesium alloy rails angeke aqiniswe nakancane ukuze enziwe ngomshini).abaphathi……
Eqinisweni, akukona ngisho nokusekelwa okufanele kwama-rails aqondile.Ngemigoqo yensimbi eshumekwe ku-aluminium bheka ama-rails e-Nadella, lokhu ngokuyisisekelo umqondo kodwa njengoba i-aluminium idinga ingxenye enkulu yesiphambano ukuze ibe nokuqina okuthile inzima kakhulu.
Inkampani yaseJalimane i-FRANKE ikhiqiza ama-4-side aluminium rails anemigwaqo yensimbi ehlanganisiwe - elula futhi eqinile, isibonelo:
Ukuqina kwe-beam kuyanda ngesikwele sendawo.I-Aluminium ilula okwesithathu futhi inamandla okwesithathu.Ukwenyuka okuncane kwesigaba kungaphezu kokwanele ukunxephezela ukulahlekelwa kwamandla wento.Ngokuvamile uhhafu wesisindo unikeza ugongolo oluqinile kancane.
Ngokusebenzisa i-surface grinder, ama-rails angancishiswa abe yi-H-shape ene-sidewall web phakathi kwezindiza zokuxhumana zamabhola (mhlawumbe banamaphuzu angu-4, kodwa uthola umqondo).I-TIL: Amaphrofayili e-Titanium (alloy) akhona futhi: https://www.plymouth.com/products/net-and-near-net-shapes/ kodwa kufanele ubuze inani.
Bese kuba nenkinga ngePlymouth Tube Company of America lol.Ngemva kokuhlola nge-virustotal, zonke izivivinyo azizange zibonise izinkinga, ngaphandle kokuthi "I-Yandex Safe Browsing", ngokubona kwakhe, iqukethe i-malware.
Ngiphinde ngicabange ukuthi amalayini alayini abukeka esinda futhi ngiyawuthanda umqondo wamareyili ensimbi ahlanganisiwe.Ngisho, lokhu kungenxa ye-3DP, hhayi i-grinder - ungalahlekelwa isisindo esiningi.Noma sebenzisa amasondo e-urethane/epulasitiki bese ugibela uqonde ku-aluminium?
Asethembe ukuthi akekho ozama ukuyakha ngaphandle kokuthi BeKukhona ukuphawula okuthakazelisayo ekubuyekezweni kwevidiyo mayelana nokusetshenziswa kwe-carbon fiber.Manje cabanga ngomshini we-eksisi we-5-6 ongakwazi ukugoqa i-mandrel ephrintiwe ye-3D endaweni elungiselelwe.Ayikwazanga ukuthola ulwazi oluningi mayelana nephrojekthi yokugoqa i-CF… mhlawumbe kunjalo?https://www.youtube.com/watch?v=VEGMEFynPKs
Awuzange uyifunde ngokucophelela, kodwa ingabe ithrekhi ngokwayo ayiqinile ngokwanele?Ingabe udinga ngempela okuthile okungaphezu nje kukabakaki wekhona wokunamathisela ama-handrails kuma-side rails?
Umcabango wami wokuqala kwakuwukusika isisindo sibe uhhafu futhi ngokuphendula onxantathu baphume emakhoneni esikhundleni samashubhu, kodwa uqinisile...
Ingabe kudingeka ukuqina kwe-torsional okungaka kulolu hlelo lokusebenza?Uma kunjalo, khweza ubakaki “ngaphakathi” ekhoneni, mhlawumbe ngezikulufo ezisetshenziselwa ojantshi.
FYI: Ngithole le vidiyo iwusizo emithethweni yesithupha yezakhiwo ezihlukene: https://youtu.be/cgLnADEfm6E
Ngicabanga ukuthi uma ungenawo umshini wokugaya ungahlanya ngomshini wokubhoboza futhi uvele ubhoboze osayizi abahlukene bemigodi bese usondela kakhulu kuwo.
Lokhu, vele, kuwukuthatheka okuyinqaba (“kodwa kungani?” akukaze kube ngumbuzo ovumelekile ku-HaD), kodwa kungathuthukiswa (kwenziwe kube lula) nge-algorithm yofuzo ukuze kuthuthukiswe ingxenye esebenza kahle kakhulu.Ungase ube nemiphumela engcono uma usebenzisa isitoko esiqinile futhi usivumele sisike kanye ku-X-eksisi kanye ku-Y-eksisi.
Ngiyazi ukuthi amasu e-bioevolution agcwele ulaka okwamanje, kodwa ngizofuna ama-fractals ngoba abukeka ngokwesayensi futhi awanciki ekuqageleni okuphindaphindiwe.… Manje lesi kungaba yisikole esidala njengoba sikubiza kanjalo, i-Fractal Punk 90- X?
Ngicabanga ukuthi izindleko zokusebenzisa into eqinile zizodlula kude noma yiziphi izinzuzo.Ushaye phansi iningi lempahla, okuzokwenza ibe nkulu kakhulu.
Kungani kufanele ushintshele esitokisini esiqinile?Amasu okuthuthukisa athakazelisayo asengasetshenziswa kumashubhu ayisikwele.
Futhi, mayelana nokwenza kahle kwamapayipi ayisikwele, ngicabanga ukuthi empeleni uzothola ushintsho oluncane kakhulu lwekhwalithi.Onxantathu ku-truss sebevele belungile, amaphuzu okunamathiselwe athuthuke kakhulu kwezobuchwepheshe.Uma uhumushela lokhu embuzweni wokuthi "imuphi umklamo olungele lolu hlelo lokusebenza" (njengokuhlaziywa kwesakhiwo esigcwele sephrinta ye-3D noma okuthile), yebo, ungathola nakanjani izindawo zokunciphisa isisindo.
Indlela efinyeleleka kakhudlwana yokuthuthukisa i-topology.Ngidlale ngalokhu kuphela ku-SolidWorks, kodwa ngicabanga ukuthi kukhona ama-plugin okwenza lokhu nge-FreeCAD.
Ngemva kokubuka ividiyo, kunemiphumela (ngokuqhathaniswa) efinyeleleka kalula edinga ukulungiselelwa okwengeziwe (yize, ngisho njengomnikazi womshini we-Core-XY, mina ngokwami ​​angiboni ntshisekelo kulo mgodi onogwaja):
- Isondeze ujantshi eceleni ukuze uqine kangcono (okwamanje izoba nokuchezuka okukhulu kwe-beam kanye nokuchezuka kwe-strut efakwe kuyo)
- I-Classical truss optimization: Idizayini ye-truss truss ayizange ithuthukiswe, futhi nangaphandle kwemizamo yokusebenzisa amathuluzi okuthuthukisa athuthukile, ukwakheka kwe-truss kuyinkambu ethuthuke kakhulu.Ngemva kokufunda izincwadi zokuklama ibhuloho, cishe wayengakwazi ukunciphisa isisindo ngenye ingxenye yesithathu ngaphandle kokulahlekelwa ukuqina.
Ngenkathi ekusebenzeni isivele ilula impela (futhi ibonakala iqinile ngokwanele ukuthi ingathinteki ukuphindaphinda), angiboni iphuzu ekuyithuthukiseni ngokuqhubekayo, okungenani ngaphandle kokubhekana nenkinga yesisindo sesitimela kuqala (njengoba abanye abantu besho).
“Ngemva kokufunda izincwadi zokuklama ibhuloho, kungenzeka anciphise isisindo ngenye ingxenye yesithathu ngaphandle kokudela ukuqina.”
Sika *isisindo*?Ngiyavuma ukuthi mhlawumbe wandisa *amandla*, kodwa isisindo esengeziwe sasivelaphi?Iningi lensimbi esele isetshenziselwa ama-rails, hhayi ama-trusses.
Sebenzisa izikulufu ze-aluminium ezifanayo ezisetshenziswa abathandi be-RC futhi ubeke phansi imihlahlandlela eqondile ukuze ukwazi ukushefa amagremu ambalwa.
O, futhi ngendlela, esithangamini sezimoto cishe eminyakeni eyishumi edlule kwatholakala ukuthi ukugcwalisa imingcele ngegwebu kungakhuphula kakhulu ukuqina kwezinye izimoto (ukuthuthukisa ukuphatha, njll.)
Ngakho-ke kungase kube umbono ukuzama ukusebenzisa ishubhu eludongeni elilula kakhulu, mhlawumbe ipuleti lokukhweza eliqinile, eliqinile, eliqinile noma elifanayo eligcwele igwebu elikhulayo.
Lokhu kufanele kube sobala, kodwa ngokuqinisekile ufuna ukwenza noma yiluphi uhlobo lokushisa, ukuncibilika, ukushisa, ukushisa, izinhlobo ezishisayo ngaphambi kokuba i-foam igcwale.
Imboni ye-aerospace ifana namaphaneli ahlanganisiwe wekhekheba lezinyosi.I-carbon fiber encane kakhulu noma umzimba we-aluminium onesakhiwo esijwayelekile sekhekheba lezinyosi se-Kevlar phakathi.Iqinile kakhulu futhi ilula kakhulu.
Angicabangi ukuthi amapayipi amancane odonga iyona ndlela okufanele uhambe ngayo.Angikaze ngibe umlandeli omkhulu we-CFRP ebunjwe ngomjovo (ilahlekelwa izinzuzo eziningi ze-UD CFRP, okuyisilinganiso eside sobude be-filament obunikeza amandla amakhulu kangaka), futhi i-aluminium ngokuvamile ayithengiswa izacile ngokwanele ukuba yonge. isisindo kakhulu.Ngicabanga ukuthi kungenzeka ukuyigaya kahle kakhulu, kodwa ukungqongqoza kungase kuvimbele ukugaywa kahle ngokwanele.
Ukube bengiya kuleyo ndawo, bengizothatha ishidi elincanyana le-CFRP elineziqondiso ezimbili kwenye yezindawo engizikhonzile zomkhiqizo wesabelomali, ngilinqume libe ngosayizi, ngilinamathisele kugwebu oluvaliwe lweseli, mhlawumbe ngiligoqe ngezigaba ze-CFRP noma ze-fiberglass. .Lokhu kuzoyinikeza ukuqina okwengeziwe ekunyakazeni nasekusekeleni i-printhead shafts, futhi i-wrapper izoyinika ukuqina okwanele kwe-torsional ukuze imelane nanoma yiziphi izikhathi ezincane eziphumayo kusukela ku-printhead.
Ngikushayela ihlombe umzamo nobuhlakani, kodwa angikwazi ukuzibamba kodwa ngizwa kuwukumosha amandla ukuzama ukukhama konke okokugcina kuphume edizayini engadizayinelwe ikusasa nhlobo.Okuwukuphela kwendlela engenzeka yokuya phambili ukuphrinta kwe-3D okuhambisanayo okukhulu ukunciphisa izikhathi zokuphrinta.Uma othile egebenga yonke le miklamo, ngeke kube khona ukuncintisana.
Kodwa ngicabanga ukuthi ngokombono wesakhiwo kungenzeka ukuthi inkinga enkulu kakhulu - amandla e-carbon fibre ikakhulukazi kuleyo micu emide evalwe ngokugcwele futhi uyisika yonke ukuze uyenze ibe lula futhi awusebenzisi ngendlela efanayo ukuqinisa okuwusizo - manje. ukwakha “ipayipi” noma i-CF truss eluka lapho uyidinga khona, isebenza ngendlela efanele, kungaba kuhle kakhulu njengoba benerutha ye-CNC lapho bengaqopha khona inhloko ye-extrusion.
Ukuzama ukuthola ukuvumelana phakathi kokwenza okushoyo (okuyindlela engcono kakhulu) kanye nokuthatha indlela ye-DIY elula kungenye yezingxabano zokusebenzisa lokho ngezinye izikhathi okubizwa ngokuthi i-carbon fibre.Kodwa ngicabanga ukuthi ngithole umqondo wokuzama isimo esifanayo esiyisisekelo, kuphela ku-Zr magnesium alloy (noma enye ingxube ye-magnesium enamandla kakhulu).Ama-alloys amahle e-magnesium anenani eliphakeme lamandla esisindo kune-aluminium.Azikabi "namandla" njenge-carbon fiber uma ngikhumbula kahle, kodwa ziqinile kakhulu, engicabanga ukuthi zizokwenza umehluko kulolu hlelo lokusebenza.
Ngiyangabaza ukuthi ngempela “ilula kuneshubhu ye-carbon fiber” – ngisho ukuthi iwuhlobo lwefayibha yekhabhoni, inamandla futhi ilula kunezinto ezifana ne-aluminium.
Sisebenzise amashubhu e-CF ambalwa kuphrojekthi eyayiyiphepha elincane (ngokoqobo) futhi inamandla kakhulu kunokulingana kwe-aluminiyamu ewugqinsi, esindayo, kungakhathaliseki ukuthi zingaki izimbobo zesivinini obufuna ukuzengeza.
Ngicabanga ukuthi “ngoba ngingakwazi”, “ngoba kubukeka kupholile”, mhlawumbe “ngoba angikwazi ukukhokhela ishubhu le-CF” noma mhlawumbe “ngoba sikwenza ngeshubhu elihluke ngokuphelele/elingafaneleki CF Qhathanisa nezinkambiso.
Chaza “Okunamandla” – njengegama, kuhambisana nezimo, ingabe ngempela uhlose ukuqina, amandla okukhiqiza, njll.?