{"id":1298,"date":"2026-09-02T02:21:23","date_gmt":"2026-09-02T02:21:23","guid":{"rendered":"https:\/\/zscncpack.com\/?p=1298"},"modified":"2026-09-02T02:40:26","modified_gmt":"2026-09-02T02:40:26","slug":"how-to-remove-cnc-undercuts-from-packaging-part-designs","status":"publish","type":"post","link":"https:\/\/zscncpack.com\/cs\/how-to-remove-cnc-undercuts-from-packaging-part-designs\/","title":{"rendered":"Jak odstranit CNC pod\u0159ez\u00e1vky z n\u00e1vrh\u016f obalov\u00fdch d\u00edl\u016f"},"content":{"rendered":"<p>Stoj\u00ed n\u00e1klady na zak\u00e1zkovou n\u00e1strojovou v\u00fdrobu a ne\u00fasp\u011b\u0161n\u00e9 kontroly DFM zpo\u017ed\u011bn\u00ed va\u0161ich obalov\u00fdch d\u00edl\u016f?<\/p>\n<p>Zbyte\u010dn\u00e9 pod\u0159\u00edznut\u00ed m\u016f\u017ee zv\u00fd\u0161it slo\u017eitost CNC obr\u00e1b\u011bn\u00ed t\u00edm, \u017ee omezuje p\u0159\u00edstup fr\u00e9zy, vy\u017eaduje speci\u00e1ln\u00ed n\u00e1stroje, dodate\u010dn\u00e9 nastavov\u00e1n\u00ed nebo alternativn\u00ed strategie obr\u00e1b\u011bn\u00ed. U komponent\u016f obalov\u00fdch stroj\u016f m\u016f\u017ee p\u0159ezkoum\u00e1n\u00ed t\u011bchto vlastnost\u00ed b\u011bhem DFM pomoci zjednodu\u0161it v\u00fdrobu bez zm\u011bny funk\u010dn\u00edho z\u00e1m\u011bru designu.<\/p>\n<p>In this guide, you&#8217;re going to learn the exact <strong>Design for Manufacturability (DFM)<\/strong> strategie, jak odstranit pod\u0159\u00edznut\u00ed, optimalizovat p\u0159\u00edstup k n\u00e1stroji a sn\u00ed\u017eit n\u00e1klady na v\u00fdrobu.<\/p>\n<p>Let&#8217;s dive right in!<\/p>\n<h2>Porozum\u011bn\u00ed CNC pod\u0159\u00edznut\u00edm v n\u00e1vrz\u00edch obalov\u00fdch d\u00edl\u016f<\/h2>\n<h3>Co je CNC pod\u0159\u00edznut\u00ed v vlo\u017ek\u00e1ch a form\u00e1ch pro obaly?<\/h3>\n<p>CNC pod\u0159\u00edznut\u00ed je jak\u00e1koli z\u00e1\u0159ez, p\u0159evis nebo vnit\u0159n\u00ed kapsa na obalov\u00e9m d\u00edlu, ke kter\u00e9 standardn\u00ed p\u0159\u00edm\u00e9 \u0159ezac\u00ed n\u00e1stroje nemohou dos\u00e1hnout z p\u0159\u00edm\u00e9 horn\u00ed orientace. P\u0159i navrhov\u00e1n\u00ed zak\u00e1zkov\u00e9ho p\u011bnov\u00e9ho obalov\u00e9ho materi\u00e1lu, termoformovac\u00edch hlin\u00edkov\u00fdch forem nebo ochrann\u00fdch kryt\u016f se pod\u0159\u00edznut\u00ed vyskytuj\u00ed v\u017edy, kdy\u017e geometrie blokuje p\u0159\u00edmou vertik\u00e1ln\u00ed dr\u00e1hu Z-ov\u00e9 osy \u0159ezac\u00edho n\u00e1stroje.<\/p>\n<p>Pokud n\u00e1stroj nem\u016f\u017ee udr\u017eet p\u0159\u00edm\u00fd p\u0159\u00edstup v linii hlavn\u00edho p\u0159\u00edstupov\u00e9ho sm\u011bru, standardn\u00ed fr\u00e9zy zanech\u00e1vaj\u00ed neobroben\u00fd materi\u00e1l, co\u017e naru\u0161uje tolerance d\u00edlu.<\/p>\n<h3>Pro\u010d pod\u0159\u00edznut\u00ed zp\u016fsobuj\u00ed chyby p\u0159i obr\u00e1b\u011bn\u00ed v 3-ose CNC<\/h3>\n<p>Standardn\u00ed 3-ose CNC obr\u00e1b\u011bn\u00ed pracuje pod\u00e9l t\u0159\u00ed line\u00e1rn\u00edch os: X (ze strany na stranu), Y (zep\u0159edu dozadu) a Z (nahoru a dol\u016f). Proto\u017ee hlava stroje z\u016fst\u00e1v\u00e1 striktn\u011b vertik\u00e1ln\u00ed, geometrie s v\u00fdstupky na stran\u00e1ch p\u0159edstavuj\u00ed hlavn\u00ed v\u00fdrobn\u00ed p\u0159ek\u00e1\u017eky.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Kolize n\u00e1stroj\u016f:<\/strong> Posunut\u00ed standardn\u00ed koncovky do v\u00fdstupku na stran\u011b nut\u00ed h\u0159\u00eddel nebo svorku n\u00e1stroje narazit do horn\u00edch st\u011bn d\u00edlu.<\/li>\n<li><strong>Zachycen\u00fd materi\u00e1l:<\/strong> Vertik\u00e1ln\u00ed fr\u00e9zy jednodu\u0161e p\u0159esko\u010d\u00ed skryt\u00e9 p\u0159evisy, zanech\u00e1vaj\u00edce neobroben\u00fd materi\u00e1l, kter\u00fd br\u00e1n\u00ed vlo\u017een\u00ed elektronick\u00fdch za\u0159\u00edzen\u00ed nebo v\u00fdrobk\u016f do fin\u00e1ln\u00edho obalu.<\/li>\n<li><strong>V\u00e1\u017en\u00e9 chv\u011bn\u00ed a l\u00e1m\u00e1n\u00ed n\u00e1stroj\u016f:<\/strong> Nucen\u00ed ne- pod\u0159\u00edznut\u00fdch koncov\u00fdch fr\u00e9z do bo\u010dn\u00edch v\u00fdstupk\u016f vytv\u00e1\u0159\u00ed nadm\u011brn\u00e9 bo\u010dn\u00ed t\u0159en\u00ed, co\u017e vede k drsn\u00fdm povrchov\u00fdm \u00faprav\u00e1m a zlomen\u00fdm bit\u016fm.<\/li>\n<li><strong>Zv\u00fd\u0161en\u00e9 n\u00e1klady na nastavov\u00e1n\u00ed:<\/strong> \u0158e\u0161en\u00ed necht\u011bn\u00fdch pod\u0159\u00edznut\u00ed vy\u017eaduje ru\u010dn\u00ed p\u0159em\u00edst\u011bn\u00ed nebo dodate\u010dn\u00e9 up\u00edn\u00e1n\u00ed, \u010d\u00edm\u017e se zvy\u0161uj\u00ed hodiny stroje a m\u00edra odpadu.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Obaly Nejv\u00edce n\u00e1chyln\u00e9 k pod\u0159\u00edznut\u00ed<\/h3>\n<p>N\u011bkter\u00e9 n\u00e1vrhy obal\u016f zp\u016fsobuj\u00ed probl\u00e9my s pod\u0159\u00edznut\u00edm mnohem \u010dast\u011bji ne\u017e jin\u00e9 kv\u016fli jejich funk\u010dn\u00edmu uchov\u00e1n\u00ed a slo\u017eit\u00e9 geometrii.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Obalov\u00e1 aplikace<\/th>\n<th style=\"text-align: left;\">B\u011b\u017en\u00fd prvek pod\u0159\u00edznut\u00ed<\/th>\n<th style=\"text-align: left;\">Dopad obr\u00e1b\u011bn\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Na m\u00edru vyroben\u00e9 p\u011bnov\u00e9 vlo\u017eky<\/strong><\/td>\n<td style=\"text-align: left;\">Hlubok\u00e9 otvory na prsty, bo\u010dn\u00ed dr\u00e1\u017eky pro uchopen\u00ed a z\u00e1\u0159ezy na spodn\u00edm okraji<\/td>\n<td style=\"text-align: left;\">T\u0159en\u00ed n\u00e1stroje na stopce trh\u00e1 m\u011bkkou p\u011bnu a ne\u00fapln\u00e9 profily dutin<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Termoformovac\u00ed t\u00e1c<\/strong><\/td>\n<td style=\"text-align: left;\">Svisl\u00e9 bo\u010dn\u00ed st\u011bny 90\u00b0, z\u00e1padkov\u00e9 v\u00fdstuhy a v\u00fdstuhy pro skladov\u00e1n\u00ed<\/td>\n<td style=\"text-align: left;\">Tvarov\u00e1n\u00ed formy zachycuj\u00edc\u00ed vakuov\u00e9 f\u00f3lie a br\u00e1n\u00edc\u00ed vysunut\u00ed d\u00edlu<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Pevn\u00e9 kryty<\/strong><\/td>\n<td style=\"text-align: left;\">Vnit\u0159n\u00ed kapsy na z\u00e1padky, zapu\u0161t\u011bn\u00e9 panty a okrajov\u00e9 z\u00e1padky<\/td>\n<td style=\"text-align: left;\">Blokovan\u00fd p\u0159\u00edstup p\u0159\u00edm\u00fdm pohledem pro standardn\u00ed fr\u00e9zovac\u00ed hlavy 3 osy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Strategie n\u00e1vrhu j\u00e1dra k odstran\u011bn\u00ed CNC pod\u0159\u00edznut\u00ed<\/h2>\n<p>P\u0159\u00edmo v CAD odstra\u0148ujeme CNC pod\u0159\u00edznut\u00ed, aby se zabr\u00e1nilo zpo\u017ed\u011bn\u00edm p\u0159i obr\u00e1b\u011bn\u00ed a sn\u00ed\u017eily celkov\u00e9 n\u00e1klady na v\u00fdrobu. \u00dapravou geometrie d\u00edlu p\u0159ed odesl\u00e1n\u00edm soubor\u016f na fr\u00e9zu udr\u017eujeme v\u00fdrobu plynulou na standardn\u00edm za\u0159\u00edzen\u00ed.<\/p>\n<h3>Zarovnejte orientaci d\u00edlu s vektorem p\u0159\u00edstupu n\u00e1stroje<\/h3>\n<p>Ot\u00e1\u010den\u00edm d\u00edlu v CAD tak, aby prvky sm\u011b\u0159ovaly p\u0159\u00edmo na v\u0159eten\u00edk, odstra\u0148ujete skrytou geometrii. Zarovn\u00e1n\u00edm kapes a dr\u00e1\u017eek pod\u00e9l jednoho hlavn\u00edho vektoru p\u0159\u00edstupu n\u00e1stroje umo\u017e\u0148uje standardn\u00edm CNC stroj\u016fm 3 osy dos\u00e1hnout v\u0161ech prvk\u016f v jednom nastaven\u00ed, \u010d\u00edm\u017e se sni\u017euje po\u010det up\u00ednac\u00edch operac\u00ed.<\/p>\n<p>&nbsp;<\/p>\n<h3>Rozd\u011blte slo\u017eit\u00e9 geometrie na modul\u00e1rn\u00ed sestavy<\/h3>\n<p>Kdy\u017e m\u00e1 komponenta balen\u00ed p\u0159esahy na v\u00edce stran\u00e1ch, rozd\u011blen\u00ed na modul\u00e1rn\u00ed podkomponenty \u0159e\u0161\u00ed probl\u00e9my s p\u0159\u00edstupem k n\u00e1stroj\u016fm. P\u0159i v\u00fdrob\u011b vysoce v\u00fdkonn\u00fdch <a href=\"https:\/\/zscncpack.com\/cs\/product\/custom-precision-change-parts-for-packaging-machines\/\">zak\u00e1zkov\u00e9 p\u0159esn\u00e9 d\u00edly pro balic\u00ed stroje<\/a>, modul\u00e1rn\u00ed n\u00e1vrhy n\u00e1m umo\u017e\u0148uj\u00ed fr\u00e9zovat ka\u017edou sekci pomoc\u00ed standardn\u00edho n\u00e1stroje p\u0159ed jejich spojov\u00e1n\u00edm s d\u0159ev\u011bn\u00fdmi kol\u00edky, spojovac\u00edmi prvky nebo lepidly.<\/p>\n<h3>P\u0159esunout linii d\u011blen\u00ed<\/h3>\n<p>P\u0159esunut\u00ed linie d\u011blen\u00ed na nejvn\u011bj\u0161\u00ed kontury nebo p\u0159irozen\u00e9 geometrick\u00e9 p\u0159eru\u0161en\u00ed eliminuje zachycen\u00e9 zapu\u0161t\u011bn\u00e9 prvky. Tato \u00faprava zabra\u0148uje zablokov\u00e1n\u00ed fr\u00e9zy v dutin\u00e1ch formy bez naru\u0161en\u00ed pevnosti nebo t\u011bsnosti d\u00edlu.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Designov\u00e1 strategie<\/th>\n<th style=\"text-align: left;\">Kl\u00ed\u010dov\u00e1 akce<\/th>\n<th style=\"text-align: left;\">Hlavn\u00ed v\u00fdhoda<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Zarovn\u00e1n\u00ed vektor\u016f<\/strong><\/td>\n<td style=\"text-align: left;\">Oto\u010dit orientaci CAD tak, aby sm\u011b\u0159ovala ke v\u0159etenu<\/td>\n<td style=\"text-align: left;\">Odstra\u0148uje nutnost dal\u0161\u00edch nastaven\u00ed stroje<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>\u00dahly sklonu<\/strong><\/td>\n<td style=\"text-align: left;\">Tvarovat svisl\u00e9 st\u011bny pod \u00fahlem 1\u00b0 a\u017e 3\u00b0<\/td>\n<td style=\"text-align: left;\">Zaji\u0161\u0165uje voln\u00fd pr\u016fchod fr\u00e9zy a zabra\u0148uje zaseknut\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Modul\u00e1rn\u00ed rozd\u011blen\u00ed<\/strong><\/td>\n<td style=\"text-align: left;\">Rozd\u011blit 1 slo\u017eit\u00fd d\u00edl na 2 jednoduch\u00e9 d\u00edly<\/td>\n<td style=\"text-align: left;\">Umo\u017e\u0148uje fr\u00e9zov\u00e1n\u00ed ve 3 os\u00e1ch na v\u0161ech ploch\u00e1ch<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Posun linie d\u011blen\u00ed<\/strong><\/td>\n<td style=\"text-align: left;\">P\u0159esunout d\u011blen\u00ed formy na vn\u011bj\u0161\u00ed okraje<\/td>\n<td style=\"text-align: left;\">Odstra\u0148uje p\u0159esahy v termoformovac\u00edm n\u00e1stroji<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Chytr\u00e9 alternativy n\u00e1stroj\u016f, kdy\u017e jsou pod\u0159ezy nevyhnuteln\u00e9<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2026\/09\/02\/Smart_Tooling_for_CNC_Packaging_Undercuts_V2P.webp\" alt=\"Chytr\u00e9 n\u00e1stroje pro CNC obalov\u00e9 pod\u0159ez\u00e1v\u00e1n\u00ed\" \/><\/p>\n<p>N\u011bkdy n\u00e1vrh \u010d\u00e1sti balen\u00ed vy\u017eaduje vnit\u0159n\u00ed lem, dynamick\u00fd z\u00e1padkov\u00fd z\u00e1mek nebo hlubokou bo\u010dn\u00ed dr\u00e1\u017eku, kterou jednodu\u0161e nelze p\u0159epracovat. Kdy\u017e naraz\u00edme na uzav\u0159enou geometrii, kterou nelze dos\u00e1hnout p\u0159\u00edm\u00fdm vertik\u00e1ln\u00edm pr\u016fchodem, p\u0159ech\u00e1z\u00edme na specializovan\u00e9 \u0159ezn\u00e9 n\u00e1stroje a pokro\u010dil\u00e9 v\u00edceos\u00e9 stroje s nastaven\u00edm.<\/p>\n<h3>Specializovan\u00e9 fr\u00e9zy pro vnit\u0159n\u00ed prvky<\/h3>\n<p>Kdy\u017e standardn\u00ed ploch\u00e9 fr\u00e9zy sel\u017eou v dosa\u017een\u00ed zapu\u0161t\u011bn\u00fdch oblast\u00ed, umo\u017e\u0148uj\u00ed n\u00e1m zak\u00e1zkov\u00e9 profilov\u00e9 fr\u00e9zy obr\u00e1b\u011bt za p\u0159ek\u00e1\u017ekami bez kolize s obrobkem:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>T-dr\u00e1\u017ekov\u00e9 fr\u00e9zy:<\/strong> Ide\u00e1ln\u00ed pro \u0159ez\u00e1n\u00ed vodorovn\u00fdch bo\u010dn\u00edch kan\u00e1l\u016f, dr\u00e1\u017eek pro O-krou\u017eky a obd\u00e9ln\u00edkov\u00fdch z\u00e1mkov\u00fdch otvor\u016f v pevn\u00fdch krytech nebo kovov\u00fdch form\u00e1ch.<\/li>\n<li><strong>Koule (Lollipop) fr\u00e9zy:<\/strong> Perfektn\u00ed pro 3D tvarovan\u00e9 pod\u0159ez\u00e1vky, organick\u00e9 k\u0159ivky v CNC obr\u00e1b\u011bn\u00ed na zak\u00e1zku z p\u011bnov\u00e9ho obalu a v\u00edcesm\u011brn\u00e9 \u010di\u0161t\u011bn\u00ed kapes.<\/li>\n<li><strong>Dovetail fr\u00e9zy:<\/strong> Nezbytn\u00e9 pro \u00fahlovou z\u00e1mkovou geometrii, vod\u00edtka posuvn\u00fdch mechanism\u016f a z\u00fa\u017een\u00e9 z\u00e1padkov\u00e9 z\u00e1padky balen\u00ed.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Typ n\u00e1stroje<\/th>\n<th style=\"text-align: left;\">Nejlep\u0161\u00ed pou\u017eit\u00ed v balen\u00ed<\/th>\n<th style=\"text-align: left;\">Hlavn\u00ed v\u00fdhoda<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>T-dr\u00e1\u017ekov\u00e9 fr\u00e9zy<\/strong><\/td>\n<td style=\"text-align: left;\">Bo\u010dn\u00ed dr\u00e1\u017eky v pevn\u00fdch krytech<\/td>\n<td style=\"text-align: left;\">\u0158ez\u00e1n\u00ed ploch\u00fdch vnit\u0159n\u00edch kan\u00e1l\u016f bez zm\u011bny orientace d\u00edlce<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Lollipop fr\u00e9zy<\/strong><\/td>\n<td style=\"text-align: left;\">Tvarovan\u00e9 p\u011bnov\u00e9 obaly a formov\u00e9 dutiny<\/td>\n<td style=\"text-align: left;\">Pln\u00fd 3D kulov\u00fd p\u0159\u00edstup pro t\u011bsn\u00e9 vnit\u0159n\u00ed polom\u011bry<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Dovetail fr\u00e9zy<\/strong><\/td>\n<td style=\"text-align: left;\">Propojovac\u00ed p\u0159epravn\u00ed boxy a posuvn\u00e9 z\u00e1padky<\/td>\n<td style=\"text-align: left;\">P\u0159esn\u00e9 \u00fahlov\u00e9 \u0159ezy stran v jednom pr\u016fchodu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>V\u00edceos\u00e9 obr\u00e1b\u011bn\u00ed pro neomezen\u00fd p\u0159\u00edstup k n\u00e1stroji<\/h3>\n<p>Kdy\u017e se p\u0159i vlastn\u00edm n\u00e1stroji dos\u00e1hne fyzick\u00fdch limit\u016f dosahu, p\u0159echod z tradi\u010dn\u00edho 3os\u00e9ho fr\u00e9zov\u00e1n\u00ed na v\u00edceos\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed roz\u0161i\u0159uje n\u00e1\u0161 vektor p\u0159\u00edstupu k n\u00e1stroji. Nakl\u00e1p\u011bn\u00ed v\u0159etena nebo dynamick\u00e9 ot\u00e1\u010den\u00ed d\u00edlce umo\u017e\u0148uje standardn\u00edm koncov\u00fdm fr\u00e9z\u00e1m p\u0159ekonat hlubok\u00e9 p\u0159evisy bez nutnosti pomal\u00fdch sekund\u00e1rn\u00edch manu\u00e1ln\u00edch nastaven\u00ed.<\/p>\n<p>Pro slo\u017eitou geometrii formy implementace <a href=\"https:\/\/zscncpack.com\/cs\/how-5-axis-toolpath-control-improves-thermoforming-accuracy\/\">Ovl\u00e1d\u00e1n\u00ed 5-osa n\u00e1strojov\u00e9 dr\u00e1hy pro p\u0159esnost termoformov\u00e1n\u00ed<\/a> umo\u017e\u0148uje n\u00e1m udr\u017eovat optim\u00e1ln\u00ed kontakt s fr\u00e9zou p\u0159i nakl\u00e1n\u011bn\u00ed za omezen\u00edmi st\u011bn. P\u0159i hodnocen\u00ed strategi\u00ed stroje pro slo\u017eit\u00e9 \u010d\u00e1sti balic\u00edho stroje porovn\u00e1v\u00e1me <a href=\"https:\/\/zscncpack.com\/cs\/cam-profile-machining-3-and-2-vs-simultaneous-5-axis\/\">obr\u00e1b\u011bn\u00ed s 3+2 vs sou\u010dasn\u00e9 obr\u00e1b\u011bn\u00ed s 5 osami<\/a> pom\u00e1h\u00e1 n\u00e1m zkr\u00e1tit cykly p\u0159i \u010dist\u00e9m fr\u00e9zov\u00e1n\u00ed strm\u00fdch vnit\u0159n\u00edch bo\u010dn\u00edch st\u011bn.<\/p>\n<h3>\u00daprava geometrie pro standardn\u00ed konov\u00e9 fr\u00e9zy<\/h3>\n<p>Nemus\u00edte v\u017edy pot\u0159ebovat drah\u00e9 5-ose stroje nebo speci\u00e1ln\u00ed bity k \u0159e\u0161en\u00ed t\u011b\u017eko p\u0159\u00edstupn\u00fdch funkc\u00ed. Men\u0161\u00ed \u00fapravy CAD geometrie \u010dasto umo\u017e\u0148uj\u00ed standardn\u00ed n\u00e1stroje prov\u00e1d\u011bt spolehliv\u00e9 pod\u0159ez\u00e1vac\u00ed obr\u00e1b\u011bn\u00ed:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Rady roh\u016f (dogbone \u0159ezy):<\/strong> P\u0159idejte mal\u00e9 kruhov\u00e9 v\u00fd\u0159ezy vnit\u0159n\u00edch roh\u016f, aby se spojovac\u00ed d\u00edly usadily \u00fapln\u011b bez nutnosti ostr\u00fdch vnit\u0159n\u00edch roh\u016f.<\/li>\n<li><strong>Roz\u0161\u00ed\u0159en\u00e9 polom\u011bry roh\u016f:<\/strong> Zv\u011bt\u0161ete vnit\u0159n\u00ed polom\u011bry, aby se ve\u0161ly v\u011bt\u0161\u00ed, tu\u017e\u0161\u00ed konov\u00e9 fr\u00e9zy. To eliminuje klep\u00e1n\u00ed a sni\u017euje vych\u00fdlen\u00ed n\u00e1stroje p\u0159i hlubok\u00fdch svisl\u00fdch pr\u016fjezdech.<\/li>\n<li><strong>V\u00fd\u0159ezy pro voln\u00fd prostor n\u00e1stroje:<\/strong> Obr\u00e1b\u011bjte m\u011blk\u00e9 v\u00fd\u0159ezy v bl\u00edzkosti p\u0159evis\u016f, aby byla zaji\u0161t\u011bna dostate\u010dn\u00e1 CNC voln\u00e1 vzd\u00e1lenost pro standardn\u00ed up\u00ednky fr\u00e9z.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Pracovn\u00ed postup n\u00e1vrhu pro v\u00fdrobu (DFM) pro \u010d\u00e1sti balen\u00ed<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2026\/09\/02\/Removing_CNC_Undercuts_from_Packaging_Designs_FJQ.webp\" alt=\"Odstra\u0148ov\u00e1n\u00ed CNC pod\u0159ez\u016f z obalov\u00fdch n\u00e1vrh\u016f\" \/><\/p>\n<p>Integrujeme DFM pro CNC obr\u00e1b\u011bn\u00ed ji\u017e na za\u010d\u00e1tku ka\u017ed\u00e9ho projektu, abychom odhalili geometrick\u00e9 probl\u00e9my v\u010das a udr\u017eeli v\u00fdrobu efektivn\u00ed.<\/p>\n<h3>Automatick\u00e9 kontroly pod\u0159ez\u00e1v\u00e1n\u00ed CAD<\/h3>\n<p>Ne\u017e ode\u0161leme jak\u00e9koli zak\u00e1zkov\u00e9 CNC d\u00edly na v\u00fdrobu, spou\u0161t\u00edme automatick\u00e9 anal\u00fdzy sklonu a pod\u0159ez\u00e1v\u00e1n\u00ed v CAD, abychom odstranili pod\u0159ez\u00e1vac\u00ed prvky, kter\u00e9 CAD modely \u010dasto skr\u00fdvaj\u00ed. To okam\u017eit\u011b upozorn\u00ed na zachycen\u00e9 plochy, hlubok\u00e9 svisl\u00e9 st\u011bny a zakrytou geometrii pod\u00e9l c\u00edlov\u00e9ho vektoru p\u0159\u00edstupu n\u00e1stroje. V\u010dasn\u00e9 odhalen\u00ed t\u011bchto digit\u00e1ln\u00edch chyb zabr\u00e1n\u00ed zlomen\u00ed konov\u00fdch fr\u00e9z a po\u0161kozen\u00ed materi\u00e1lu. Vyu\u017eit\u00ed <a href=\"https:\/\/zscncpack.com\/cs\/product\/dfm-optimized-cnc-machined-plates-for-packaging-machines\/\">optimalizovan\u00fdch CNC desek pro DFM<\/a> zaru\u010duje, \u017ee hloubky kapek a voln\u00e9 prostory st\u011bn jsou p\u0159ipraveny pro standardn\u00ed n\u00e1stroje od prvn\u00edho dne.<\/p>\n<h3>Vyv\u00e1\u017een\u00ed ochrany d\u00edl\u016f a rychlosti obr\u00e1b\u011bn\u00ed<\/h3>\n<p>Vlo\u017eky do balen\u00ed mus\u00ed pevn\u011b dr\u017eet p\u0159edm\u011bty, ale p\u0159ehnan\u00e9 reten\u010dn\u00ed prvky zp\u016fsobuj\u00ed v\u00fdrazn\u00e9 zv\u00fd\u0161en\u00ed cykl\u016f. Vyva\u017eujeme ochranu produktu s rychl\u00fdm prov\u00e1d\u011bn\u00edm dr\u00e1hy n\u00e1stroje pomoc\u00ed c\u00edlen\u00fdch \u00faprav n\u00e1vrhu:<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Designov\u00e1 Funkce<\/th>\n<th style=\"text-align: left;\">C\u00edl ochrany<\/th>\n<th style=\"text-align: left;\">\u00daprava DFM<\/th>\n<th style=\"text-align: left;\">Dopad doby cyklu<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Hlubok\u00e9 reten\u010dn\u00ed kapsy<\/strong><\/td>\n<td style=\"text-align: left;\">Zabra\u0148uje posunu produktu<\/td>\n<td style=\"text-align: left;\">P\u0159idejte 3\u00b0 a\u017e 5\u00b0 n\u00e1b\u011bhov\u00fdch \u00fahl\u016f<\/td>\n<td style=\"text-align: left;\"><strong>25% rychlej\u0161\u00ed<\/strong> hrubovac\u00ed pr\u016fchody<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Z\u00e1padkov\u00e9 p\u0159esahy<\/strong><\/td>\n<td style=\"text-align: left;\">Zamykaj\u00ed d\u00edly na m\u00edst\u011b<\/td>\n<td style=\"text-align: left;\">Nahra\u010fte rozd\u011blen\u00fdmi modul\u00e1rn\u00edmi vlo\u017ekami<\/td>\n<td style=\"text-align: left;\"><strong>30% sn\u00ed\u017een\u00ed<\/strong> v fr\u00e9zov\u00e1n\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ostr\u00e9 vnit\u0159n\u00ed rohy<\/strong><\/td>\n<td style=\"text-align: left;\">Sed\u00ed na vn\u011bj\u0161\u00ed hrany krabice<\/td>\n<td style=\"text-align: left;\">Zv\u011bt\u0161ete polom\u011bry, aby odpov\u00eddaly pr\u016fm\u011bru fr\u00e9zy<\/td>\n<td style=\"text-align: left;\"><strong>Eliminuje<\/strong> sekund\u00e1rn\u00ed v\u00fdm\u011bny n\u00e1stroj\u016f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u00daspora n\u00e1klad\u016f: opot\u0159eben\u00ed n\u00e1stroj\u016f a hodiny stroje<\/h3>\n<p>Odstran\u011bn\u00ed zbyte\u010dn\u00fdch pod\u0159ez\u016f z n\u00e1vrh\u016f obal\u016f p\u0159in\u00e1\u0161\u00ed okam\u017eit\u00e9 sn\u00ed\u017een\u00ed n\u00e1klad\u016f na v\u00fdrobn\u00ed s\u00e9rie:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Ni\u017e\u0161\u00ed n\u00e1klady na n\u00e1stroje:<\/strong> Eliminuje pot\u0159ebu k\u0159ehk\u00fdch fr\u00e9z na l\u00edz\u00e1tka nebo specializovan\u00fdch spojovac\u00edch fr\u00e9z, kter\u00e9 se rychle opot\u0159ebov\u00e1vaj\u00ed.<\/li>\n<li><strong>Sn\u00ed\u017een\u00ed nastavov\u00e1n\u00ed obr\u00e1b\u011bn\u00ed:<\/strong> Udr\u017euje pr\u00e1ce na standardn\u00edch 3os\u00fdch CNC fr\u00e9zk\u00e1ch t\u00edm, \u017ee se vyh\u00fdb\u00e1 slo\u017eit\u00fdm v\u00edceos\u00fdm p\u0159eprav\u00e1m.<\/li>\n<li><strong>Maximalizovan\u00e9 rychlosti posuvu:<\/strong> Umo\u017e\u0148uje standardn\u00edm ploch\u00fdm a kuli\u010dkov\u00fdm fr\u00e9z\u00e1m pracovat p\u0159i maxim\u00e1ln\u00edch ot\u00e1\u010dk\u00e1ch s optim\u00e1ln\u00edm voln\u00fdm prostorem pro CNC n\u00e1stroje.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n<h3>Mohou standardn\u00ed 3os\u00e9 CNC stroje \u0159ezat pod\u0159ezy na obalov\u00fdch d\u00edlech?<\/h3>\n<p>Ano, ale s p\u0159\u00edsn\u00fdmi geometrick\u00fdmi limity. Standardn\u00ed 3os\u00e9 CNC obr\u00e1b\u011bc\u00ed za\u0159\u00edzen\u00ed se pohybuje v\u00fdhradn\u011b pod\u00e9l os X, Y a Z, co\u017e znamen\u00e1, \u017ee rovn\u00e9 fr\u00e9zy nemohou dos\u00e1hnout na prvky zakryt\u00e9 z horn\u00edho vektoru p\u0159\u00edstupu n\u00e1stroje. Na z\u00e1kladn\u00ed horizont\u00e1ln\u00ed pod\u0159ezy na 3os\u00e9m za\u0159\u00edzen\u00ed lze obr\u00e1b\u011bt pomoc\u00ed speci\u00e1ln\u00edch fr\u00e9z, jako jsou T-dr\u017e\u00e1ky nebo spojovac\u00ed fr\u00e9zy. Nicm\u00e9n\u011b, pro slo\u017eit\u00e9 3D pod\u0159ezy nebo \u00fahlov\u00e9 reli\u00e9fn\u00ed prvky v zak\u00e1zkov\u00fdch p\u011bnov\u00fdch v\u00fdpln\u00edch je t\u0159eba manu\u00e1ln\u011b ot\u00e1\u010det d\u00edly nebo prov\u00e1d\u011bt v\u00edceos\u00e9 \u00fapravy n\u00e1stroj\u016f.<\/p>\n<h3>Jak ovliv\u0148uj\u00ed n\u00e1b\u011bhov\u00e9 \u00fahly p\u0159esnost pasov\u00e1n\u00ed p\u011bnov\u00fdch a plastov\u00fdch v\u00fdpln\u00ed?<\/h3>\n<p>N\u00e1b\u011bhov\u00e9 \u00fahly zav\u00e1d\u011bj\u00ed m\u00edrn\u00fd zkosen\u00ed (obvykle <strong>1\u00b0 a\u017e 3\u00b0<\/strong>) pod\u00e9l svisl\u00fdch st\u011bn, aby se usnadnilo \u010di\u0161t\u011bn\u00ed n\u00e1stroj\u016f a uvoln\u011bn\u00ed d\u00edl\u016f:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Termoformovan\u00e9 plasty:<\/strong> Spr\u00e1vn\u00e9 n\u00e1b\u011bhov\u00e9 \u00fahly zabra\u0148uj\u00ed tomu, aby hork\u00e9 listy p\u0159i vyj\u00edm\u00e1n\u00ed z formy ulp\u00edvaly, t\u00e1hly nebo se trhaly proti bo\u010dn\u00edm st\u011bn\u00e1m formy.<\/li>\n<li><strong>Zak\u00e1zkov\u00e9 p\u011bnov\u00e9 vlo\u017eky:<\/strong> P\u0159id\u00e1n\u00ed jemn\u00e9ho n\u00e1b\u011bhov\u00e9ho \u00fahlu zabra\u0148uje tomu, aby fr\u00e9zovac\u00ed n\u00e1stroje stla\u010dovaly hustou p\u011bnu, \u010d\u00edm\u017e vznikaj\u00ed \u010dist\u00e9 hrany a spolehliv\u00e9 t\u0159ec\u00ed spojen\u00ed pro chr\u00e1n\u011bn\u00e9 produkty.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Jak\u00fd je nejjednodu\u0161\u0161\u00ed zp\u016fsob, jak detekovat pod\u0159ezy v CAD softwaru?<\/h3>\n<p>Nejefektivn\u011bj\u0161\u00ed metodou je pou\u017eit\u00ed integrovan\u00e9ho n\u00e1stroje pro anal\u00fdzu pod\u0159ez\u016f nebo modul pro barevn\u011b k\u00f3dovanou anal\u00fdzu n\u00e1b\u011bhu p\u0159ed prototypov\u00e1n\u00edm:<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Definovat sm\u011br:<\/strong> Nastavte hlavn\u00ed sm\u011br tahu nebo vektor p\u0159\u00edstupu n\u00e1stroje (obvykle osa Z).<\/li>\n<li><strong>Barevn\u00e9 mapov\u00e1n\u00ed:<\/strong> Software okam\u017eit\u011b zv\u00fdrazn\u00ed uv\u011bzn\u011bnou geometrii, st\u011bny s nulov\u00fdm n\u00e1b\u011bhem a negativn\u00ed p\u0159evisy \u010dervenou nebo \u017elutou barvou.<\/li>\n<li><strong>Vyhodnotit:<\/strong> Identifikujte problematick\u00e9 z\u00f3ny, abyste zjistili, zda je pot\u0159eba jednoduch\u00e1 oprava \u00fahlu n\u00e1b\u011bhu nebo specializovan\u00e1 fr\u00e9za na pod\u0159ez\u00e1v\u00e1n\u00ed.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Je levn\u011bj\u0161\u00ed p\u0159epracovat obalovou \u010d\u00e1st nebo p\u0159ej\u00edt na 5os\u00e9 CNC obr\u00e1b\u011bn\u00ed?<\/h3>\n<p>P\u0159epracov\u00e1n\u00ed d\u00edlu tak, aby se odstranily pod\u0159ezy, je obvykle nejlevn\u011bj\u0161\u00ed cesta pro v\u00fdrobu ve velk\u00e9m objemu. \u00daprava um\u00edst\u011bn\u00ed linii d\u011blen\u00ed nebo rozd\u011blen\u00ed slo\u017eit\u00fdch d\u00edl\u016f na modul\u00e1rn\u00ed \u010d\u00e1sti udr\u017e\u00ed v\u00fdrobu na levn\u011bj\u0161\u00edch 3os\u00fdch stroj\u00edch. Nicm\u00e9n\u011b, pro slo\u017eit\u00e9 formy s p\u0159esn\u00fdmi tolerancemi, kde zm\u011bny designu nejsou mo\u017enost\u00ed, pou\u017eit\u00ed specializovan\u00fdch <a href=\"https:\/\/zscncpack.com\/cs\/product\/5-axis-thermoforming-tool-inserts-for-packaging-machines\/\">5-osa termoformovac\u00edch n\u00e1strojov\u00fdch vlo\u017eek<\/a> eliminuj\u00ed v\u00edcestup\u0148ov\u00e9 up\u00edn\u00e1n\u00ed a v\u00fdrazn\u011b sni\u017euj\u00ed celkov\u00e9 cykly.<\/p>\n<div id=\"references\">\n<h2>Souvisej\u00edc\u00ed zdroje<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.protolabs.com\/resources\/design-for-moldability-toolkit\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.protolabs.com\/resources\/design-for-moldability-toolkit\/<\/a><\/li>\n<li><a href=\"https:\/\/xometry.pro\/en\/articles\/design-for-manufacturing-dfm-guide\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/xometry.pro\/en\/articles\/design-for-manufacturing-dfm-guide\/<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Zjist\u011bte, jak odstranit CNC pod\u0159\u00edznut\u00ed z n\u00e1vrh\u016f obalov\u00fdch d\u00edl\u016f s tipy DFM pro odhadov\u00e9 bo\u010dn\u00ed akce a \u00fasporu n\u00e1klad\u016f<\/p>","protected":false},"author":1,"featured_media":1299,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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