niko.vujic/ISPITIVANJE_CVRSTOCE_FDM_3D_PRINTANOG_DIJELA
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added CAD files, fixed 2D & 3D table, added all parameter descriptions, created some pictures

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This commit is contained in:
Niko Vujic
2025-08-17 14:37:32 +02:00
parent 30bae01067
commit c90e85e133
12 changed files with 385 additions and 162 deletions
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radno/ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.aux
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@@ -15,7 +15,7 @@
\newlabel{sec:parametri_ispisa}{{3}{3}{}{section.3}{}} \newlabel{sec:parametri_ispisa}{{3}{3}{}{section.3}{}}
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\newlabel{subsec:osnovni_parametri_ispisa}{{3.1}{3}{}{subsection.3.1}{}} \newlabel{subsec:osnovni_parametri_ispisa}{{3.1}{3}{}{subsection.3.1}{}}
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\newlabel{subsec:odabir_parametara_za_testiranje}{{3.2}{3}{}{subsection.3.2}{}} \newlabel{subsec:odabir_parametara_za_testiranje}{{3.2}{3}{}{subsection.3.2}{}}
\abx@aux@cite{0}{kuznetsov2018strengthPLA} \abx@aux@cite{0}{kuznetsov2018strengthPLA}
\abx@aux@segm{0}{0}{kuznetsov2018strengthPLA} \abx@aux@segm{0}{0}{kuznetsov2018strengthPLA}
@@ -47,18 +47,26 @@
\abx@aux@cite{0}{prusaInfillPatterns} \abx@aux@cite{0}{prusaInfillPatterns}
\abx@aux@segm{0}{0}{prusaInfillPatterns} \abx@aux@segm{0}{0}{prusaInfillPatterns}
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\newlabel{subsubsec:vrsta_ispune}{{3.2.5}{6}{}{subsubsection.3.2.5}{}} \newlabel{subsubsec:vrsta_ispune}{{3.2.5}{6}{}{subsubsection.3.2.5}{}}
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\gdef \@abspage@last{8} \gdef \@abspage@last{10}

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radno/ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.blg
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@@ -1,14 +1,14 @@
[0] Config.pm:308> INFO - This is Biber 2.20 [0] Config.pm:308> INFO - This is Biber 2.20
[0] Config.pm:311> INFO - Logfile is 'ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.blg' [0] Config.pm:311> INFO - Logfile is 'ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.blg'
[49] biber:342> INFO - === Sat Aug 16, 2025, 23:39:03 [52] biber:342> INFO - === Sun Aug 17, 2025, 13:56:22
[62] Biber.pm:420> INFO - Reading 'ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bcf' [64] Biber.pm:420> INFO - Reading 'ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bcf'
[92] Biber.pm:994> INFO - Found 4 citekeys in bib section 0 [96] Biber.pm:994> INFO - Found 4 citekeys in bib section 0
[101] Biber.pm:4463> INFO - Processing section 0 [107] Biber.pm:4463> INFO - Processing section 0
[106] Biber.pm:4654> INFO - Looking for bibtex file 'literatura.bib' for section 0 [114] Biber.pm:4654> INFO - Looking for bibtex file 'literatura.bib' for section 0
[107] bibtex.pm:1713> INFO - LaTeX decoding ... [115] bibtex.pm:1713> INFO - LaTeX decoding ...
[109] bibtex.pm:1519> INFO - Found BibTeX data source 'literatura.bib' [117] bibtex.pm:1519> INFO - Found BibTeX data source 'literatura.bib'
[141] UCollate.pm:68> INFO - Overriding locale 'hr-HR' defaults 'variable = shifted' with 'variable = non-ignorable' [150] UCollate.pm:68> INFO - Overriding locale 'hr-HR' defaults 'variable = shifted' with 'variable = non-ignorable'
[141] UCollate.pm:68> INFO - Overriding locale 'hr-HR' defaults 'normalization = NFD' with 'normalization = prenormalized' [150] UCollate.pm:68> INFO - Overriding locale 'hr-HR' defaults 'normalization = NFD' with 'normalization = prenormalized'
[141] Biber.pm:4283> INFO - Sorting list 'nty/global//global/global/global' of type 'entry' with template 'nty' and locale 'hr-HR' [150] Biber.pm:4283> INFO - Sorting list 'nty/global//global/global/global' of type 'entry' with template 'nty' and locale 'hr-HR'
[146] bbl.pm:677> INFO - Writing 'ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bbl' with encoding 'UTF-8' [155] bbl.pm:677> INFO - Writing 'ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bbl' with encoding 'UTF-8'
[147] bbl.pm:780> INFO - Output to ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bbl [156] bbl.pm:780> INFO - Output to ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bbl

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radno/ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.fdb_latexmk
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@@ -1,12 +1,12 @@
# Fdb version 4 # Fdb version 4
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"literatura.bib" 1755380322.01392 1335 07fac0c7956938ac0419e63336c12310 "" "literatura.bib" 1755426102.54636 1335 07fac0c7956938ac0419e63336c12310 ""
(generated) (generated)
"ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bbl" "ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bbl"
"ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.blg" "ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.blg"
(rewritten before read) (rewritten before read)
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"/etc/texmf/web2c/texmf.cnf" 1741769514 43179 d4d8625c4224f516afc2b9ae03b45f2d "" "/etc/texmf/web2c/texmf.cnf" 1741769514 43179 d4d8625c4224f516afc2b9ae03b45f2d ""
"/usr/share/texmf/fonts/enc/dvips/base/8r.enc" 1165713224 4850 80dc9bab7f31fb78a000ccfed0e27cab "" "/usr/share/texmf/fonts/enc/dvips/base/8r.enc" 1165713224 4850 80dc9bab7f31fb78a000ccfed0e27cab ""
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@@ -41,6 +41,7 @@
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"/usr/share/texmf/fonts/vf/adobe/helvetic/phvro7t.vf" 1136768653 1372 9948cedecdb0445a3b5cf1b8a8082ab8 "" "/usr/share/texmf/fonts/vf/adobe/helvetic/phvro7t.vf" 1136768653 1372 9948cedecdb0445a3b5cf1b8a8082ab8 ""
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@@ -126,30 +127,32 @@
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"ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bcf" "ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.bcf"

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radno/ispitivanje_cvrstoce_fdm_3d_printanog_uzorka.fls
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@@ -1,4 +1,4 @@
PWD /home/marockaspark/Nextcloud/UniPu_Strojarstvo/zavrsni_rad/radno PWD /home/marockaspark/Documents/UniPu/zavrsni_rad/radno
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@@ -132,12 +132,11 @@ Parametre ispisa početno možemo podjeliti u tri glavne skupine.
\subitem Broj slojeva stijenke \subitem Broj slojeva stijenke
\end{enumerate} \end{enumerate}
\subsection{Odabir parametara za testiranje}\label{subsec:odabir_parametara_za_testiranje} \subsection{Opis relevantnih parametara ispisa}\label{subsec:odabir_parametara_za_testiranje}
Iako svaka skupina prethodno navedenih parametara utječe na čvstoću objekta, prve dvije skupine ovise samo o stroju i materijalu, te su samim time konstantne za svaku Iako svaka skupina prethodno navedenih parametara utječe na čvstoću objekta, prve dvije skupine ovise samo o stroju i materijalu, te su samim time konstantne za svaku
kombinaciju stroja i materijala. Korelaciju ćemo u ovome radu tražiti samo između parametara treće skupine, jer su parametri oblika oni koji za različite strojne kombinaciju stroja i materijala. Korelaciju ćemo u ovome radu tražiti samo između parametara treće skupine, jer su parametri oblika oni koji za različite strojne
dijelove u procesu proizvodnje istim materijalom na istom stroju diktiraju samu promjenu čvrstoće strojnog dijela.\\ dijelove u procesu proizvodnje istim materijalom na istom stroju diktiraju samu promjenu čvrstoće strojnog dijela.\\
\\
U daljnjem će tekstu biti dublje opisani parametri povezani s geometrijom objekta.\\ U daljnjem će tekstu biti dublje opisani parametri povezani s geometrijom objekta.\\
@@ -147,7 +146,6 @@ U daljnjem će tekstu biti dublje opisani parametri povezani s geometrijom objek
Visina sloja predstavlja debljinu svakog pojedinog sloja taloženog tijekom ispisa, te samim time definira "vertikalnu rezoluciju" modela. Tipične vrijednosti kreću se Visina sloja predstavlja debljinu svakog pojedinog sloja taloženog tijekom ispisa, te samim time definira "vertikalnu rezoluciju" modela. Tipične vrijednosti kreću se
između 0.1mm i 0.5mm, ovisno o željenoj kvaliteti ispisa. Manji slojevi omogućavaju veću kvalitetu ispisa te manju hrapavost površine, ali produžuju vrijeme ispisa. između 0.1mm i 0.5mm, ovisno o željenoj kvaliteti ispisa. Manji slojevi omogućavaju veću kvalitetu ispisa te manju hrapavost površine, ali produžuju vrijeme ispisa.
Što je visina sloja veća, slojevi se brže talože, ali dolazi go veće separacije slojeva i slabije adhezije među istima.\\ Što je visina sloja veća, slojevi se brže talože, ali dolazi go veće separacije slojeva i slabije adhezije među istima.\\
\\
Pogledamo li poprečni presjek u ravnini normalnoj na trag filamenta možemo vidjeti kako manje visine slojeva (za isti volumenski protok materijala) Pogledamo li poprečni presjek u ravnini normalnoj na trag filamenta možemo vidjeti kako manje visine slojeva (za isti volumenski protok materijala)
daje veću kontaktnu površinu među slojevima, te samim time i veću adheziju među slojevima i manju horizontalnu separaciju sloja.\\ daje veću kontaktnu površinu među slojevima, te samim time i veću adheziju među slojevima i manju horizontalnu separaciju sloja.\\
Varijacija presjeka u odnosu na različite visine slojeva prikazana je na slici \ref{fig:visina_sloja}.\\ Varijacija presjeka u odnosu na različite visine slojeva prikazana je na slici \ref{fig:visina_sloja}.\\
@@ -180,7 +178,6 @@ daje i veću kontaktnu površinu između slojeva.\\
Postotak ispune određuje koliko unutrašnjosti modela će biti ispunjeno materijalom. Ispuna može biti u rasponu od 0\% (šuplji model samo sa vanjskom stijenkom) Postotak ispune određuje koliko unutrašnjosti modela će biti ispunjeno materijalom. Ispuna može biti u rasponu od 0\% (šuplji model samo sa vanjskom stijenkom)
do 100\% (potpuno ispunjen model). Tipične vrijednosti za funkcionalne modele kreću se između 15\% i 60\%, dok se veće vrijednosti često koriste za dijelove malih do 100\% (potpuno ispunjen model). Tipične vrijednosti za funkcionalne modele kreću se između 15\% i 60\%, dok se veće vrijednosti često koriste za dijelove malih
poprečnih presjeka u odnosu na dimenzije mlaznice (gdje je anizotropija značajna), ili za dijelove koji trebaju podnijeti značajna mehanička opterećenja.\\ poprečnih presjeka u odnosu na dimenzije mlaznice (gdje je anizotropija značajna), ili za dijelove koji trebaju podnijeti značajna mehanička opterećenja.\\
\\
Veći postotak ispune direktno povećava masu, čvrstoću i krutost dijela, ali i povećava potrošnju materijala te značajno povećava vrijeme ispisa.\\ Veći postotak ispune direktno povećava masu, čvrstoću i krutost dijela, ali i povećava potrošnju materijala te značajno povećava vrijeme ispisa.\\
\begin{figure}[h] \begin{figure}[h]
@@ -193,7 +190,6 @@ Veći postotak ispune direktno povećava masu, čvrstoću i krutost dijela, ali
\subsubsection{Debljina gornjih i donjih slojeva}\label{subsubsec:debljina_gornjih_i_donjih_slojeva} \subsubsection{Debljina gornjih i donjih slojeva}\label{subsubsec:debljina_gornjih_i_donjih_slojeva}
Debljina gornjih i donjih slojeva definira koliko će slojeva biti potpuno ispunjeno bez strukturne ispune. Za razliku od visine slojeva (\ref{subsubsec:visina_sloja}) Debljina gornjih i donjih slojeva definira koliko će slojeva biti potpuno ispunjeno bez strukturne ispune. Za razliku od visine slojeva (\ref{subsubsec:visina_sloja})
ovdje se govori o stvarnom broju slojeva, ne o njihovoj visini.\\ ovdje se govori o stvarnom broju slojeva, ne o njihovoj visini.\\
\\
Donji slojevi ključni su za kvalitetno prijanjanje modela uz podlogu, dok gornji slojevi sprječavaju pojavu rupa ili udubljenja pri završetku ispisa.\\ Donji slojevi ključni su za kvalitetno prijanjanje modela uz podlogu, dok gornji slojevi sprječavaju pojavu rupa ili udubljenja pri završetku ispisa.\\
Tipične vrijednosti broja donjih slojeva kreće se između 2 i 4, kako bi se osigurala dobra baza za prijanjanje slojeva manjih poprečnih presjeka (slojeva sačinjenih Tipične vrijednosti broja donjih slojeva kreće se između 2 i 4, kako bi se osigurala dobra baza za prijanjanje slojeva manjih poprečnih presjeka (slojeva sačinjenih
od ispune) te osiguralo dobro prijanjanje na podlogu.\\ od ispune) te osiguralo dobro prijanjanje na podlogu.\\
@@ -213,55 +209,238 @@ Prednosti 3D ispuna su često smanjenje razine anizotropnosti materijala, te kon
mijenja, anizotropnost nije konstanta što onemogućava bilo koju vrstu proračuna ili predikcije čvrstoće strojnog dijela.\\ mijenja, anizotropnost nije konstanta što onemogućava bilo koju vrstu proračuna ili predikcije čvrstoće strojnog dijela.\\
Prikaz najpopularnijih 2D i 3D vrsta ispune nalazi se u tablicama \ref{tab:2d_ispune} i \ref{tab:3d_ispune} (preuzeto iz \cite{prusaInfillPatterns}).\\ Prikaz najpopularnijih 2D i 3D vrsta ispune nalazi se u tablicama \ref{tab:2d_ispune} i \ref{tab:3d_ispune} (preuzeto iz \cite{prusaInfillPatterns}).\\
\begin{longtable}{>{\raggedright\arraybackslash}p{4cm} >{\raggedright\arraybackslash}p{7.5cm} c} \begin{longtable}{|>{\centering\arraybackslash}m{4cm}|>{\raggedright\arraybackslash}m{7.5cm}|>{\centering\arraybackslash}m{2.5cm}|}
\caption{2D vrste ispune} \label{tab:2d_ispune} \\ \caption{2D vrste ispune} \label{tab:2d_ispune} \\
\toprule \hline
\textbf{Naziv} & \textbf{Opis} & \textbf{Slika} \\ \textbf{Naziv} & \textbf{Opis} & \textbf{Slika} \\
\midrule \hline
\endfirsthead \endfirsthead
\multicolumn{3}{c}{{\bfseries Nastavak Tablice \thetable{} – 2D vrste ispune}} \\ \multicolumn{3}{c}{{\bfseries Nastavak Tablice \thetable{} – 2D vrste ispune}} \\
\toprule \hline
\textbf{Naziv} & \textbf{Opis} & \textbf{Slika} \\ \textbf{Naziv} & \textbf{Opis} & \textbf{Slika} \\
\midrule \hline
\endhead \endhead
\hline
\bottomrule
\endfoot \endfoot
Rectlinear & Klasične izmjenične linije po sloju; vrlo brzo i pogodno za punu ispunu. & \includegraphics[width=2.5cm]{media/imgs/infills/rectlinear_infill.jpg} \\ Rectlinear &
Poravnati rectlinear & Linije u istom smjeru; učinkovito, ali slabija potpora gornjim slojevima. & \includegraphics[width=2.5cm]{media/imgs/infills/aligned_rectlinear_infill.jpg} \\ \textbf{Geometrija:} Paralelne linije koje se izmjenjuju po slojevima pod 90°.
Mreža (Grid) & Križanje linija po sloju; čvrsto, ali sporije zbog preklapanja. & \includegraphics[width=2.5cm]{media/imgs/infills/grid_infill.jpg} \\ \newline
Trokuti & Uzorak s tri smjera linija; jača unutarnja struktura. & \includegraphics[width=2.5cm]{media/imgs/infills/triangles_infill.jpg} \\ \textbf{Prednosti:} Vrlo brzo printanje, jednostavna struktura, dobra potpora.
Zvijezde & Varijanta trokuta sa šesterokrakim uzorkom; čvrsto i dekorativno. & \includegraphics[width=2.5cm]{media/imgs/infills/stars_infill.jpg} \\ \newline
Linije & Jednosmjerne linije; vrlo brzo, ali slabije za gornje površine. & \includegraphics[width=2.5cm]{media/imgs/infills/line_infill.jpg} \\ \textbf{Mane:} Ograničena čvrstoća u smjeru linija.
Koncentrični & Prati konture modela; dobar za fleksibilne ili prozirne isprinte. & \includegraphics[width=2.5cm]{media/imgs/infills/concentric_infill.jpg} \\ & \includegraphics[width=2.5cm]{media/imgs/infills/rectlinear_infill.jpg} \\
Saće (Honeycomb) & Šesterokutni uzorak s izvrsnom čvrstoćom; sporije i više materijala. & \includegraphics[width=2.5cm]{media/imgs/infills/honeycomb_infill.jpg} \\
Hilbertova krivulja & Labirintski uzorak; pogodno za lijevanje smolom, ali sporo. & \includegraphics[width=2.5cm]{media/imgs/infills/hilbert_curve_infill.jpg} \\ \hline
Arhimedove žice & Spiralne linije; fleksibilnost i dobra ispunjenost. & \includegraphics[width=2.5cm]{media/imgs/infills/archimedean_chords_infill.jpg} \\
Oktagram spirala & Ukrasni spiralni uzorak; estetski i funkcionalan za gornje slojeve. & \includegraphics[width=2.5cm]{media/imgs/infills/octagram_spiral_infill.jpg} \\ Poravnati rectlinear &
Munja (Lightning) & Granati uzorak samo za podršku gornjim slojevima; štedi materijal. & \includegraphics[width=2.5cm]{media/imgs/infills/lightning_infill.jpg} \\ \textbf{Geometrija:} Sve linije u istom smjeru u svim slojevima.
\newline
\textbf{Prednosti:} Najbrže moguće printanje.
\newline
\textbf{Mane:} Slabija potpora gornjim slojevima, manje čvrstoće.
& \includegraphics[width=2.5cm]{media/imgs/infills/aligned_rectlinear_infill.jpg} \\
\hline
Mreža (Grid) &
\textbf{Geometrija:} Dvije serije linija po sloju, pod 90°, koje se sijeku.
\newline
\textbf{Prednosti:} Više čvrstoće od rectlineara, dobra ravnoteža brzine i stabilnosti.
\newline
\textbf{Mane:} Nešto sporije od osnovnih linijskih uzoraka.
& \includegraphics[width=2.5cm]{media/imgs/infills/grid_infill.jpg} \\
\hline
Trokuti &
\textbf{Geometrija:} Uzorak s linijama pod tri kuta (60°).
\newline
\textbf{Prednosti:} Povećana čvrstoća u više smjerova.
\newline
\textbf{Mane:} Duže vrijeme printanja.
& \includegraphics[width=2.5cm]{media/imgs/infills/triangles_infill.jpg} \\
\hline
Zvijezde &
\textbf{Geometrija:} Šesterokraki uzorak nastao iz trokuta.
\newline
\textbf{Prednosti:} Dekorativan i čvrst.
\newline
\textbf{Mane:} Veća složenost, usporava ispis.
& \includegraphics[width=2.5cm]{media/imgs/infills/stars_infill.jpg} \\
\hline
Linije &
\textbf{Geometrija:} Jednosmjerne ravne linije po sloju.
\newline
\textbf{Prednosti:} Ekstremno brzo printanje.
\newline
\textbf{Mane:} Gotovo nikakva potpora gornjim slojevima.
& \includegraphics[width=2.5cm]{media/imgs/infills/line_infill.jpg} \\
\hline
Koncentrični &
\textbf{Geometrija:} Krivulje koje prate vanjske konture modela.
\newline
\textbf{Prednosti:} Idealno za fleksibilne ili transparentne materijale.
\newline
\textbf{Mane:} Lošija unutarnja čvrstoća.
& \includegraphics[width=2.5cm]{media/imgs/infills/concentric_infill.jpg} \\
\hline
Saće (Honeycomb) &
\textbf{Geometrija:} Šesterokutni uzorak poput pčelinjeg saća.
\newline
\textbf{Prednosti:} Visoka čvrstoća i otpornost na pritisak.
\newline
\textbf{Mane:} Sporo za ispis i koristi više materijala.
& \includegraphics[width=2.5cm]{media/imgs/infills/honeycomb_infill.jpg} \\
\hline
Hilbertova krivulja &
\textbf{Geometrija:} Fraktalna, labirintska linija koja ispunjava površinu.
\newline
\textbf{Prednosti:} Prikladno za smolne kalupe i ravne površine.
\newline
\textbf{Mane:} Sporo ispisivanje, niska strukturalna čvrstoća.
& \includegraphics[width=2.5cm]{media/imgs/infills/hilbert_curve_infill.jpg} \\
\hline
Arhimedove žice &
\textbf{Geometrija:} Spiralne linije koje se šire iz središta.
\newline
\textbf{Prednosti:} Fleksibilnost i ravnomjerna ispunjenost.
\newline
\textbf{Mane:} Smanjena unutarnja čvrstoća.
& \includegraphics[width=2.5cm]{media/imgs/infills/archimedean_chords_infill.jpg} \\
\hline
Oktagram spirala &
\textbf{Geometrija:} Spiralni uzorak s osam krakova.
\newline
\textbf{Prednosti:} Dekorativno i funkcionalno za gornje slojeve.
\newline
\textbf{Mane:} Manja čvrstoća unutar modela.
& \includegraphics[width=2.5cm]{media/imgs/infills/octagram_spiral_infill.jpg} \\
\hline
Munja (Lightning) &
\textbf{Geometrija:} Nasumične grane koje podupiru samo gornje slojeve.
\newline
\textbf{Prednosti:} Ekstremna ušteda materijala i vremena.
\newline
\textbf{Mane:} Gotovo nikakva unutarnja čvrstoća.
& \includegraphics[width=2.5cm]{media/imgs/infills/lightning_infill.jpg} \\
\end{longtable} \end{longtable}
\vspace{1cm} \vspace{1cm}
\begin{table}[h!] \begin{table}[H]
\centering \centering
\caption{3D vrste ispune} \caption{3D vrste ispune}
\label{tab:3d_ispune} \label{tab:3d_ispune}
\begin{tabular}{>{\raggedright\arraybackslash}p{4cm} >{\raggedright\arraybackslash}p{7.5cm} c} \begin{tabular}{|>{\center\arraybackslash}m{4cm} |>{\raggedright\arraybackslash}m{7.5cm} |>{\centering\arraybackslash}m{2.5cm}|}
\toprule \hline
\textbf{Naziv} & \textbf{Opis} & \textbf{Slika} \\ \textbf{Naziv} & \textbf{Opis} & \textbf{Slika} \\
\midrule \hline
Kockasti (Cubic) & Potpuno 3D mreža kocki; izotropna čvrstoća i mogućnost plovnosti. & \includegraphics[width=2.5cm]{media/imgs/infills/cubic_infill.jpg} \\
Potporni kockasti & Rjeđa varijanta cubic ispune; podržava samo gornje slojeve. & \includegraphics[width=2.5cm]{media/imgs/infills/support_cubic_infill.jpg} \\ Kockasti (Cubic) &
Adaptivni kockasti & Gustoća ovisi o geometriji modela; učinkovit za podršku. & \includegraphics[width=2.5cm]{media/imgs/infills/adaptive_cubic_infill.png} \\ \textbf{Geometrija:} Trodimenzionalna mreža kocki, izotropno raspoređena.
3D saće & Naizmjenični oktagoni i kvadrati stvaraju vertikalnu potporu. & \includegraphics[width=2.5cm]{media/imgs/infills/3d_honeycomb_infill.jpg} \\ \newline
Gyroid & Glatka 3D površina; izotropna čvrstoća, brzo i učinkovito, moguće lijevanje smolom. & \includegraphics[width=2.5cm]{media/imgs/infills/gyroid_infill.jpg} \\ \textbf{Prednosti:} Jednaka čvrstoća u svim smjerovima, dobra potpora.
\bottomrule \newline
\textbf{Mane:} Složeniji put ekstrudera povećava trajanje ispisa.
& \includegraphics[width=2.5cm]{media/imgs/infills/cubic_infill.jpg} \\
\hline
Potporni kockasti &
\textbf{Geometrija:} Rjeđa verzija cubic ispune s fokusom na gornju podršku.
\newline
\textbf{Prednosti:} Štedi materijal, ali osigurava stabilne vršne slojeve.
\newline
\textbf{Mane:} Lošija strukturalna čvrstoća unutar modela.
& \includegraphics[width=2.5cm]{media/imgs/infills/support_cubic_infill.jpg} \\
\hline
Adaptivni kockasti &
\textbf{Geometrija:} Varijabilna gustoća cubic ispune, ovisna o obliku modela.
\newline
\textbf{Prednosti:} Optimizirano za potporu samo gdje je potrebna.
\newline
\textbf{Mane:} Složeniji za predvidjeti i simulirati.
& \includegraphics[width=2.5cm]{media/imgs/infills/adaptive_cubic_infill.png} \\
\hline
3D saće (3D honeycomb) &
\textbf{Geometrija:} Kombinacija oktagona i kvadrata u prostornoj mreži.
\newline
\textbf{Prednosti:} Dobra vertikalna potpora i čvrstoća.
\newline
\textbf{Mane:} Sporiji ispis i kompleksniji uzorak.
& \includegraphics[width=2.5cm]{media/imgs/infills/3d_honeycomb_infill.jpg} \\
\hline
Giroidna ispuna (Gyroid infill) &
\textbf{Geometrija:} Trodimenzionalna, glatka površina bez ravnih presjeka, definirana matematičkom funkcijom.
\newline
\textbf{Prednosti:} Visoka izotropna čvrstoća, otpornost na torziju, dobar protok zraka, kontinuiran ispis bez prekida.
\newline
\textbf{Mane:} Veća potrošnja materijala i slabija podrška velikim horizontalnim ravninama.
& \includegraphics[width=2.5cm]{media/imgs/infills/gyroid_infill.jpg} \\
\hline
\end{tabular} \end{tabular}
\end{table} \end{table}
\newpage
\subsubsection{Orijentacija modela na radnoj podlozi}\label{subsubsec:orijentacija_modela_na_radnoj_podlozi}
Orijentacija modela na radnoj podlozi odnosi se na smijer u kojemu želimo da se model izrađuje. Na slici \ref{fig:orijentacija_modela_na_radnoj_podlozi} prikazan je
paralelopiped u sve tri orijentacije u odnosu na radnu podlogu.
Orijentacija izrade vrlo je bitan parametar, jer je glavni faktor koji diktira smijer anizotropije samog modela, mehanička svojstva u smijeru Z-osi
(na slici \ref{fig:orijentacija_modela_na_radnoj_podlozi} plava os) bitno su drugačija od mehaničkih svojstava u smjerovima osi paralelnih sa radnom podlogom.\\
Ako se, primjerice, dijelovi koji su izloženi savijanju ispisuju tako da se slojevi talože okomito na silu savijanja (na slici \ref{fig:orijentacija_modela_na_radnoj_podlozi}
model lijevo), doći će do loma duž slojeva. Pravilnim postavljanjem modela može se izbjeći takvo ponašanje.\\
\begin{figure}[h]
\centering
\includegraphics[width=0.9\textwidth]{media/imgs/parameters_description/orijentacija_modela_na_radnoj_podlozi.jpg}
\caption{3D model paralelopipeda prikazan u sve tri orijentacije u odnosu na podlogu.}
\label{fig:orijentacija_modela_na_radnoj_podlozi}
\end{figure}
\subsubsection{Broj slojeva stijenke}\label{subsubsec:broj_slojeva_stijenke}
Broj slojeva stijenke definira koliko će puta mlaznica napraviti kružni ispis oko konture modela, stvarajući vanjski zid modela. Povećanjem broja stijenki smanjuje
se oslanjanje na unutarnju ispunu, što je korisno kod tankih ili strukturno osjetljivih modela. U kombinaciji s visokom širinom ekstruzije (\ref{subsubsec:sirina_ekstruzije})
i niskom visinom sloja (\ref{subsubsec:visina_sloja}) broj stijenki čini ključni parametar za poboljšanje čvrstoće modela.\\
\begin{figure}[h]
\centering
\includegraphics[width=0.9\textwidth]{media/imgs/parameters_description/broj_slojeva_stijenke.jpg}
\caption{3D model paralelopipeda podešenog na 2, 4 i 6 slojeva stijenke.}
\label{fig:broj_slojeva_stijenke}
\end{figure}
%---------------------------------------------------------------------
%----------------------LITERATURA-------------------------------------
%---------------------------------------------------------------------
\newpage \newpage
\newpage \newpage
\printbibliography[title={Literatura}] \printbibliography[title={Literatura}]

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