STLãã¡ã€ã«ã®ç·šéã¯ãé«å質ã®3Dããªã³ããå®çŸããããã®éèŠãªã¹ãããã§ããããã«ãããã¢ãã«ãæŽç·Žããããšã©ãŒãä¿®æ£ããç¹å®ã®ããŒãºã«åãããŠãã¶ã€ã³ãé©å¿ãããããšãã§ããŸãããã®ãããªèª¿æŽãè¡ãããšã§ãããæ»ãããªè¡šé¢ãããåªããæ§é çå®å šæ§ã粟床ã®åäžãä¿èšŒã§ããŸããããç ç©¶ã§ã¯ãã«ã¹ã¿ãã€ãºãããéé ã¬ã€ããšè¡åèšç»ãçµã¿åãããããšã§ãå¢çã®æ£ç¢ºãªæåºãå¯èœã«ãªããé©åãªã€ã³ãã©ã³ãã®äœçœ®ã確ä¿ãããŸãããããã¯ããªãŒããŒã¡ã€ãã®ä¿®æ£ãããã«ç²ŸåºŠãšäœ¿ãããããåäžãããããæµ®ã圫ãã«ããŠããŸããã«ã¹ã¿ãã€ãºã¯ãŸããåãã£ãŠãã¶ã€ã³ãæé©åããããšã§ããã®å Žéãã®ç»åã®ãããªè¿œå ã¹ãããã®å¿ èŠæ§ãæžãããŸããæ¬ é¥ã®ä¿®æ£ã§ããã现éšã®åŒ·åã§ãããSTLãã¡ã€ã«ã®ç·šéæ©èœã¯ãããè¯ãçµæãããããå¯èœæ§ãç¡éã«åºããŸããäž»ãªèŠç¹STLãã¡ã€ã«ã倿Žããããšã§ãå°å·ç©ã®èŠæ ããè¯ããªããŸããã§ããŒããã衚é¢ãäžçŽç·ã«äžŠã°ãªãéšåãªã©ã®åé¡ãä¿®æ£ããŸãããã¶ã€ã³ãããŒãœãã©ã€ãºããããšã§ãç¹å®ã®åé¡ã解決ã§ããŸããããŒãºã«åãããŠã¢ãã«ã倿Žããããè¯ãäœæ¥ãå®çŸããŸããç·šéã«é©ããããŒã«ãéžã¶ãåå¿è ã®æ¹ã¯ Tinkercad ã®ãããªç¡æã®ããŒã«ããäžçŽè ã®æ¹ã¯ Fusion 360 ã®ãããªé«åºŠãªããŒã«ãã䜿ããã ãããSTLãã¡ã€ã«ã«ééãããªããåžžã«ãã§ãã¯ããŸããããããŸãå°å·ããææãç¯çŽããããã«ãå£ãããšããžãã®ã£ãããä¿®æ£ããŸããã¢ãã«ã®åŒ·åºŠãé«ããŸããããå£ã®åã¿ãã€ã³ãã£ã«ããã§ãã¯ããŠãç°¡åã«å°å·ã§ããäžå€«ãªãã¶ã€ã³ãäœããŸããããSTLãã¡ã€ã«ãç·šéããçç±å°å·å質ãšç²ŸåºŠã®åäžSTLãã¡ã€ã«ã®ç·šéã¯ã3Dããªã³ãã®å質ãšç²ŸåºŠãåäžãããäžã§éèŠãªåœ¹å²ãæãããŸããã¢ãã«ãæ¹è¯ãããšãæçµçãªããªã³ããæãªãå¯èœæ§ã®ããå¹åžã®ãã衚é¢ãã®ã¶ã®ã¶ã®ãšããžãäœçœ®ã®ããããã£ãŒãã£ãªã©ã®åé¡ã«å¯ŸåŠã§ããŸããäŸãã°STLãã¡ã€ã«ã®æ£ç¢ºãªã»ã°ã¡ã³ããŒã·ã§ã³ã¯ãã¢ãã«ãç¹å®ã®è§£ååŠçãŸãã¯æ©èœçèŠä»¶ã«é©åããããšãä¿èšŒããŸããã€ã³ãã£ã«ãã¿ãŒã³ãšããŒã»ã³ããŒãžã調æŽããããšã§ãå°å·ãªããžã§ã¯ãã®ç©ççç¹æ§ã«å€§ããªåœ±é¿ãäžããããšãã§ããããã¯æŸå°ç·æ²»çã®ãããªåéã§ç¹ã«éèŠã§ããè¡ç®¡è§£åã¢ãã«ã«é¢ããç ç©¶ã§ã¯ãSTLãã¡ã€ã«ãç·šéããããšã§å¯žæ³ç²ŸåºŠãåäžããããšãå®èšŒãããŸããããã¡ã€ã«ãæé©åããããšã§ãæ£è åºæã®ã¢ãã«ã§é«ãå¿ å®åºŠãéæããããšãã§ããå»çãå·¥åŠã®çšéã§ããè¯ãçµæãä¿èšŒããããšãã§ããŸããããã«ãHuangæ°ã®ç ç©¶ã§ã¯ãSTLãã¡ã€ã«ãä¿®æ£ããããšã§åœ¢ç¶åå·®ã50%æ¹åãããããšã瀺ããã粟å¯ç·šéã®æž¬å®å¯èœãªå©ç¹ã蚌æãããŸãããæ¢åã¢ãã«ã®ãšã©ãŒã®ä¿®æ£STLãã¡ã€ã«ã®ãšã©ãŒã¯ãå°å·ã®å€±æãæ§é çãªåŒ±ç¹ã«ã€ãªããå¯èœæ§ããããŸããããããåé¡ã«ã¯ãéããããŒã«ããšããžã亀差é¢ãã¡ãã·ã¥ã®ç©Žãªã©ããããŸãããããã®ãã¡ã€ã«ãç·šéããããšã§ãå°å·åã«ãã®ãããªåé¡ã修埩ããæéãšææãç¯çŽããããšãã§ããŸããå®éçç ç©¶ã§ã¯ããšã©ãŒãä¿®æ£ããSTLä¿®æ£ã®æå¹æ§ã匷調ãããŠãããããšãã°ãããç ç©¶ã§ã¯ãããžã¿ã«åçæè¡ã䜿çšããŠã3Dããªã³ããããã¢ãã«ãšå ã®STLãã¡ã€ã«ãæ¯èŒããŸããã誀差ã®å²åãèšç®ãããä¿®æ£ã«ãã£ãŠç²ŸåºŠãåäžããäžäžèŽãæžå°ããããšã瀺ãããŸããããããã®ãšã©ãŒã«å¯ŸåŠããããšã§ãããªã³ãã®æ©èœæ§ãšèŠãç®ã®çŸããã®äž¡æ¹ã確ä¿ã§ããŸãããŠããŒã¯ãªçšéã®ããã®ãã¶ã€ã³ã®ã«ã¹ã¿ãã€ãºSTLãã¡ã€ã«ãç·šéããæããšããµã€ãã£ã³ã°ãªåŽé¢ã®1ã€ã¯ããã¶ã€ã³ãã«ã¹ã¿ãã€ãºã§ããããšã§ããããŒãœãã©ã€ãºãããã®ãããæ©èœçãªãããã¿ã€ããå»çæ©åšã®ããããäœæããå Žåã§ããã«ã¹ã¿ãã€ãºã«ãã£ãŠã¢ãã«ãç¹å®ã®ããŒãºã«åãããããšãã§ããŸããã«ã¹ã¿ãã€ãºã¯æ§èœã«ã圱é¿ããŸããäŸãã°å°å·æ©ã®ç²ŸåºŠãé«ããã°ã寞æ³ç²ŸåºŠã¯äžå®ã«ä¿ãããŸããæ¥µéåŒåŒµåŒ·ãïŒUTSïŒãªã©ã®æ©æ¢°çç¹æ§ã¯ã枩床ã硬åé床ãªã©ã®ç°å¢èŠå ã«ãã£ãŠå€åãããããç ç©¶ã§ã¯ããšãã«ã®ãŒæ¶è²»éãšå¹ŸäœåŠç粟床ãçç£ç°å¢ã«äŸåããããšãæããã«ãªããŸãããSTLãã¡ã€ã«ãç·šéããããšã§ããããã®å€æ°ãæé©åããèšèšãæå³ãããšããã«æ©èœããããã«ããããšãã§ããŸãããã®ãããªæè»æ§ã«ãããSTLãã¡ã€ã«ç·šéã¯ããã€ã¹ãã«ãšã£ãŠããããã§ãã·ã§ãã«ã«ãšã£ãŠã匷åãªããŒã«ãšãªããŸããSTLãã¡ã€ã«ãç·šéããããŒã«é©åãªããŒã«ã䜿çšãããšãSTLãã¡ã€ã«ã®ç·šéãç°¡åã«ãªããŸããåå¿è ã§ãããã§ããããŒãºã«åããããœãããŠã§ã¢ããããŸãã以äžã§ã¯ãããŸããŸãªã¹ãã«ã¬ãã«ãã¯ãŒã¯ãããŒã«é©ããããŒã«ãåé¡ããŠããŸããåå¿è åãç¡æããŒã«3Dã¢ããªã³ã°ãåããŠã®å ŽåãTinkercadãMeshmixerã®ãããªç¡æããŒã«ã¯ãçŽ æŽãããåºçºç¹ãšãªããŸãããããã®ããã°ã©ã ã¯ãSTLãã¡ã€ã«ã®ç·šéããã»ã¹ãç°¡çŽ åãããããè¶£å³ãåŠçã§ãå©çšãããããªã£ãŠããŸããTinkercadTinkercadã¯ãçŽæçãªã€ã³ã¿ãŒãã§ãŒã¹ãšãã©ãã°ïŒããããæ©èœã§ç¥ãããŠããŸããçµéšããªããŠãã3Dã¢ãã«ãçŽ æ©ãäœæã»ä¿®æ£ã§ããããŠãŒã¶ãŒãã¬ã³ããªãŒãªèšèšã®ãããåºæ¬çãªSTLç·šéã詊ããŠã¿ããåå¿è ã«æé©ã§ããMeshmixerïŒMeshmixerã¯ãã¡ãã·ã¥ã®ä¿®åŸ©ãšæé©åã®ããã®åŒ·åãªæ©èœãæäŸããŸããèªåãµããŒãçšã®ããŒã«ãå«ãŸããŠããã3Dããªã³ãçšã®ã¢ãã«ãæºåããã®ã«åœ¹ç«ã¡ãŸããè¶£å³ã§ãããã§ããã·ã³ãã«ããšæ©èœæ§ã®ãã©ã³ã¹ãé«ãè©äŸ¡ãããŠããŸãããã³ãïŒäœ¿ãããããæ±ãããªãTinkercadããå§ããŸããããã¡ãã·ã¥ä¿®åŸ©ãã¹ã©ã€ã¹ãªã©ã®é«åºŠãªæ©èœãå¿ èŠã«ãªã£ãããMeshmixerã«ä¹ãæããŸããããç¡æããŒã«ã®æ¯èŒãœãããŠã§ã¢ã®çš®é¡ç²ŸåºŠç²ŸåºŠåæ£D-CADåçé«ãäœãG-CADåçäœãé«ããããã§ãã·ã§ãã«ã®ããã®é«åºŠãªããŒã«è€éãªãããžã§ã¯ãã«ã¯ãFusion 360ãSolidWorksã®ãããªé«åºŠãªããŒã«ãåªããæ©èœãæäŸããŸãããããã®ããã°ã©ã ã¯ã詳现ãªç·šéãšå ç¢ãªæ©èœãå¿ èŠãšãããããã§ãã·ã§ãã«åãã§ããFusion 360Fusion 360ã¯ãã¢ãã«ã®èªå修埩ãšSTLãã¡ã€ã«ã®æäœã«åªããŠããŸããããŸããŸãªãã¡ã€ã«åœ¢åŒãšã®äºææ§ãç¶æããªãããèšèšã«æ£ç¢ºãªå€æŽãå ããããšãã§ããŸããSolidWorksïŒSolidWorksã¯é«åºŠãªç·šéæ©èœãåããŠãããè€éãªèšèšã®äœæãã¯ãŒã¯ãããŒã®æé©åãå¯èœã§ããè€æ°ã®ãã¡ã€ã«åœ¢åŒãæ±ãããšãã§ãããããå°éçãªç°å¢ã§ãå¹ççãªäœæ¥ãå¯èœã§ããé«åºŠãªããŒã«ã®äž»ãªæ©èœæ©èœèª¬æã¢ãã«ã®èªåä¿®æ£ããŒã«ã¯èªåçã«STLãã¡ã€ã«ã®åé¡ãä¿®æ£ããæäœæ§ãåäžãããŸããSTLãã¡ã€ã«æäœSTLãã¡ã€ã«ã®é«åºŠãªç·šéæ©èœã«ããã詳现ãªå€æŽãå¯èœã§ãããã©ãŒããããšã®äºææ§æ§ã ãªãã¡ã€ã«åœ¢åŒã«å¯Ÿå¿ããã¯ãŒã¯ãããŒå¹çãåäžãããŸããæ³šïŒãããã®ããŒã«ã¯ç¿åŸãå¿ èŠã§ããããããã§ãã·ã§ãã«ãªçšéã«æ¯é¡ã®ãªãç²ŸåºŠãšæè»æ§ãæäŸããŸããç¹å®ã®ã¯ãŒã¯ãããŒã«å¯Ÿå¿ãããªã³ã©ã€ã³ããã³ãã€ããªããã»ããŒã«ãªã³ã©ã€ã³ããŒã«ããã€ããªããããŒã«ã¯ãã¢ã¯ã»ã·ããªãã£ãšæ©èœæ§ãå ŒãåããŠãããç¹å®ã®ã¯ãŒã¯ãããŒã«æé©ã§ããCrealityCloudãPrusaSlicerã®ãããªãã©ãããã©ãŒã ã¯ãSTLãã¡ã€ã«ã®ç·šéãå¹çåããç¬èªã®æ©èœãæäŸããŸããCrealityCloudCrealityCloudã¯ãã¯ã©ãŠãããŒã¹ã®ç·šéããã³å ±æãªãã·ã§ã³ãæäŸããŸããSTLãã¡ã€ã«ãã¢ããããŒãããŠèª¿æŽããä»ã®äººãšãã¶ã€ã³ãå ±æã§ããŸãããã®ããŒã«ã¯å ±åãããžã§ã¯ãã«æé©ã§ããPrusaSlicerPrusaSlicerã¯ã3Dããªã³ãçšã®ã¢ãã«ã®æºåã«ç¹åããŠããŸãããµããŒãçæãã¹ã©ã€ã·ã³ã°ãªã©ã®æ©èœãå«ãŸããŠããããã¶ã€ã³ãçç£ã«é©ããç¶æ ã«ããŸãããã³ãïŒããŒã ã¯ãŒã¯ã«ã¯CrealityCloudã䜿çšããããªã³ãæºåã«ã¯PrusaSlicerã䜿çšããŸããã©ã¡ãã®ããŒã«ãã¯ãŒã¯ãããŒãç°¡çŽ åããæéãç¯çŽããŸããSTLãã¡ã€ã«ã®ç·šéã«äžå¯æ¬ ãªãã¯ããã¯ã¢ãã«ã®æ¡å€§çž®å°ãåè»¢ãæŽåã¹ã±ãŒãªã³ã°ãå転ãäœçœ®åããã¯ãSTLãã¡ã€ã«ãç·šéããéã®åºæ¬çãªãã¯ããã¯ã§ãããããã®èª¿æŽã«ãããã¢ãã«ãå°å·çšã®æå³ããã寞æ³ãšåãã«åãããã«ããŸããããšãã°ãã¹ã±ãŒãªã³ã°ã§ã¯ããããã¥ã¢ã»ãããã¿ã€ããå®ç©å€§ãªããžã§ã¯ãã®äœæã«ããããããç¹å®ã®èŠä»¶ã«åãããŠã¢ãã«ã®ãµã€ãºã倿Žã§ããŸããã¢ãã«ãå転ããããšãããªã³ããããäžã§ã®åããæé©åããããµããŒãã®å¿ èŠæ§ãæžããããªã³ãå質ãåäžããŸããæŽåã¯ãè€æ°ã®ããŒããã·ãŒã ã¬ã¹ã«ãã£ããããããšãä¿èšŒããŸããããã¯ãã¢ã»ã³ããªãè€æ°ããŒãã®èšèšã«äžå¯æ¬ ã§ããSTL倿æè¡ã«é¢ããæ¯èŒç ç©¶ã§ã¯ãå»ççšéã«ãããä¿¡é Œæ§ãå®èšŒããããç ç©¶è ã¯ãã¯ã©ã¹å çžé¢ä¿æ°ïŒICCïŒãšFleiss Multirater κå€ã䜿çšããŠããããã®å€æã®æåãæ€èšŒããŸããããã®ç ç©¶ã§ã¯ãäºåé¡ã骚æ£ãªã©ã®ç¹å®ã®åœ¢æã«ã€ããŠå®ç§ãªæåãå ±åãããæ£ç¢ºãªçµæãåŸãããã«ã¯æ£ç¢ºãªã¹ã±ãŒãªã³ã°ãšäœçœ®åãããéèŠã§ããããšã匷調ãããŸãããSTLãã¡ã€ã«ã®åæãšåå²STLãã¡ã€ã«ã®åãåããšåå²ã¯ã倧ããªã¢ãã«ãè€éãªã¢ãã«ã®ç®¡çã«åœ¹ç«ã¡ãŸãããã®ãã¯ããã¯ã¯ãããªã³ã¿ã®é 圢ããªã¥ãŒã ããã¶ã€ã³å šäœãå容ã§ããªãå Žåã«ç¹ã«åœ¹ç«ã¡ãŸããã¢ãã«ãå°ããªã»ã¯ã·ã§ã³ã«åå²ããããšã§ãåããŒããå¥ã ã«å°å·ããåŸã§çµã¿ç«ãŠãããšãã§ããŸãããŸããåå²ããããšã§ãã¢ãã«ã®ç¹å®ã®éšåã«éäžããŠè©³çްãªä¿®æ£ãè¡ãããšãã§ããŸããäŸãã°ã倧ããªå»ºç¯ã¢ãã«ã«åãçµãã§ããå Žåãå°çã«åå²ããããšã§ãå°å·å質ãåäžãããšã©ãŒã®ãªã¹ã¯ãäœæžããŸãããŸãããã®æ¹æ³ã§ã¯ãäœãåé¡ãçºçããå Žåã«ã圱é¿ãåããéšåã®ã¿ãåå°å·ã§ãããããææãšæéãç¯çŽã§ããŸããã¡ãã·ã¥åœ¢ç¶ã®ä¿®åŸ©ãšæé©åã¡ãã·ã¥åœ¢ç¶ã®ä¿®åŸ©ãšæé©åã¯ãå°å·ãæåãããããã«äžå¯æ¬ ã§ãã穎ãéããããŒã«ããšããžã亀差ããé¢ãªã©ã®äžè¬çãªåé¡ã¯ãã¢ãã«ã®æ§é çå®å šæ§ãæãªãå¯èœæ§ããããŸããMeshmixerãFusion 360ãªã©ã®ããŒã«ã¯ããããã®åé¡ãèªåçã«æ€åºããŠä¿®æ£ããæ©èœãåããŠããŸããçµ±èšè§£æã«ãããã¡ãã·ã¥æé©åã®ã¡ãªãããæ€èšŒãããŠããŸããäžå é çœ®åæ£åæïŒANOVAïŒãã¹ãã«ãããè§ã¡ãã·ã¥ã®ãããªç¹å®ã®åœ¢ç¶æ§æã¯ãå»ççšã€ã³ãã©ã³ãã®çµç¹çµ±åãèããæ¹åããç·ç¶æ§ã«ãã»ã«åœ¢æãæžå°ãããããšãæããã«ãªããŸããããããã®ç¥èŠã¯ãå°å·å質ãšé·æçæ§èœã®äž¡æ¹ãé«ããããã«ã¡ãã·ã¥åœ¢ç¶ã修埩ããããšã®éèŠæ§ã匷調ããŠããããã³ãå°å·åã«ã¯å¿ ãSTLãã¡ã€ã«ã«ãšã©ãŒããªããæ€æ»ããŠãã ãããæé©åãããã¡ãã·ã¥ã¯ãå°å·ã®æåãåäžãããã ãã§ãªããææã®ç¡é§ãåæžããŸããã¢ãã«ããã®ãã£ãŒãã£ã®è¿œå ãšåé€STLãã¡ã€ã«ãããã£ãŒãã£ãŒã远å ãŸãã¯åé€ããããšã§ãç¹å®ã®ããŒãºã«åãããŠãã¶ã€ã³ã調æŽã§ããŸããæ©èœã匷åãããå Žåã§ããã¢ãã«ãç°¡çŽ åãããå Žåã§ãããã®ææ³ã«ãã£ãŠæçµåºåãå¶åŸ¡ã§ããŸããããšãã°ãããžçšã®ç©Žã远å ããããäžèŠãªçްéšãåé€ããããé£åéšåçšã®ã¹ããããäœæãããã§ããŸãããããã®å€æŽã«ããã䜿ãåæãåäžããå°å·æã®ææã®ç¡é§ãåæžãããŸããæ©èœã远å ããã«ã¯ãTinkercadãFusion 360ãªã©ã®ããŒã«ã䜿çšããŸãããããã®ããã°ã©ã ã§ã¯ãæ°ãã圢ç¶ãæããæ¢åã®ã¢ãã«ã«ããŒãžããããšãã§ããŸããäŸãã°ãåæ±ãäœæãããããããŒã¹ã«åãããããšã§ãã¢ãã«ã«åæ±åœ¢ã®ãã°ã远å ããããšãã§ããŸããäžæ¹ããã£ãŒãã£ãŒãåé€ããã«ã¯ã圢ç¶ãæžç®ããå¿ èŠããããŸããMeshmixerã® "Boolean Difference "ããŒã«ã¯ç¹ã«ãã®äœæ¥ã«å¹æçã§ãã圢ç¶ãéãåãããäžæ¹ã仿¹ããåŒãããšã§ãæé¢ãåãåãããšãã§ããŸããSTLãã¡ã€ã«ãç·šéãããšãã¯ã粟床ãéèŠã§ãããã£ãŒãã£ãŒã®äœçœ®ããããŠããããã«ããã®ä»æ¹ãæªãã£ãããããšãå°å·ã«å€±æããããšããããŸããå°å·ããåã«ãå¿ ãä¿®æ£å 容ãããã«ãã§ãã¯ããã¹ã©ã€ã¹ãœãããŠã§ã¢ã§ã¢ãã«ããã¬ãã¥ãŒããŠãã ãããããã«ããã倿Žãæå³ãããã¶ã€ã³ãšå°å·ä»æ§ã«åã£ãŠããããšã確èªã§ããŸãããã³ã: ç·šéãè¡ãåã«ãå ã®STLãã¡ã€ã«ã®ããã¯ã¢ãããä¿åããŠãã ãããããããããšã§ãå¿ èŠã«å¿ããŠå ã®ãã¶ã€ã³ã«æ»ãããšãã§ããŸããè€æ°ã®STLãã¡ã€ã«ã1ã€ã«ãŸãšããè€æ°ã®STLãã¡ã€ã«ã1ã€ã®ã¢ãã«ã«çµåãããšãè€éãªãããžã§ã¯ããç°¡çŽ åãããŸãããã®ãã¯ããã¯ã¯ããã«ãããŒãèšèšãæ±ãå Žåããã³ã³ããŒãã³ãããŸãšãŸã£ãæ§é ã«çµã¿ç«ãŠãå Žåã«ç¹ã«äŸ¿å©ã§ãããã¡ã€ã«ãçµåããããšã§ãå°å·ããã»ã¹ãåçåããããŒãã®äœçœ®ããã®ãªã¹ã¯ã軜æžã§ããŸããSTLãã¡ã€ã«ãçµåããã«ã¯ãBlenderãFusion 360ãªã©ã®ãœãããŠã§ã¢ã䜿çšããŸãããŸãããã¹ãŠã®ãã¡ã€ã«ãã¯ãŒã¯ã¹ããŒã¹ã«ã€ã³ããŒãããŸããã¢ãã«ãã·ãŒã ã¬ã¹ã«ãã£ãããããããæ éã«äœçœ®ãåãããŸããäœçœ®åãããçµãã£ããããUnionããŸãã¯ãCombineãããŒã«ã䜿ã£ãŠã1ã€ã®ãã¡ã€ã«ã«çµ±åããŸãããã®ããã»ã¹ã«ãããçµ±äžãããã¡ãã·ã¥ãäœæããã管çãå°å·ã容æã«ãªããŸããSTLãã¡ã€ã«ãçµåããå©ç¹ã¯ãå©äŸ¿æ§ã«ãšã©ãŸããŸãããç ç©¶ã«ãããšãå質è©äŸ¡ã«ã¡ããªã¯ã¹ã®çµã¿åããã䜿çšããããšã§ãçµæãå€§å¹ ã«æ¹åãããŸããäŸãã°ã¡ããªã¯ã¹ã®çš®é¡çžé¢ä¿æ°åèæè¯ã®åäžææš< 0.7å質è©äŸ¡ã«æé©ãªåäžææšã§éæãæé©ãªææšã®çµã¿åãã> 0.83éã¿ãæé©åãã4ã€ã®ææ³ã®çµã¿åããã§éæãæ¹åå€§å¹ ãªå¢å åäžã®ã¡ããªã¯ã¹ãããã¡ããªã¯ã¹ãçµã¿åãããããšã®æå¹æ§ã瀺ãããã®ããŒã¿ã¯ãããè¯ãçµæãåŸãããã®çµ±åã®éèŠæ§ã匷調ããŠããŸããSTLãã¡ã€ã«ãçµåããããšã§ãã¯ãŒã¯ãããŒãç°¡çŽ åãããã ãã§ãªããããªã³ãã®å šäœçãªå質ãåäžããŸããæ³šæ: ãã¡ã€ã«ãçµ±åããåŸãã¢ãã«ãéãªãåã£ãããé¢ã亀差ããŠããªããæ€æ»ããŸããåé¡ãããã°ä¿®åŸ©ããã¹ã ãŒãºãªå°å·ããã»ã¹ã確ä¿ããŸããSTLãã¡ã€ã«ã®é«åºŠãªç·šéæ¹æ³è€éãªä¿®æ£ã®ããã®ããŒã«æŒç®ããŒã«æŒç®ã¯ãSTLãã¡ã€ã«ã«æ£ç¢ºãªå€æŽãå ããããã®åŒ·åãªããŒã«ã§ãããããã®æäœã«ããã圢ç¶ãçµåãæžç®ããŸãã¯äº€å·®ãããŠãè€éãª3Dã¢ãã«ãäœæã§ããŸããäŸãã°ã2ã€ã®å¥ã ã®éšåã1ã€ã®ãŸãšãŸã£ããã¶ã€ã³ã«çµ±åããããã¹ãããã穎ã®ãããªæ©èœçãªç¹åŸŽã远å ããããã«ã»ã¯ã·ã§ã³ãåãåãããã§ããŸãããã®ãã¯ããã¯ã¯ãé«ã粟床ãèŠæ±ãããè€éãªãã¶ã€ã³ã«åãçµãå Žåã«ç¹ã«åœ¹ç«ã¡ãŸããããŒã«æŒç®ã¯ã次ã®ãããªæ¥çã§åºã䜿çšãããŠããŸãïŒæ¯ç§çšã¢ã©ã€ããŒã®è£œé ã軜éãã€èä¹ æ§ã®ããéšåãèšèšããèªç©ºå®å®ãè©³çŽ°ãªæ§é ã¢ãã«ãäœæãã建ç¯å°åºæåœ¢ã§ã¯ãããè¯ãæ§èœãåŸãããã«éåãæ¹è¯ããŸãããããã®äœæ¥ã¯ãèšèšåè³ªãšæ©èœæ§ã®äž¡æ¹ãåäžãããããããããã§ãã·ã§ãã«ã«ãããã€ã¹ãã«ãäžå¯æ¬ ã§ããããŒãªã¢ã³ããŒã«ã䜿çšããŠSTLãã¡ã€ã«ãç·šéãããšãç¹å®ã®çšéã«åãããã¢ãã«ãäœæããèœåãåŸãããŸãã軜éèšèšã®ããã®ããããžãŒæé©åããããžãŒã®æé©åã«ããã匷床ãç¶æããªãã3Dã¢ãã«ã軜éåã§ããŸãããã®æ¹æ³ã¯ãèªç©ºå®å®ãèªåè»ãããããå·¥åŠãªã©ã®æ¥çã«ããã軜éèšèšã®äœæã«æé©ã§ããã¢ãã«å ã§ææãåé åããããšã§ãèä¹ æ§ãšå¹çã®ãã©ã³ã¹ããšãããšãã§ããŸããç£æ¥çšéã®ç ç©¶ã§ã¯ãããããžãŒæé©åã®å©ç¹ã匷調ãããŠããŸããããç ç©¶ã§ã¯ãç±å¯å¡æ§ããªãŠã¬ã¿ã³ã䜿çšããŠãã¬ãã·ãã«ã«ãããªã³ã°ãåèšèšããŸãããæé©åãããèšèšã¯ãæ§èœãç¶æããªããééãåæžããå®äžçã®ã·ããªãªã«ãããå®çšæ§ã蚌æããããŸããå¥ã®ç ç©¶ã§ã¯ã矜ã°ãã翌ã®è¶ å°åèªç©ºæ©ã«çŠç¹ãåœãŠãŸããããã®ç ç©¶ã§ã¯ãããããžãŒã®æé©åã«ãããæ§é çå®å šæ§ãæãªãããšãªãè»œéæ§é ãå®çŸã§ããããšãå®èšŒããããããã®äŸã¯ããã®æè¡ãããã«æ©èœæ§ãšæç¶å¯èœæ§ã®äž¡æ¹ãé«ãããã瀺ããŠãããè€éã§ææ©çãªåœ¢ç¶ã®ã¹ã«ã«ããã¹ã«ã«ããããŒã«ã䜿çšãããšãSTLãã¡ã€ã«ã§è©³çްãã€ææ©çãªåœ¢ç¶ãäœæã§ããŸãããããã®ããŒã«ã¯ãèžè¡çãããžã§ã¯ããå»çã¢ãã«ããŸãã¯èªç¶ãªå€èгãå¿ èŠãšãããããããã¶ã€ã³ã«æé©ã§ããã¹ã«ã«ãããœãããŠã§ã¢ã䜿çšããŠããµãŒãã§ã¹ãæ»ããã«ãããã现ãããã£ããŒã«ã远å ããããã¢ãã«ã®äžéšãå圢æãããã§ããŸããã¹ã«ã«ããã®æåã«ã¯ãããã©ãŒãã³ã¹ãéèŠãªåœ¹å²ãæãããŸããé«åºŠãªã¬ã³ããªã³ã°ã»ãšã³ãžã³ãæèŒãããœãããŠã§ã¢ã¯ããã»ã¹ãã¹ããŒãã¢ããããåå¿ã®è¯ããŠãŒã¶ãŒã»ã€ã³ã¿ãŒãã§ãŒã¹ã¯åµé æ§ãé«ããŸããååãªRAMãšå°çšGPUãå«ãé«ãã·ã¹ãã ã¹ããã¯ã¯ãè€éãªã¢ãã«ã®ã¹ã ãŒãºãªåŠçãä¿èšŒããŸããLODïŒLevel of DetailïŒãããŒãã«ãããã®ãã€ã¯ãªã©ã®ãã¯ããã¯ã¯ãã·ã¹ãã ã«è² è·ããããããšãªãã¯ãªãªãã£ãç¶æããã®ã«åœ¹ç«ã¡ãŸããã¹ã«ã«ããããŒã«ã䜿ãããªãããšã§ãåºæ¬çãªãã¶ã€ã³ãè€éãªèžè¡äœåã«å€ããããšãã§ããŸãããã³ãã¹ã«ã«ããäžã¯åžžã«é²è¡ç¶æ³ãããŸãã«ä¿åããŸããããããããããšã§ãããŒã¿ã®æå€±ãé²ããã¢ãã«ã®ç Žæãæããããšãªãå®éšãè¡ãããšãã§ããŸããSTLãã¡ã€ã«ã®ãã©ãã«ã·ã¥ãŒãã£ã³ã°ãšæé©åç»åãœãŒã¹ïŒpexelséããããŒã«ããšããžãšäº€å·®ããé¢ã®è§£æ±ºéããããŒã«ããšããžãšäº€å·®é¢ã¯ãå°å·ããã»ã¹ãæ··ä¹±ãããå¯èœæ§ããããŸãããããã®åé¡ã¯ããªã³ã¿ãæ··ä¹±ãããå°å·ã®å€±æãæ§é çæ¬ é¥ã«ã€ãªãããŸãããããã解決ããã«ã¯ãäœç³»çãªã¢ãããŒãã«åŸã£ãŠãã ããïŒã¡ãã·ã¥ãç·šéãœãããŠã§ã¢ã«ã€ã³ããŒãããéè€ããé ç¹ãçµ±äžããŸããFilters "ã¡ãã¥ãŒã䜿ã£ãŠããããžã«ã«ã¡ãžã£ãŒãèšç®ããŸãããã®ã¹ãããã§ã¯ãé ç¹ã蟺ãé¢ã®æ°ãå«ãã¡ãã·ã¥ã®ããããã£ãç¹å®ããããšãã§ããŸããã¡ãã·ã¥ã2倿§äœãã©ããããã§ãã¯ããŸããã¡ãã·ã¥ãéããæ§é ã§ã穎ããªããé ç¹ãéè€ããŠããªãããšã確èªããŸããã¡ãã·ã¥ãéãããã©ãŒã«ãã®å ŽåããªãŒãã³ãšããžãéè€ããé¢ã2ã€ä»¥äžã®äžè§åœ¢ã§äœ¿çšãããŠãããšããžãåæããŸãããããã®åé¡ãä¿®æ£ããå°å·å¯èœãª2倿§äœã¡ãã·ã¥ãäœæããŸãããããã®åé¡ã«å¯ŸåŠããããšã§ãã¢ãã«ã®å®å šæ§ãåäžããããã¹ã ãŒãºãªå°å·ãå¯èœã«ãªããŸãããã³ãå°å·ããåã«ãåžžã«STLãã¡ã€ã«ã®éããããŒã«ããšããžãæ€æ»ããŸããæ©æã«çºèŠããããšã§ãæéãç¯çŽããææã®ç¡é§ãé²ãããšãã§ããŸããã¡ãã·ã¥ã®ç©Žãééã®ä¿®åŸ©ã¡ãã·ã¥ã«ç©Žãééããããšãã¢ãã«ã®æ§é ã匱ããªããŸãããããã®æ¬ é¥ã¯ãäžå®å šãªããªã³ããèä¹ æ§ã®äœäžã«ã€ãªãããŸãããããã修埩ããããšã§ãèšèšã®ä¿¡é Œæ§ãåäžããŸããè¶ é³æ³¢ãã¢ã³ãŒã¹ãã£ãã¯ã»ãšããã·ã§ã³ãªã©ã®éç Žå£æ€æ»ïŒNDTïŒæè¡ã¯ãæ§é ã®å¥å šæ§ãè©äŸ¡ããã®ã«æå¹ã§ããå®éã®ã±ãŒã¹ã¹ã¿ãã£ã§ã¯ããããã®ææ³ã«ãã£ãŠæå·ãç¹å®ããè£ä¿®ãæ€èšŒããããšã«æåããŠããŸããSTLãã¡ã€ã«ãç·šéããéã«ã¯ãMeshmixerãFusion 360ã®ãããªããŒã«ã䜿çšããŠãã®ã£ãããæ€åºããŠåããŸãããããã®ããã°ã©ã ã¯ä¿®åŸ©ããã»ã¹ãèªååããã·ãŒã ã¬ã¹ãªã¡ãã·ã¥ãå®çŸããŸãããã修埩ãããã¢ãã«ã¯ãå°å·ãããŸãããã ãã§ãªããå®çšçãªã¢ããªã±ãŒã·ã§ã³ã§ãåªããæ§èœãçºæ®ããŸããã¡ã¢ïŒç·šéäžã«ã¡ãã·ã¥ã«ç©ŽãéããŠããªãã宿çã«ãã§ãã¯ããŸãããããã®ã¹ãããã«ãããã¢ãã«ã®æ§é çãªå¥å šæ§ãä¿ãããŸãããã£ããŒã«ãç¶æããªãããã¡ã€ã«ãµã€ãºãå°ãããã倧ããªSTLãã¡ã€ã«ã¯ã¯ãŒã¯ãããŒãé ãããã³ã³ãã¥ãŒã¿ã®ãªãœãŒã¹ã«è² æ ããããŸãããã£ããŒã«ã倱ãããšãªããã¡ã€ã«ãµã€ãºãå°ããããããšã§ãå¹çãåäžããŸããã¡ãã·ã¥åœ¢ç¶ãåçŽåããããšããå§ããŸããããBlenderã®ãããªããŒã«ã䜿çšãããšãã¡ãã·ã¥ãç°¡ç¥åããããªãŽã³æ°ãæžãããªãããéèŠãªãã£ãŒãã£ãŒãä¿æããããšãã§ããŸããæ§é è§£æã¯ããã©ãã«ã·ã¥ãŒãã£ã³ã°äžã«çºçããäžè¬çãªåé¡ãæµ®ã圫ãã«ããŸãïŒåé¡ã®çš®é¡èª¬æéããããŒã«ããšããžéããããŒã«ããšããžã¯ãã¡ãã·ã¥æ§é ã®æ··ä¹±ãåŒãèµ·ãããå°å·ããã»ã¹ã§åé¡ãåŒãèµ·ããå¯èœæ§ããããŸãã穎ã¡ãã·ã¥ã«ééããããšãå°å·ãäžå®å šã«ãªããå šäœçãªå質ã«åœ±é¿ããŸããéãªãåããžãªã¡ããªãªãŒããŒã©ããã¯ãå°å·æã®äžæ£ç¢ºããæããæçµè£œåã®æ¬ é¥ã«ã€ãªãããŸãããããã®åé¡ã«å¯ŸåŠãããã¡ã€ã«ãµã€ãºãæé©åããããšã§ãå°å·ããã»ã¹ãåçåããé«å質ã®çµæãç¶æããããšãã§ããŸãããã³ã: ãµã€ãºãçž®å°ããåã«ãå ã®STLãã¡ã€ã«ã®ããã¯ã¢ãããä¿åããŠãã ãããããã«ãããå¿ èŠã«å¿ããŠè©³çްãªããŒãžã§ã³ã«æ»ãããšãã§ããŸããå°å·ãæåãããããã®æ§é çå®å šæ§ã®ç¢ºä¿æ§é çå®å šæ§ã¯ã3Dããªã³ãã®æåã«éèŠãªåœ¹å²ãæãããŸãã匱ãèšèšãæ¬ é¥ã®ããèšèšã¯ãåããã²ã³å²ãããŸãã¯å®å šãªããªã³ãã®å€±æã«ã€ãªããå¯èœæ§ããããŸããããã€ãã®éèŠãªã¹ããããèžãããšã§ãã¢ãã«ã®åŒ·åºŠãšä¿¡é Œæ§ã確ä¿ã§ããŸãã1.å£ã®åããåæããå£ãèããšãããªã³ãã¯å£ãããããªããŸããã¢ãã«ã®èåããã§ãã¯ããããªã³ã¿ãŒãšææã®æå°èŠä»¶ãæºãããŠããããšã確èªããå¿ èŠããããŸããã»ãšãã©ã®ã¹ã©ã€ãµãŒãœãããŠã§ã¢ã«ã¯ãèåãæž¬å®ã»èª¿æŽããããŒã«ãå«ãŸããŠããŸããåãããå£ã¯ææãç¡é§ã«ããèãããå£ã¯åŒ·åºŠãæãªããŸãããã³ãã»ãšãã©ã®ææã®å Žåãèåã¯1.2ïœ2mmã广çã§ããæ£ç¢ºãªæšå¥šå€ã«ã€ããŠã¯ãããªã³ã¿ã®ä»æ§ã確èªããŠãã ããã2.æ¯ææ§é ã®è¿œå ãªãŒããŒãã³ã°ãæ©ã¯ãé©åãªãµããŒãããªããšåãäžãã£ãã厩ãããããããšããããŸããã¹ã©ã€ãµãŒãœãããŠã§ã¢ã䜿çšããŠããããã®éšåã®ãµããŒããçæããŸããæ¥è§åºŠïŒ45°以äžïŒãšé·ãæ°Žå¹³ã¹ãã³ã«éç¹ã眮ããŠãã ãããå°å·åŸã«ãµããŒããåãé€ãã®ã¯äœåãªæéãããããŸãããã¢ãã«ãæ£ããå°å·ãããããã«ããŸãã3.ã¹ãã¬ã¹ãã€ã³ããè£åŒ·ããç¶ãç®ãçŽ°ãæ¥ç¶éšåãªã©ã®ã¹ãã¬ã¹ãã€ã³ãã¯ãå£ãããããã®ã§ãããã£ã¬ããïŒäžžã¿ã垯ã³ããšããžïŒã远å ãããããµã€ãºã倧ãããããããŠããããã®éšåã匷åããŸãããããŸããããã«ã ããžã£ã€ãã€ãã®ã€ã³ãã£ã«ãã¿ãŒã³ã䜿ã£ãŠãã¢ãã«å šäœã«å¿åãåçã«åæ£ãããããšãã§ããŸãã4.ã€ã³ãã£ã«å¯åºŠã®æé©åã€ã³ãã£ã«ã®å¯åºŠã¯ãåŒ·åºŠãšææã®äœ¿çšéã®äž¡æ¹ã«åœ±é¿ããŸããå¯åºŠãé«ããããšãã¢ãã«ã®åŒ·åºŠã¯äžãããŸãããå°å·æéãé·ããªããææã®æ¶è²»éãå¢ããŸããæ©èœéšåã«ã¯ã20ïœ50%ã®ã€ã³ãã£ã«ã䜿çšããŸããè£ é£Ÿåã®å Žåã¯ãéåžž10ïœ20%ã§ååã§ããã¡ã¢: æ§ã ãªã€ã³ãã£ã«ãã¿ãŒã³ã§ã¢ãã«ããã¹ããã匷床ãšå¹çã®æé©ãªçµã¿åãããèŠã€ããŸãããããããã®ã¹ãããã«åŸãããšã§ãèŠãç®ã«çŸããã ãã§ãªããèä¹ æ§ãšæ©èœæ§ãåããã¢ãã«ãäœæããããšãã§ããŸãã匷åãªãã¶ã€ã³ã¯ãåžžã«ããªã³ãã®æåã«ã€ãªãããŸããSTLãã¡ã€ã«ã®ç·šéã¯ãããè¯ã3Dããªã³ãçµæãåŸãããã®ç»æçãªæ¹æ³ã§ãããšã©ãŒãä¿®æ£ãããã¶ã€ã³ãã«ã¹ã¿ãã€ãºãã粟床ãšå質ã®ããã«ã¢ãã«ãæé©åããããšãã§ããŸããé©åãªããŒã«ãšãã¯ããã¯ã䜿çšããããšã§ãç·šéãå¹ççãã€å¹æçã«è¡ãããšãã§ããŸããåå¿è ã§ããããã§ãã·ã§ãã«ã§ããSTLãã¡ã€ã«ã®ç·šéãæ¢æ±ããããšã§ããããžã§ã¯ãã®æ°ããªå¯èœæ§ãéããŸãããã£ãã詊ããŠã¿ãŠãå°ããªå€æŽãå°å·ç©ã®å€§ããªæ¹åã«ã€ãªããããšã宿ããŠãã ããïŒãããã質åSTLãã¡ã€ã«ãšã¯äœã§ããïŒãªã3Dããªã³ãã«éèŠãªã®ã§ããïŒSTLãã¡ã€ã«ã¯ã3Dããªã³ãã§äœ¿çšãããããžã¿ã«3Dã¢ãã«ãã©ãŒãããã§ããäžè§åœ¢ã䜿çšããŠãªããžã§ã¯ãã®è¡šé¢åœ¢ç¶ãå®çŸ©ããŸããããªã³ã¿ãŒããã®ãã¡ã€ã«ãé Œãã«ãããªã³ãããããªããžã§ã¯ãã®åœ¢ç¶ãšæ§é ãçè§£ããããã§ããå°éçãªãœãããŠã§ã¢ããªããŠãSTLãã¡ã€ã«ãç·šéã§ããŸããïŒã¯ããã§ããŸãïŒTinkercadãMeshmixerã®ãããªç¡æããŒã«ã䜿ãã°ãåºæ¬çãªç·šéãã§ããŸãããããã®ããŒã«ã¯åå¿è ã«åªãããé«åºŠãªã¹ãã«ãå¿ èŠãšããã«ãã¢ãã«ã®æ¡å€§çž®å°ãå転ã修埩ãè¡ãããšãã§ããŸãããã³ãïŒç°¡åãªç·šéã¯Tinkercadããå§ããããé«åºŠãªä¿®æ£ã¯Meshmixerã«ç§»è¡ããŸããããSTLãã¡ã€ã«ã®ç©Žãééã¯ã©ã®ããã«ä¿®æ£ããã®ã§ããïŒMeshmixerãBlenderã®ãããªãœãããŠã§ã¢ã䜿çšããŠãã®ã£ãããæ€åºããåããŸãããããã®ããŒã«ã«ã¯ã穎ãå¡ããã·ãŒã ã¬ã¹ãªã¡ãã·ã¥ã確ä¿ããèªå修埩æ©èœããããŸãã修埩åŸã¯å¿ ãã¢ãã«ãæ€æ»ããå°å·ã§ããç¶æ ã§ããããšã確èªããŠãã ãããSTLãã¡ã€ã«ã倧ããããå Žåã¯ã©ãããã°ããã§ããïŒããªãŽã³æ°ãæžãããŠã¡ãã·ã¥ãåçŽåããŸããBlenderã®ãDecimate Modifierãã®ãããªããŒã«ã圹ç«ã¡ãŸããããã«ãããéèŠãªãã£ããŒã«ã¯ãã®ãŸãŸã«ããã¡ã€ã«ãµã€ãºãå°ããããããšãã§ããŸããå°ãããã¡ã€ã«ã¯èªã¿èŸŒã¿ãéããåŠçãç°¡åã§ããç·šéããSTLãã¡ã€ã«ãããŸãå°å·ãããããã«ããã«ã¯ã©ãããã°ããã§ããããïŒéããããŒã«ããšããžã亀差ããé¢ãé©åãªèåããã§ãã¯ããŸããã¹ã©ã€ãµãŒãœãããŠã§ã¢ã䜿çšããŠã¢ãã«ããã¬ãã¥ãŒããå¿ èŠã«å¿ããŠãµããŒãã远å ããŸããå®å šãªå°å·ãè¡ãåã«ãå¿ ãå°ããªéšåããã¹ãå°å·ããŠå€æŽã確èªããŸããæ³šïŒç·šéã倱ãããã®ãé²ããããé²æç¶æ³ã宿çã«ä¿åããŠãã ããã