A few questions

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1. The 2D Model view I presume is drawn in a 1:1 scale, i.e. true length. Only when it gets moved to the Sheet view is it scaled. Is that correct?

2. In many cases, be it 2D Model or Sheet view I need to draw at an off set from a specific point on the drawing not from the nebulous origin/zero point provided.
So how do I move the origin so I can work from a more convenient origin?

3. The tutorials that come with this simply are non useful when it comes to basic detail of operation.
Simple they came close to me considering this product a total waste of my time.
Yes I am toying with this and toying is the operative word. I have at present no intension of spending time to guess how to do things while putting a design together using this. May be much later.
What I have picked up was via guess work. The online help does little for a basic beginner except make one cry for help.

4. How about a decent manual with this or more useful tutorials?

You would like us hooked on this and then happily progress to the 3D version, fine sensible approach. But the bait on the hook is a tad unpalatable for this fish at present.

What I want is CAD program that will develop 3D from my 2D drawings. If that is what the overall intent being OK, but if I have enough headaches with the basic 2D part I will not progress to the intended purchase phase for 3D.

Thanks
15 REPLIES

Re: A few questions

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I'll give it my best shot to answer your questions.
1. Yes, you draw geometry in 2D Drafting at 1:1 scale. If you are designing
a car, draw a car.
Don't draw a car the size of a model car because of the paper you want to
print it on.
When you place 2D Model Views on a working sheet (Sheet1). You are NOT
moving the geometry to the working sheet.
All you are doing is opening a window into the 2D Model from the working
sheet. You apply scale to the window (2D Model View).
The geometry displays at the scale specified. Dimensions placed on the
geometry of the 2D Model View will read the correct value.
You create a 2D Model View that is large enough to see the front wheel of
the car. Well, a car wheel is larger than a 8X11 sheet of paper.
So, the 2D Model View is scaled so that it fits on the 8X11 sheet of paper.
You can specify what scale to use.
The wheel did not move. The size of the wheel did not change. You are only
viewing the wheel at the scale specified.
If you dimension the wheel diameter from the working sheet, it will display
the actual size of the wheel, not the scaled value of the display.
2. Give me an example of what you want to do with the origin. Does it matter
where the overall geometry sits in space?
3&4. I agree that we need to add more tutorials. A tutorial on scale would
be valuable.
Solid Edge makes it easy to take your existing 2D Drawings and use them to
create 3D Models. You loose nothing that you have created.
Look at the following youtube video.
In this example, the drawing was imported from AutoCAD, but your drawings
created directly in 2D Drafting work just as well.
Copy and paste the following link into your browser.
http://www.youtube.com/watch?v=okajibbDFiA
Regards,
Rick B.

Re: A few questions

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Rick,
Thanks that clears up some issues.

Changing origin:

With the issue of changing the origin the attached picture is an example. Most of the frame items are defined by off sets from either an edge or from the vertical centre line, ie end view

So in section AA the origins used are either in the left hand bottom of table edge, or the centre line through the leg posts.
In Section BB the origin was the left hand bottom corner of the table top.

In reality it is a bit hard to relate this diagram construction to Solid Edge 2D as it was done using TurboCad on a PPC Mac. Simply I got so frustrated that I got hold of a friend and he gave me his old TurboCad, v2, 1995, as he had moved to Intel Macs and it was of no use to him anymore. Ok it was an early version but it saved a lot of frustration.

Besides changing origins it had rulers that moved with the origin, really helpful.

Now for me to try to do the same in Solid Edge I hit big snags. One is the off set issue. The only way I can see around that is to almost move the whole drawing and replace it on the fixed origin. That seems to miss the whole point of CAD in the first place.

Another issue is aligning parts. Collinear and connect relation seem to work but I am not sure if that is the correct way. But when I get a piece that is to be attaché to another but not meeting on a point/corner actually aligning the thing becomes fiddly.

The Smart Dimension is a weird issue as it does not seem to have a fixed point when it makes a change in dimension. There must be a point of reference it uses as its origin to make the dimension changes but how is that defined? It seems to vary.

Re: A few questions

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Rick, I think I have solved the origin issue at last..

For the first time I have noticed in the Home->Draw->Grid the ability to move the origin. Either the tab menu did not appear or I just clicked the grid icon and hence the tab menu did not show.


Just remember my designs I use are normally sketched up, free hand, on about 5 sheets of paper and only decipherable by me. My drafting work is limited to that real stuff using drafting board, squares and drafting machine and paper..
My experience with CAD is limited and AutoCAD is in the never used basket.

Re: A few questions

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Can you post the attachment again?
Rick B.

Re: A few questions

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Can you post the attachment again?

Rick B.


OK silly question here, which one, or I can email a better version?

Re: A few questions

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Re: A few questions

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If you are working with imported geometry, the geometry will not be
constrained.
The use of colinear constraints works well when trying to align multiple
views.
One thing you may want to consider is to use the Lock constraint on a corner
of the base view.
This will fix the location so that as you change dimension values and add
constraints, the part will grow from that location.
regards,
Rick B.

Re: A few questions

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Does that mean that changing the base view the other views will then alter with that base view alteration?
I gather I would have to lock some dimensions as that should not change.
The main changeable variable are the under table width-wise supports, legs and naturally table top, (width and length).
==
addition
With that table drawing, I can not import its geometry into SE2D anyway. The TurboCAD software used is too old to even allow the drawing to be imported into nominally old versions of TurboCad. So to put it in SE2D I will have to redraw it from scratch.

Re: A few questions

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If you have horizontal line in the base view, that line will project to a
line in a folded view.
If you want the line in the projected view to remain aligned to the original
line of the base view, make the two lines colinear.
If the original line is moved because of a dimensional change, the line in
the projected view will move also.
You do not have to duplicate dimensions to position lines in the projected
view.
If you want to control the line in the projected view separately, do not
place the constraint and place a dimension.
Look at the attached file, Fully Constrained.dft.
Note that constraints do not print. You do not have to turn them off before
printing.
I used connect constraints instead of colinear so you can see the
projections.
Change the dimensions to see the base and projected views change.
The view to the right is not constrained to the base view. You would have to
dimension it separately or add constraints.
Notice that if you modify the thichness dimension on the bottom view, the
right side view thickness changes.
Regards,
Rick B.