AutoCAD 2013/2014/2015

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Active Contributor
lougalea
Posts: 28
Registered: ‎06-28-2012
Message 1 of 5 (179 Views)

sketch

179 Views, 4 Replies
10-12-2012 06:18 AM

Hello

 

I`m inexperienced at the moment.I have started a sketch but if i change dimensions say on the long thin rectangle the sketch falls apart..Also if i change a dimension on the top section of the sketch the lines move....what am i not doing

 

Lou

*Expert Elite*
Alfred.NESWADBA
Posts: 8,995
Registered: ‎06-29-2007
Message 2 of 5 (151 Views)

Re: sketch

10-13-2012 11:35 AM in reply to: lougalea

Hi,

 

because the top section is not bound to the lower one, with other words it's not fully contrained.

 

BTW: please use the modelspace to design your model (not the paperspace/layout).

 

- alfred -

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*Expert Elite*
JDMather
Posts: 26,651
Registered: ‎04-20-2006
Message 3 of 5 (139 Views)

Re: sketch

10-13-2012 05:49 PM in reply to: lougalea

Are you familiar with parametric geometry constriants and dimensions?

Please mark this response as "Accept as Solution" if it answers your question.
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Active Contributor
lougalea
Posts: 28
Registered: ‎06-28-2012
Message 4 of 5 (123 Views)

Re: sketch

10-14-2012 05:39 AM in reply to: JDMather

Hi

 

Is there a command on the screen which advises whether the sketch is fully constrained or how many constraints are needed to fully constrain

 

Regards

 

Lou

*Expert Elite*
JDMather
Posts: 26,651
Registered: ‎04-20-2006
Message 5 of 5 (117 Views)

Re: sketch

10-14-2012 06:21 AM in reply to: lougalea

Auto Constrain will tell you how many were missing.

But really - you should know what needs to be constrained (there is no auto-constrain out on the shop floor).

 

You have a lot of repeated dimensions - use symmetry and equal constraints.  Use geometry constraints before parametric dimensions.

Please mark this response as "Accept as Solution" if it answers your question.
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Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
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