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size of dimension text in sketch

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Message 1 of 16
lis_wang
1890 Views, 15 Replies

size of dimension text in sketch

Is there any way to change the size of dimension text in sketch? My students cannot see the dimension when I demonstrate the sketch.

 

Thanks

15 REPLIES 15
Message 2 of 16
JDMather
in reply to: lis_wang

Tools>Application Options>General tab Annotation Scale

 

See Tip #2 page 2

http://home.pct.edu/~jmather/SkillsUSA%20University.pdf


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Message 3 of 16
lis_wang
in reply to: JDMather

If your tutorial, how did you do in your Tips 39? I am reading your tutorial now. It is very informative.

Message 4 of 16
lis_wang
in reply to: JDMather

In your tutorial pg. 28, Tips 58. Did you create the ribs by creating a sketch? Is there any way to create a ribs just be section the drawing? I prefer this for quite some time already. It is very troulesome to manually do that especially in assembly drawing when there is a lof of parts.

 

Thanks

Message 5 of 16
JDMather
in reply to: lis_wang

I'll try to remember to post some examples tomorrow.

Note that there is an obvious error in the section view on page 28 (missing hatch on bottom of image) I keep forgetting to fix that image.


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Message 6 of 16
JDMather
in reply to: lis_wang


@lis_wang wrote:

If your tutorial, how did you do in your Tips 39? I am reading your tutorial now. It is very informative.


I decided to give this problem as a quiz to my students to see if they can figure it out.

Instructions for quiz (for anyone here wanting to attempt it).

1. You may not edit or delete any features or sketches already in the file. 

2. You may not add any sketches.

3. You can only add Rectangular Pattern 3 instances of slot 10mm apart.

4. You can only mirror the slots.

(see 2012 starting file attached) (viewers here - don't look at others solutions until you think you have solution)

 

Pattern Result.png

 


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Message 7 of 16
JDMather
in reply to: lis_wang


@lis_wang wrote:

.. It is very troulesome to manually do that especially in assembly drawing when there is a lof of parts.


There is no easy way (in Inventor) that I know of.  But it is easier (just a bit) than AutoCAD.


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Message 8 of 16
lis_wang
in reply to: JDMather

There is no right option in your quiz.

Message 9 of 16
lis_wang
in reply to: JDMather

I use this method to create rib in the drawing also. I found it is troublesome.

Message 10 of 16
JDMather
in reply to: lis_wang


@lis_wang wrote:

There is no right option in your quiz.


Don't know what this means.
I was responding to your two questions.

 

There is an easy solution to the quiz problem. Q1

There is not an easy solution to the section view problem. Q2


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Message 11 of 16
lis_wang
in reply to: JDMather

I tried to figure out your quiz:

 

1. You may not edit or delete any features or sketches already in the file.

2. You may not add any sketches.

3. You can only add Rectangular Pattern 3 instances of slot 10mm apart.

4. You can only mirror the slots.

 

The above quiz has no right answer

Message 12 of 16
stephengibson76
in reply to: lis_wang

there is a right answer

Stephen Gibson



View stephen gibson's profile on LinkedIn


Message 13 of 16
JDMather
in reply to: lis_wang


@lis_wang wrote:

I tried to figure out your quiz:

 

1. You may not edit or delete any features or sketches already in the file.

3. You can only add Rectangular Pattern 3 instances of slot 10mm apart.

The above quiz has no right answer


1. Examine the feature history tree in the image I posted.  (trick problem)
3. See the Tip 40 here http://home.pct.edu/~jmather/skillsusa%20university.pdf


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Message 14 of 16
lis_wang
in reply to: JDMather

I have done the pattern. Please look at file attached. As the Extrusion 1 is before the Shell 1, so the Extrusion 1 cannot be patterned exactly, unless I moved the shell 1 before Extrusion 1.  So I think there is no right answer there.

Message 15 of 16
JDMather
in reply to: lis_wang

In the feature history tree simply drag Shell1 to occur before Extrusion1 (I do not count this a change of the feature - it is a change in history.)  (Most students would delete the Extrude and Shell and recreate them in correct order rather than simply moving.)

 

Recognizing that the features or sketches to not need to be recreated or changed to get the desired results (like this problem) is an important concept in a history-based modeler.  There is (or was, I haven't taken the 2013 exam yet) a problem on the Certification Exam that uses this idea.  It is very simple to get the desired results, but if you try to remodel the part you waste too much time.  The candidate could run out of time to successfully complete the exam if too many easy problems like this are not recognized for the easy solutions.

 

Inventor geometry version of the classical "trick question" on a test.

I have a whole series of these for my 3rd yr students (that was a 1st yr pboblem)  that I use to get students to understand geometry and look for the easy solution rather than trying to work too hard.  The problems are a bit more complicated - takes me about an hour to solve each one, some a bit longer.  But prove to be nearly impossible to solve if you don't know the tricks.  The students always shake their heads on how easy the solution is once it is presented to them.   Here is an example we model this semester - then next semester we learn how to run FEA on this hook (and several others)hook.jpg.

 

 


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Message 16 of 16
JDMather
in reply to: JDMather

I should point out - as often is the case there is an incorrect dimension on the drawing.

When we start to model in 3D with geometric constraints we find these mistakes.

 

I used to work for a VAR demonstrating another 3D CAD nearly 20 years ago.

I would go through my dog-and-pony show and then the customer would throw some complicated drawing before me and ask - can it do this?  Every single time I would find an error in their documentation.


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