< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: -21pt; mso-list: l1 level1 lfo1; tab-stops: list 21.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-family: 宋体"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>一,<SPAN style="FONT: 7pt 'Times New Roman'"> 一。 </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算失败的问题:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com ffice ffice" /><o:p></o:p></SPAN></FONT></P>
+ D) @: _* t* M' b4 Y& T6 E< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">UG </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">操作中,经常碰到布尔运算加不上,减不掉,以及裁减,分割失败等问题。尤其是在面比较烂的情况下,分模,取滑块,斜顶经常碰到此类问题,可试着采用以下办法:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
2 ]3 x" I) u7 S1 X* m8 `( E# Q% V< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>1.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将工具体的面偏移或者移动少许距离来解决。(偏移或移动的距离要不至于影响加工的精度)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>1 s* b0 I/ t- w- @) v0 M! Z4 i
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>2.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用线框显示目标体,工具体,再做布尔运算(或裁减,分割)若失败,仔细观察,会发现部分的棱边显示为红色,此为问题区域,可将问题区域分割开来(即分成两部分),再作布尔运算,然后抽取问题区域面,缝合,处理,再补丁上去,此法可解决大部分布尔运算失败的问题。(也可将问题面偏置少许来解决)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>( E$ _9 c, D3 n1 ]( ^
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>3.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有时,布尔运算失败,可全部作成面,操作面,再缝合成实体。这种方法,可应付几乎所有加减失败的问题,但也最麻烦,实在没招的情况下才建议采用。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>) I0 I, K1 v4 z4 P- q
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2; tab-stops: list 18.0pt"><SPAN lang=EN-US style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><SPAN style="mso-list: Ignore"><FONT face="Times New Roman"><FONT color=#000000>4.<SPAN style="FONT: 7pt 'Times New Roman'"> </SPAN></FONT></FONT></SPAN></SPAN><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用实体缝合的方式来加两个物体,先选共同面,调整公差来缝合。但这种方式会为后续的操作带来麻烦。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
8 e% ^$ Z1 r0 l4 w8 F2 _< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">注:</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">a. </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算若产生多个体,将丢失参数,这也是执行</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">MW/mold tools </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Split_Solid</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">失败的一个原因。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
) L, v$ t! ]( P5 z5 X+ c- y2 T+ |! K< class=MsoNormal style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: 21pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">b.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用片体裁减实体,在实体区域内,片体不能有“边界”,或“面自交”的问题,这可用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Analysis / Examine Geometry<o:p></o:p></FONT></SPAN></FONT></P>
; b( P, J3 ^2 ~1 P. \( I/ V0 K< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">里的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Face_ Face Intersections </FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman">Sheet _Boundaries</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选项检查出来的。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>3 ?. z/ E7 }+ q
< class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>c.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算不能有“零厚度”现象产生。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></FONT></P>
1 j; f, u' S0 E p<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US style="FONT-SIZE: 12pt"><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>d.</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">布尔运算中,可以“面-面,……面-实体”。这两个选项在分模中补面非常方便。</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 12pt"><o:p></o:p></SPAN></P> |