Xaiv lub tshuab luam ntawv 3D tuaj yeem ua qhov sib txawv rau koj cov haujlwm. Koj xav tau cov ntawv luam muaj zog zoo, cov txiaj ntsig sai, thiab cov tshuab siv txhim khu kev qha. Yog tias koj xaiv qhov tsis yog, koj yuav nkim sijhawm thiab cov ntaub ntawv. Xav txog koj tus kheej cov kev xav tau xaiv 3D tshuab luam ntawv. Phim cov yam ntxwv ntawm txhua lub tshuab luam ntawv 3D rau koj cov hom phiaj. Koj tsim nyog cov cuab yeej uas pab koj ua tiav.
Txhais koj cov kev xav tau
Ua ntej koj yuav lub tshuab luam ntawv 3D, koj yuav tsum paub meej qhov koj xav kom ua tiav. Kauj ruam no yuav pab koj kom tsis txhob yuam kev yuam kev thiab paub tseeb tias koj tau txais txiaj ntsig zoo tshaj plaws rau koj cov dej num.
Siv cov ntaub ntawv
Xav txog yuav ua li cas koj npaj yuav siv koj lub tshuab luam ntawv 3D. Koj puas xav tsim cov qauv yooj yim rau kev lom zem, lossis koj puas xav tau cov qauv ntxaws ntxaws rau kev ua haujlwm lossis tsev kawm ntawv? Koj siv rooj plaub uas koj txiav txim siab koj ua. Piv txwv li:
- Yog tias koj xav luam tawm cov khoom ua si lossis dai kom zoo, koj tuaj yeem xaiv tus qauv theem pib.
- Yog tias koj xav tau cov khoom lag luam engineering, koj yuav tsum nrhiav lub tshuab luam ntawv uas muaj cov qauv siab thiab txhawb cov ntaub ntawv muaj zog.
- Yog tias koj npaj yuav siv nws hauv chav kawm, koj xav tau lub tshuab uas muaj kev nyab xeeb thiab yooj yim siv.
Tswv yim: Sau koj cov ntaub ntawv siv tseem ceeb. Qhov no yuav pab koj tsom ntsoov thaum koj sib piv txawv luam ntawv.
Lub Hom Phiaj
Teem cov hom phiaj ntshiab rau koj cov phiaj xwm 3D. Nug koj tus kheej seb koj xav ua dab tsi thiab vim li cas. Koj puas xav tau cov txiaj ntsig sai, lossis yog qhov tseem ceeb tshaj? Koj puas xav sim nrog cov khoom sib txawv, lossis koj xav tau lub tshuab txhim khu kev qha rau kev siv txhua hnub?
Nov yog qee cov lus nug los coj koj:
- Cov khoom loj twg koj xav luam tawm?
- Koj yuav siv lub tshuab luam ntawv ntau npaum li cas?
- Koj puas yuav tsum luam tawm nrog cov ntaub ntawv tshwj xeeb zoo li yoog raws lossis cua sov {{ove} tiv taus plastics?
- Puas yog suab nrov theem tseem ceeb rau koj qhov chaw ua haujlwm?
Thaum koj teb cov lus nug no, koj yuav pom cov qauv twg uas tseem ceeb tshaj plaws. Koj tseem yuav zam kev them nyiaj rau koj tsis xav tau. Kev txhais koj cov kev xav tau muab kev ntseeg siab thiab pab koj xaiv cov tshuab luam ntawv 3D uas phim koj cov hom phiaj.
Qhov tseem ceeb hauv kev xaiv 3D tshuab luam ntawv
Thaum koj xav tau cov txiaj ntsig zoo tshaj plaws los ntawm koj lub tshuab luam ntawv 3D, koj yuav tsum saib ntawm ntau qhov tseem ceeb los xav txog. Txhua tus cuam tshuam rau koj qhov project txoj kev vam meej nyob rau hauv txoj kev sib txawv. Cia peb tshawb nrhiav vim li cas cov teeb meem no thiab yuav ua li cas lawv cov duab koj cov ntawv luam tawm.
Sau cov kev daws teeb meem
Daws teeb meem txiav txim siab yuav ua li cas du thiab ntxaws koj cov khoom luam tawm saib. Yog tias koj xav tau cov npoo ntse thiab cov ntsiab lus zoo, koj xav tau kev daws teeb meem siab. Kev daws teeb meem tsawg tuaj yeem ua rau koj cov ntawv luam tawm ntxhib lossis block. Koj yuav tsum saib xyuas kev daws teeb meem vim tias nws tswj hwm qhov precision ntawm txhua txheej. Piv txwv li, lub tshuab luam ntawv nrog 50-micron daws teeb meem tuaj yeem tsim ntau cov ntsiab lus tshaj ib qho nrog 50-micron daws teeb meem. Yog tias koj npaj siab luam cov xwm txheej me, cov hniav nyiaj hniav kub, lossis ntu uas yuav tsum haum ua ke, kev daws teeb meem siab yog qhov yuav tsum tau ua. Thaum koj xaiv lub tshuab luam ntawv 3D, ib txwm kuaj cov kev daws teeb meem. Qhov no yuav pab koj kom tsis txhob poob siab thiab tau txais qhov tseeb koj xav tau.
SAU CEEV CEEV
Print ceev qhia koj sai npaum li cas koj lub tshuab luam ntawv tuaj yeem ua tiav txoj haujlwm. Yog tias koj xav tau cov txiaj ntsig tau nrawm, koj xav tau lub tshuab luam ntawv nrog nrawm dua. Txawm li cas los xij, ceev ceev yuav txo qis qhov zoo ntawm koj cov ntawv luam tawm. Koj yuav tsum sib npaug nrawm thiab daws teeb meem. Yog tias koj maj, koj yuav plam kev nthuav dav. Yog tias koj mus qeeb, koj tau txais qhov zoo dua tab sis tos ntev. Xav txog koj cov phiaj xwm kev tshaj tawm hnub kawg thiab ntau npaum li cas koj tuaj yeem siv tos cov luam tawm. Kev luam tawm ceev ceev pab dawb pab nrog loj batches lossis prototypes, tab sis nco ntsoov xyuas yog tias lub tshuab luam ntawv tuaj yeem ua kom zoo daws teeb meem.
Kev ntseeg tau
Kev ntseeg tau txhais tau tias koj lub tshuab luam ntawv ua haujlwm tau zoo txhua zaus koj siv nws. Koj tsis xav kom cov ntawv luam tsis tau lossis kho tas mus li. Cov Ntawv Luam Ntawv Txuag Tseg koj lub sijhawm, nyiaj, thiab ntxhov siab. Yog tias koj npaj siv koj lub tshuab luam ntawv feem ntau, kev ntseeg tau yuav ua qhov tseem ceeb tshaj. Koj yuav tsum nyeem thiab saib rau luam ntawv paub txog kev ua haujlwm ruaj khov. Ib qho kev txhim khu kev qha 3DTher ua rau koj tsom mus rau koj cov phiaj xwm, tsis yog daws teeb meem.
Cov khoom siv tau sib xws
Cov ntaub ntawv sib raug zoo qhia koj seb hom filament lossis resin koj lub tshuab luam ntawv tuaj yeem siv tau. Qee cov luam ntawv tsuas ua haujlwm nrog cov ntaub ntawv yooj yim, thaum lwm tus txhawb nqa cov ntaub ntawv siab heev li kev yoog raws lossis cua sov {1} {reawist filaments. Koj yuav tsum tau saib xyuas cov khoom siv tau vim tias nws cuam tshuam dab tsi koj tuaj yeem tsim tau. Yog tias koj xav luam cov khoom muaj zog lossis sim ua cov ntaub ntawv tshiab, khaws lub tshuab luam ntawv uas txhawb ntau yam. Qhov no muab koj txoj kev ywj pheej ntxiv thiab cov txiaj ntsig zoo rau cov haujlwm sib txawv.
Yooj yim siv
Yooj yim ntawm kev siv ua rau koj cov ntawv luam tawm du thiab ntxhov siab {0} free} dawb. Yog tias koj tshiab rau 3D luam tawm, koj xav tau lub tshuab uas yooj yim los teeb tsa thiab ua haujlwm. Nta xws li touchscreen tswj, kev coj kev teeb tsa, thiab meej cov lus qhia pab ntau. Txawm hais tias koj muaj kev paub, yooj yim - rau -}} siv cov tshuab luam ntawv txuag koj lub sijhawm. Koj tuaj yeem tsom rau kev tsim thiab luam ntawv, tsis yog daws teeb meem tsis raug.
TSWV YIM: Xaiv lub tshuab luam ntawv nrog tus neeg siv - Tus phooj ywg interface. Qhov no yuav pab koj kom zam dhau kev ua yuam kev thiab txaus siab rau cov txheej txheem ntxiv.
Kho
Txij Nkawm Koj Lub Tshuab Luam Ntawv khiav zoo. Qee lub tshuab luam ntawv yuav tsum tau ntxuav, ib feem hloov, lossis software hloov tshiab. Yog tias koj xaiv lub tshuab luam ntawv uas yog ib qho nyuaj rau kev tswj hwm, koj yuav ntsib ntau dua sij hawm. Kev kho yooj yim txhais tau tias koj siv sijhawm tsawg dua kev txhim kho thiab ntau lub sijhawm luam ntawv. Saib rau luam tawm nrog cov khoom nkag thiab cov lus qhia meej. Qhov no yuav pab koj kom koj lub tshuab nyob rau hauv cov duab sab saum toj.
Software
Software tswj tau li cas koj npaj thiab xa cov ntaub ntawv rau koj lub tshuab luam ntawv. Cov software zoo ua nws yooj yim rau hlais cov qauv, kho cov chaw, thiab saib xyuas cov ntawv luam tawm. Yog tias cov software nyuaj siv lossis tsis muaj cov nta, koj yuav tawm tsam kom tau txais cov txiaj ntsig koj xav tau. Koj yuav tsum xaiv lub tshuab luam ntawv uas ua haujlwm nrog txhim khu kev qha, zoo {}}} txhawb software. Qhov no yuav pab koj kom tau txais ntau tshaj plaws ntawm koj lub tshuab thiab tsis txhob muaj kev ntxhov siab.
Lub tshuab luam ntawv loj
Tshuab luam ntawv loj cuam tshuam dab tsi koj tuaj yeem tsim tau. Yog tias koj xav luam cov khoom loj, koj xav tau lub tshuab luam ntawv nrog lub ntim tsim loj. Cov luam ntawv me ua haujlwm tau zoo rau tej yam me me lossis qhov chaw me me. Koj yuav tsum phim lub tshuab luam ntawv loj rau koj cov hom phiaj txheej txheem. Xav txog qhov chaw hauv koj qhov chaw ua haujlwm, ib yam nkaus. Lub tshuab luam ntawv loj xav tau ntau chav thiab tej zaum yuav nyuaj txav.
Teem nyiaj
Kev siv nyiaj yog ib qho tseem ceeb tshaj plaws los txiav txim siab. Koj xav tau tus nqi zoo tshaj plaws rau koj cov nyiaj. Cov luam tawm kim feem ntau muaj cov kev daws teeb meem siab dua, zoo dua qub, thiab ntau tus nta. Txawm li cas los xij, koj tuaj yeem nrhiav cov kev xaiv zoo ntawm tus nqi qis yog tias koj tsom mus rau koj cov kev xav tau tseem ceeb. Teem cov peev nyiaj meej ua ntej koj yuav khoom. Qhov no pab koj zam kev ua kom zoo thiab ua kom koj tau txais lub tshuab luam ntawv uas haum rau koj cov hom phiaj.
Nco ntsoov: txoj cai 3D tshuab luam ntawv sib npaug kev daws teeb meem, ceev, kev ntseeg tau, thiab cov khoom siv sib xyaw. Thaum koj nkag siab yog vim li cas txhua qhov teeb meem tseem ceeb, koj ua cov kev xaiv smarter thiab tau txais cov txiaj ntsig zoo dua.
Cov Hom Ntawm 3D Luam Ntawv
Koj yuav tsum paub txog lub ntsiab 3D luam ntawv. Txhua hom muaj nws cov ntsiab lus zoo. Xaiv txoj cai pab koj ua haujlwm zoo dua thiab ua tiav sai dua.
FDM
Fused Deposition Modeling (FDM) yog hom siv feem ntau. Koj muab cov ntaub yas tso rau hauv lub tshuab luam ntawv. Lub tshuab luam ntawv melts cov ntsiab lus thiab muab tso rau hauv txheej. FDM yog qhov kev xaiv zoo yog tias koj xav txuag nyiaj. Cov luam ntawv no zoo rau cov neeg pib tshiab, hobbyists, thiab cov tsev kawm ntawv. Koj tuaj yeem ua cov khoom loj dua thiab siv ntau yam plastics. FDM yog qhov zoo rau cov qauv ceev thiab cov duab yooj yim. Yog tias koj xav sim yam tshiab lossis kawm, FDM yog pheej yig thiab hloov tau.
Cov lus qhia: FDM luam tawm yog yooj yim los saib xyuas ntawm. Koj tuaj yeem kho feem ntau cov teeb meem los ntawm koj tus kheej.
Tshuab
Cov hnub qub (SLA) siv cov kua resin thiab lub teeb kom ua cov khoom. Hom no muab koj du thiab cov ntawv luam kom ntxaws. Xaiv SLA yog tias koj xav tau cov ntsiab lus zoo heev. Cov kws ua yeeb yam, engineers, thiab kws kho hniav siv SLA rau tej yam me me, yam kom ntxaws. Yog tias koj xav luam cov hniav nyiaj hniav kub, cov duab me me, lossis cov pwm pob, SLA yog qhov zoo tshaj. Cov ntawv luam tawm du thiab tshaj lij. Tab sis SLA cov tshuab luam ntawv yuav tsum tau kev saib xyuas ntau dua thiab koj yuav tsum tuav Resin kom nyab xeeb.
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FDM |
Tshuab |
|---|---|
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Tus nqi qis |
Nthuav dav |
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Yooj yim siv |
Smoothher tshwm sim |
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Tsim tsim loj ntim |
Cov ntim me me tsim |
Lwm Hom
Muaj lwm hom li sles (xaiv laser sintering) thiab DLP (cov teeb xim digital). Cov no muaj cov nta tshwj xeeb. SLS siv cov hmoov thiab lasers kom ua kom muaj zog, cov ntu nyuaj. DLP zoo li SLA tab sis siv ib qho projector thiab printms ceev. Koj yuav tsum saib cov no yog tias koj xav tau cov khoom tawv lossis cov khoom muaj zog. Feem ntau cov pib pib tsis xav tau cov no, tab sis lawv pab nrog cov haujlwm tshwj xeeb.
Nco tseg: Yuav tsum khaws cov tshuab luam ntawv uas haum rau koj qhov project. Txoj cai hom txuag koj lub sijhawm thiab nyiaj txiag.
Nta rau saib rau thaum yuav lub tshuab luam ntawv 3D
Yuav tsum - muaj cov yam ntxwv
Koj xav tau koj lub tshuab luam ntawv 3D ua haujlwm zoo txhua lub sijhawm. Qee cov nta tseem ceeb heev. Cov txaj rhuab pab luam tawm cov ntawv lo thiab nres warping. Pib {{4 {}} leveling txuag lub sijhawm thiab ua kom cov khaubncaws sab. Kev sib txuas zoo, zoo li USB lossis wi - fi, cia koj xa cov ntaub ntawv ceev. Tus ncej muaj zog ua rau cov luam tawm khov kho thiab raug. Cov nta no pab koj zam dhau cov ntawv luam tsis zoo thiab cov khoom siv tsis zoo.
Yuav tsum - muaj cov rooj
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Yam zoo |
Vim li cas nws tseem ceeb |
|---|---|
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Lub txaj rhuab |
Nres warping, txhim kho luam tawm zoo |
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Auto - leveling |
Txuag lub sijhawm, ua kom tiav cov khaubncaws sab nraud povtseg |
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Kev sib txuas zoo |
Ua rau cov ntaub ntawv hloov mus yooj yim |
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Sab Nraud Ncej |
Khaws cov ntawv luam tawm raug thiab ruaj khov |
TSWV YIM: Tshawb xyuas yog lub tshuab luam ntawv muaj cov nta no ua ntej koj yuav. Lawv yuav luam tawm ntau dua yooj yim dua thiab zoo dua.
Zoo - rau -} muaj nta
Qee cov yam ntxwv tsis xav tau, tab sis lawv pab ntau yam. Touchscreen tswj ua teeb tsa nrawm thiab yooj yim. Cov lus qhia rhiab tsis luam tawm yog tias koj tau tawm ntawm cov khoom siv. Cov paib uas tshem tau pab koj nqa cov ntawv luam tawm yooj yim. Kev ua haujlwm ntsiag to ua rau koj chav nyob twj ywm. Cov yam ntxwv cawm lub sijhawm thiab ua luam ntawv ntau dua kev lom zem.
- Touchscreen tswj
- Filament khiav - tawm ntawm lub sensor
- Tshem Tawm Phaj
- Kev ua haujlwm ntsiag to
Tus Neeg Siv Kev
Koj xav tau lub tshuab luam ntawv 3D uas yooj yim siv. Cov menus ntshiab thiab teeb tsa yooj yim pab ntau. Cov lus qhia zoo thiab txhawb pab pab koj txhim kho cov teeb meem sai. Cov pab pawg hauv online tuaj yeem teb koj cov lus nug. Thaum koj lub tshuab luam ntawv tau yooj yim siv, koj sau ntau dua thiab kawm sai dua. Tus neeg siv kev paub zoo ua 3D luam tawm kev lom zem thiab khoom plig.
Nco ntsoov: txoj cai nta ua 3D luam tawm yooj yim thiab ua tiav.
Kev Tshawb Fawb thiab Kev Txiav Txim Siab los xaiv cov tshuab luam ntawv 3d
Xyuas
Koj xav ua kom muaj kev xaiv ntse. Nyeem cov tshuab luam ntawv 3DD cov kev tshuaj xyuas koj pab koj pom yam uas ua haujlwm thiab qhov twg tsis ua. Kev txheeb xyuas qhia koj cov txiaj ntsig tiag tiag los ntawm lwm cov neeg siv. Koj kawm txog luam ntawv zoo, nrawm, thiab kev ntseeg tau. Coob tus neeg muab cov duab thiab cov ntaub ntawv hais txog lawv cov ntawv luam tawm. Qhov no pab koj pom cov teeb meem lossis zais zais. Koj zam kev nkim nyiaj ntawm lub tshuab luam ntawv uas tsis ua tiav koj cov kev xav tau. Nco ntsoov xyuas xyuas cov chaw uas tau tso siab. Saib rau cov qauv hauv cov tswv yim, tsis yog ib qho kev xav xwb. Kev txheeb xyuas muab rau koj "Vim li cas" qab ntawm lub tshuab luam ntawv lub koob npe nrov.
TSWV YIM: Siv tshuaj xyuas kom paub cov nta thiab saib cov tshuab luam ntawv 3D uas phim koj cov hom phiaj 3D.
Ev
Koj yuav tsum tau muaj zog 3D luam ntawv pab txhawb rau kev paub zoo. Kev pab zoo txhais tau tias koj tau txais kev pab sai thaum koj ntsib teeb meem. Koj txuag lub sijhawm thiab tsis txhob xyuam xim. Kuaj xyuas yog tias lub tuam txhab muab cov lus qhia meej, kev teb sai, thiab muaj txiaj ntsig. Cov teeb meem txhawb nqa vim hais tias txawm tias cov luam ntawv zoo tshaj plaws xav tau kho lossis hloov tshiab. Yog tias koj tsis tuaj yeem tau txais kev pab, koj yuav tsum tsis txhob luam tawm lossis tsis muaj nyiaj. Kev txhawb nqa ntseeg tau muab kev ntseeg siab rau kev sim ua cov haujlwm tshiab.
Koog zej zog
Lub zej zog 3D muaj zog 3D tau kawm koj kawm thiab loj hlob. Koj pom cov lus teb rau koj cov lus nug, cov lus qhia rau cov ntawv luam tau zoo dua, thiab cov tswv yim tshiab. Ntau tus neeg siv qhia cov ntaub ntawv, chaw teeb tsa, thiab cov kev daws teeb meem online. Koj tsis tas yuav daws teeb meem ib leeg. Lub zej zog qhia koj tias vim li cas qee cov tshuab luam ntawv yooj yim los siv lossis ntau dua. Koj tau txais kev tshoov siab thiab txhim kho koj cov kev txawj ntse sai dua.
Vim li cas cov zej zog tseem ceeb
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Kev pab |
Vim li cas nws pab koj |
|---|---|
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Qhia Kev Paub |
Ua kom daws cov teeb meem sai |
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Cov Khoom Pub Dawb |
Txuag lub sijhawm thiab nyiaj txiag |
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Kev tshwm sim |
Spararks Cov tswv yim tshiab cov tswv yim |
Ua qhov kev xaiv zaum kawg
Koj xav kom paub tseeb txog koj qhov kev txiav txim siab. Pib los ntawm teev koj cov kev xav tau sab saum toj thiab cov hom phiaj. Siv tshuaj xyuas, txhawb nqa, thiab zej zog teb kom nqaim koj cov kev xaiv. Sib piv cov nta tseem ceeb thiab nqi. Nug koj tus kheej uas lub tshuab luam ntawv haum rau koj cov ntaub ntawv siv tseem ceeb thiab pob nyiaj siv. Ntseeg cov ntaub ntawv thiab cov lus qhia koj pom. Thaum koj ua raws cov kauj ruam no, koj tau txais kev ntseeg siab thiab paub yuav khoom.
Nco ntsoov: txoj kev tshawb fawb zoo ua rau cov txiaj ntsig zoo dua thiab cov qauv luam ntawv 3D ntxiv.
Koj yuav tsum phim koj cov hom phiaj thiab xav tau rau sab xis 3D luam ntawv. Ua raws li txhua kauj ruam hauv phau ntawv no kom muaj kev xaiv ntse. Thaum koj xaiv nrog kev saib xyuas, koj tau txais cov ntawv luam zoo thiab txuag sijhawm. Ua li tam sim no thiab txaus siab rau cov khoom plig ntawm ib qho kev txiav txim siab paub. Koj txoj haujlwm tom ntej yuav ua tsaug!
Cov FAQ
Dab tsi yog qhov tseem ceeb tshaj plaws hauv lub tshuab luam ntawv 3D?
Koj yuav tsum saib xyuas feem ntau txog luam tawm zoo. Kev daws teeb meem siab ua rau luam tawm du thiab cov ncauj lus kom ntxaws. Cov ntawv luam ntawv txhim khu kev qha nrog cov ntawv FRAM tsawg nres tsis ua tiav cov luam tawm. Cov ntaub ntawv pom cov neeg siv xav luam kom zoo tshaj plaws rau kev txaus siab [1].
Yuav ua li cas kuv thiaj paub yog tias lub tshuab luam ntawv 3D txhawb pab cov khoom sib txawv?
Txheeb cov khoom sib xyaw ua ke hauv lub tshuab luam ntawv specs. Saib Filament hom zoo li PLA, ABS, lossis PetG. Cov txaj rhuab thiab kho tau kub siab rau koj siv cov ntaub ntawv ntau ntxiv. Kev tshawb fawb qhia cov kev xaiv hloov tau yooj yim pab ua tiav [2].
Kuv puas tuaj yeem siv cov tshuab luam ntawv 3D muaj kev nyab xeeb hauv tsev lossis tsev kawm ntawv?
Yog lawm, koj tuaj yeem siv ib qho kev nyab xeeb. Xaiv cov tshuab luam ntawv nrog cov qauv tsim qauv thiab kev nyab xeeb nta. Ua raws li cov teeb tsa cov teeb tsa thiab ua kom koj cov chaw ntxhua khaub ncaws huv. Kev tshawb fawb qhia tau cov tshuab luam ntawv uas tau sib raug zoo los ntawm 30% [3].
Cov lus qhia: Ib txwm nyeem phau ntawv kev nyab xeeb ua ntej luam ntawv.
Kev txij nkawm 3D yuav tsum tau muaj 3D ntau npaum li cas?
Huv huv lub nozzle thiab txaj ntau. Hloov chaw hnav thaum xav tau. Cov neeg siv feem ntau siv sijhawm hauv 15 feeb txhua lub lim tiam ntawm kev saib xyuas. Yooj yim saib xyuas kom koj lub tshuab luam ntawv ua haujlwm tau zoo [4].
Ntawv Sawv cev
[1] 3D Luam Ntawv Kev Tshawb Fawb Kev Lag Luam, 2023
[2] "cov khoom sib xyaw ua ke nyob rau hauv 3D luam ntawv," cov ntawv sau ntxiv, 2022
[3] Kev Nyab Xeeb Hauv 3D Luam Ntawv Ib puag ncig, Kev Tshawb Fawb Hauv Tebchaws, 2021
[4] "3D Tshuab Luam Ntawv Kev Txij Nkawm: Tus Neeg Siv Khoom Siv," Cov Kev Tshawb Fawb Txiag Pawg, 2023




