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    <title>tema Re: Cannot extrude a solid en AutoCAD Forum</title>
    <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611408#M911223</link>
    <description>&lt;P&gt;hit post by mistake.&amp;nbsp; continuing on.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;open the attached dwg and look at the four splines I added.&amp;nbsp; I drew the points first and snapped to the points to draw the splines.&amp;nbsp; each&amp;nbsp;set of points has a spline drawn with Spline Fit and&amp;nbsp; Spline CV.&amp;nbsp; zoom and look at the junction of the two sets of splines. even though I snapped to the point on layer 2, the end of the spline is past the point. it was drawn with Spline fit, the other with spline cv.&amp;nbsp; Command CVSHOW or CV frame show in properties and the difference of the spline control points is obvious.&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;There are other options such as the tangency of the spline and formula used to calculate the spline that change the spline shape.&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;SPLINEDIT can be used to modify the splines.&amp;nbsp;&amp;nbsp; TRIM also works.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;dave&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Sun, 10 Dec 2017 11:39:36 GMT</pubDate>
    <dc:creator>parkr4st</dc:creator>
    <dc:date>2017-12-10T11:39:36Z</dc:date>
    <item>
      <title>Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611234#M911212</link>
      <description>&lt;P&gt;Again cannot, although i think i made it simple.&lt;/P&gt;
&lt;P&gt;Now i saw that it wasn't closed, and i closed it with the properties dialog and it worked.&lt;/P&gt;
&lt;P&gt;But why wasn't it closed? i made it with 2 splines that i snapped each other to continue, and used lines.&lt;/P&gt;
&lt;P&gt;When i see it's not closed, in the Properties dialog, how can i know where is it open? just zoom in on all the endpoints, isn't there a better way?&lt;/P&gt;</description>
      <pubDate>Sun, 10 Dec 2017 05:32:21 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611234#M911212</guid>
      <dc:creator>Karol-Or</dc:creator>
      <dc:date>2017-12-10T05:32:21Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611253#M911213</link>
      <description>&lt;P&gt;First Check your sketch is closed polygon and join all lines select the whole sketch together,&lt;/P&gt;</description>
      <pubDate>Sun, 10 Dec 2017 05:33:31 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611253#M911213</guid>
      <dc:creator>Anonymous</dc:creator>
      <dc:date>2017-12-10T05:33:31Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611277#M911216</link>
      <description>&lt;P&gt;It isn't closed.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="open.2JPG.JPG" style="width: 705px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/437193iC7B8656D366C23EC/image-size/large?v=v2&amp;amp;px=999" role="button" title="open.2JPG.JPG" alt="open.2JPG.JPG" /&gt;&lt;/span&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="open.JPG" style="width: 705px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/437194iD54FB29E1FB5625B/image-size/large?v=v2&amp;amp;px=999" role="button" title="open.JPG" alt="open.JPG" /&gt;&lt;/span&gt;&lt;/P&gt;</description>
      <pubDate>Sun, 10 Dec 2017 06:49:07 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611277#M911216</guid>
      <dc:creator>-FDC-</dc:creator>
      <dc:date>2017-12-10T06:49:07Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611392#M911220</link>
      <description>&lt;P&gt;the OP knows it did not close and how to close.&amp;nbsp; The question is why did it not close?&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;This and other web articles describe how splines are drawn onto the screen.&amp;nbsp; The spline endpoints&lt;/P&gt;
&lt;P&gt;&lt;A href="https://knowledge.autodesk.com/support/autocad/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/AutoCAD-Core/files/GUID-5E7D51E2-1595-4E0C-85F8-2D7CBD166A08-htm.html" target="_blank"&gt;https://knowledge.autodesk.com/support/autocad/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/AutoCAD-Core/files/GUID-5E7D51E2-1595-4E0C-85F8-2D7CBD166A08-htm.html&lt;/A&gt;&lt;/P&gt;</description>
      <pubDate>Sun, 10 Dec 2017 11:10:32 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611392#M911220</guid>
      <dc:creator>parkr4st</dc:creator>
      <dc:date>2017-12-10T11:10:32Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611408#M911223</link>
      <description>&lt;P&gt;hit post by mistake.&amp;nbsp; continuing on.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;open the attached dwg and look at the four splines I added.&amp;nbsp; I drew the points first and snapped to the points to draw the splines.&amp;nbsp; each&amp;nbsp;set of points has a spline drawn with Spline Fit and&amp;nbsp; Spline CV.&amp;nbsp; zoom and look at the junction of the two sets of splines. even though I snapped to the point on layer 2, the end of the spline is past the point. it was drawn with Spline fit, the other with spline cv.&amp;nbsp; Command CVSHOW or CV frame show in properties and the difference of the spline control points is obvious.&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;There are other options such as the tangency of the spline and formula used to calculate the spline that change the spline shape.&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;SPLINEDIT can be used to modify the splines.&amp;nbsp;&amp;nbsp; TRIM also works.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;dave&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Sun, 10 Dec 2017 11:39:36 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7611408#M911223</guid>
      <dc:creator>parkr4st</dc:creator>
      <dc:date>2017-12-10T11:39:36Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7613496#M911300</link>
      <description>&lt;P&gt;use a polyline instead of spline.&lt;/P&gt;</description>
      <pubDate>Mon, 11 Dec 2017 13:45:39 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7613496#M911300</guid>
      <dc:creator>Llam.Tech</dc:creator>
      <dc:date>2017-12-11T13:45:39Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7614620#M911403</link>
      <description>&lt;P&gt;Hi&amp;nbsp;&lt;a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/936694"&gt;@Karol-Or&lt;/a&gt;,&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;A method I like to use is to use FLATTEN first and then use BOUNDARY to make sure I have a nice clean outline. This worked very quickly with your drawing.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture.PNG" style="width: 400px;"&gt;&lt;img src="https://forums.autodesk.com/t5/image/serverpage/image-id/437733i938F8A85D0E4FD9B/image-size/medium?v=v2&amp;amp;px=400" role="button" title="Capture.PNG" alt="Capture.PNG" /&gt;&lt;/span&gt;&lt;/P&gt;
&lt;P&gt;&lt;SPAN style="color: #808000;"&gt;Please select the &lt;STRONG&gt;Accept as Solution&lt;/STRONG&gt; button if my post solves your issue or answers your question.&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Mon, 11 Dec 2017 19:17:24 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7614620#M911403</guid>
      <dc:creator>john.vellek</dc:creator>
      <dc:date>2017-12-11T19:17:24Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7618686#M911639</link>
      <description>&lt;P&gt;Hi&amp;nbsp;&lt;a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/936694"&gt;@Karol-Or&lt;/a&gt;,&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P style="margin: 0in; margin-bottom: .0001pt;"&gt;&lt;SPAN style="font-size: 10.0pt; font-family: 'Verdana',sans-serif; color: black;"&gt;I am checking back to see if my post or others helped you with your problem. Please mark a post or posts as accepted solutions if they resolved the issue or give me a bit more detail on this issue so we can continue to work towards getting this solved.&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P style="margin: 0in; margin-bottom: .0001pt;"&gt;&lt;SPAN style="font-size: 10.0pt; font-family: 'Verdana',sans-serif; color: black;"&gt;&amp;nbsp;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P style="margin: 0in; margin-bottom: .0001pt;"&gt;&lt;SPAN style="font-size: 10.0pt; font-family: 'Verdana',sans-serif; color: black;"&gt;Please hit the&amp;nbsp;&lt;/SPAN&gt;&lt;STRONG&gt;&lt;SPAN style="font-size: 10.0pt; font-family: 'Verdana',sans-serif; color: olive;"&gt;Accept as Solution&lt;/SPAN&gt;&lt;/STRONG&gt;&lt;SPAN style="font-size: 10.0pt; font-family: 'Verdana',sans-serif; color: black;"&gt;&amp;nbsp;button if a post or posts solves your issue or answers your question.&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Tue, 12 Dec 2017 22:52:23 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7618686#M911639</guid>
      <dc:creator>john.vellek</dc:creator>
      <dc:date>2017-12-12T22:52:23Z</dc:date>
    </item>
    <item>
      <title>Re: Cannot extrude a solid</title>
      <link>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7618854#M911648</link>
      <description>&lt;BLOCKQUOTE&gt;&lt;HR /&gt;&lt;a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/936694"&gt;@Karol-Or&lt;/a&gt; wrote:&lt;BR /&gt;
&lt;P&gt;Again cannot, although i think i made it simple.&lt;/P&gt;
&lt;P&gt;Now i saw that it wasn't closed, and i closed it with the properties dialog and it worked.&lt;/P&gt;
&lt;P&gt;But &lt;FONT color="#ff0000"&gt;why wasn't it closed?&lt;/FONT&gt; i made it with 2 splines that i snapped each other to continue, and used lines.&lt;/P&gt;
&lt;P&gt;...&lt;/P&gt;
&lt;HR /&gt;&lt;/BLOCKQUOTE&gt;
&lt;P&gt;To answer your question above, it'd be simple if you properly setup "osnap" or "osmode" before drawing lines.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;To fix&amp;nbsp;your problem and create&amp;nbsp;the extrusion, I prefer to convert all lines into a&amp;nbsp;closed pline and agree with John as "flatten" is something like "explode". It "converts" spline into pline.&lt;/P&gt;
&lt;P&gt;Therefore the&amp;nbsp;procedure may be&lt;/P&gt;
&lt;P&gt;1. use "trim/extend" to&amp;nbsp;ensure the end points of lines/splines are met.&lt;/P&gt;
&lt;P&gt;2. use "flatten" suggested to make spline to pline.&lt;/P&gt;
&lt;P&gt;3. use "joint" to joint all lines and plines so they will be converted into&amp;nbsp;a single closed&amp;nbsp;pline.&lt;/P&gt;
&lt;P&gt;4. then you'll be able to&amp;nbsp;create an extrusion.&lt;/P&gt;
&lt;P&gt;5. now holiday is not far away. &lt;img id="smileyvery-happy" class="emoticon emoticon-smileyvery-happy" src="https://forums.autodesk.com/i/smilies/16x16_smiley-very-happy.png" alt="Emoticono muy feliz" title="Emoticono muy feliz" /&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;HTH&lt;/P&gt;</description>
      <pubDate>Wed, 13 Dec 2017 00:46:23 GMT</pubDate>
      <guid>https://forums.autodesk.com/t5/autocad-forum/cannot-extrude-a-solid/m-p/7618854#M911648</guid>
      <dc:creator>BeKirra</dc:creator>
      <dc:date>2017-12-13T00:46:23Z</dc:date>
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