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Cannot extrude a solid

Karol-Or
Advocate

Cannot extrude a solid

Karol-Or
Advocate
Advocate

Again cannot, although i think i made it simple.

Now i saw that it wasn't closed, and i closed it with the properties dialog and it worked.

But why wasn't it closed? i made it with 2 splines that i snapped each other to continue, and used lines.

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?

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Soluciones aceptadas (2)
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8 Respuestas
Respuestas (8)

Anonymous
No aplicable

First Check your sketch is closed polygon and join all lines select the whole sketch together,

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-FDC-
Advisor
Advisor

It isn't closed.

 

open.2JPG.JPGopen.JPG

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parkr4st
Advisor
Advisor

the OP knows it did not close and how to close.  The question is why did it not close?

 

This and other web articles describe how splines are drawn onto the screen.  The spline endpoints

https://knowledge.autodesk.com/support/autocad/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/AutoC...

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parkr4st
Advisor
Advisor

hit post by mistake.  continuing on.

 

open the attached dwg and look at the four splines I added.  I drew the points first and snapped to the points to draw the splines.  each set of points has a spline drawn with Spline Fit and  Spline CV.  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.  Command CVSHOW or CV frame show in properties and the difference of the spline control points is obvious. 

 

 

There are other options such as the tangency of the spline and formula used to calculate the spline that change the spline shape. 

 

SPLINEDIT can be used to modify the splines.   TRIM also works.

 

dave

 

 

 

 

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Llam.Tech
Advocate
Advocate

use a polyline instead of spline.

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john.vellek
Alumni
Alumni

Hi @Karol-Or,

 

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.

 

Capture.PNG

Please select the Accept as Solution button if my post solves your issue or answers your question.


John Vellek


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john.vellek
Alumni
Alumni
Solución aceptada

Hi @Karol-Or,

 

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.

 

 

 

Please hit the Accept as Solution button if a post or posts solves your issue or answers your question.


John Vellek


Join the Autodesk Customer Council - Interact with developers, provide feedback on current and future software releases, and beta test the latest software!

Autodesk Knowledge Network | Autodesk Account | Product Feedback
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BeKirra
Advisor
Advisor
Solución aceptada

@Karol-Or wrote:

Again cannot, although i think i made it simple.

Now i saw that it wasn't closed, and i closed it with the properties dialog and it worked.

But why wasn't it closed? i made it with 2 splines that i snapped each other to continue, and used lines.

...


To answer your question above, it'd be simple if you properly setup "osnap" or "osmode" before drawing lines.

 

To fix your problem and create the extrusion, I prefer to convert all lines into a closed pline and agree with John as "flatten" is something like "explode". It "converts" spline into pline.

Therefore the procedure may be

1. use "trim/extend" to ensure the end points of lines/splines are met.

2. use "flatten" suggested to make spline to pline.

3. use "joint" to joint all lines and plines so they will be converted into a single closed pline.

4. then you'll be able to create an extrusion.

5. now holiday is not far away. Emoticono muy feliz

 

HTH

Please mark "Accept as Solution" and "Like" if my reply resolves the issue and it will help when others need helps.
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A circle is the locus of a cursor, starting and ending at the same point on a plane in model space or in layout such that its distance from a given coordinates (X,Y) is always constant.
X² + Y² = C²