Can I get some proofing?

[AAAKings]

So I will start off. I am in my first year of college to be an aerospace engineer. For our final test this semester for drafting, we must do the three views for this 3-d object. I think I got it but with it being worth 40% of my final makr, I want it to be bang on. Attached is a picture of the assignment. The second thing is my drawing of it. I know I need to scale it still But other than that, critisicm would be greatly appreciated.

Pipe.dwg

[ReMark]

Drawing it all in 3D would allow you to extract the necessary 2D views via the SolView and SolDraw commands.

[mrbucket]

Drawing it all in 3D would allow you to extract the necessary 2D views via the SolView and SolDraw commands.

 

^yes. Are you supposed to do it in 3d or 2d? The 2d drawing is extremely simple for a final.

[JD Mather]

Your top view is not even orthogonally projected. Did you get any instruction or did you have to figure it all out yourself?

 

Now that I look at it a bit closer your right side view isn't projected either.

[Guest]

I know I need to scale it still

 

I don't know what they teach in school anymore, but I was taught you NEVER draw something 2:1 (or any other scale for that matter), it is always drawn at 1:1. Paper space is used to set your scaling.

 

In addition to JD Mather's comment, your object is a little under sized. You are also missing some of your hidden lines (all can be found by orthographic projection). The front/section is missing altogheter.

 

I would suggest starting with the front view & getting that correct. the side view as you have it is pretty close, and will need minor modifications to it.

[AAAKings]

It is supposed to be 2-D. The Front, Right, And Top view. He gave us that sheet and told us to go at it. I realized i forgot to Section it, but I don't want to do that until I got the outside done properly. I appreciate the criticism, but could you be a bit more specific in to which I need to edit?

 

P.S. Only reason we are doing this to 2:1 is because we need to draw it by hand and the larger it is the easier. (First year, taught nothing)

[ReMark]

Draw it by hand? So you're doing this all on a drafting board?

[AAAKings]

Right now I am doing it on autocadd because I wasted too much paper last drawing I did. So I figured I'd get it on Autocadd then draw it out by hand.

[ReMark]

I take it you have no experience with 3D?

[AAAKings]

None, unfortunatly. I can honestly say I am a complete Noob and have learned dick all. Waste of $2500.

[ReMark]

That's really too bad on many fronts.

 

Well if you had some 3D experience then I would have suggested constructing the flanged elbow (my terminology here could be wrong) as a solid. Then using the Solview command produce the required views. Finally, the use of the SolDraw command would have extracted the 2D geometry including any hidden lines and when a section was cut it would depict cross-hatching as required. But, as they say, "that ain't gonna happen".

 

Some of the failure to learn could possibly be laid at the feet of your instructor but ultimately you bear a portion of the responsibility too. No offense intended. Just calling it 'em as I see it.

[ReMark]

This is a "rough" approximation of the elbow done as a solid. I say rough because my eyesight isn't all that good. I may have misread a dimension or two.

 

 

AutoCAD has the ability to extract the 2D views from this 3D object using the commands I mentioned in my previous post. No further drafting would be required other than adding dimensions and notes.

[AAAKings]

WOW. That looks amazing. I agree I should have said something earlier, but we as a class are going to speak to the dean about this teacher. How hard would it be to learn how to draw it in 3-d and then extract? Are there any good tutorials?

[ReMark]

Like I said it is "rough" but thanks just the same.

 

The commands you would have to become familiar with to produce something akin to what is shown above are: Extrude (or Sweep), Subtract and Union. I also used the Region command. You would also have to know how to manipulate the UCS. We've already touched upon the commands for generating the 2D geometry. However, their use woud require further instruction.

 

You'll find some 3D tutorials here as well as at other AutoCAD-related websites. A good after-market AutoCAD book wouldn't hurt either as the AutoCAD User's Guide is written more from a programmer's point of view than someone who actually uses AutoCAD day in and day out.

 

It appears you have about a week to complete the task. It might be doable with the right help. Where are you located?

 

Gotta go now. It has been a long day for me. I'll check this thread again in the morning.

[AAAKings]

Thank you so much, I will try tonight and I will post my results as they progress. I really do Appreciate the help.

[AAAKings]

I found an amazing tutorial and finished my 3-D view. Its 2:1 scal as requested and criticism is definetly appreciated. I am looking for a tutorial on how to section and make it 2-D. I can't seem to attach it, but It is available for download at http://www.filefactory.com/file/a1hgf2f/n/3-D_Flange.dwg .

[97catintenn]

I need the tutorial, would you please share it.

[ReMark]

TripleA: I could not download your file. What's the secret?

 

Glad to hear you have made some progress especially considering it is in 3D. Way to go!

 

The three most common methods of producing 2D content from a 3D object are:

 

1) Flatshot

 

2) SolProf

 

3) The comination of SolView and SolDraw (used in that specific order)

[ReMark]

Flatshot: Creates a 2D flat block of a 3D model.

 

SolProf: Creates a snapshot of a 3D object through a viewport. It uses the viewport as a reference points creating a 2D block from this view.

 

SolView: Sets up the views of the 3D object (front, side, top, section, etc.).

 

SolDraw: Draws the 2D entities of the 3D objects.

 

SolView and SolDraw work together to produce a final product.

 

Read up on each method then decide for yourself which way you want to proceed.

[JD Mather]

Its 2:1 scal as requested.

 

Models should never be scaled - always 1:1 - just like the real world. The view representation of the model are what is scaled as needed for documentation. The software takes care of this for you. This should have been covered in your class.

 

Before you try to attach a file here, in Windows Explorer right click on the filename and select Send to Compressed (zipped) Folder. Attach the resulting *.zip file here.

 

I think if I were paying for an education today I would want to be learning one of the next-generation 3D CAD tools like Autodesk Inventor rather than a 25-year old program like AutoCAD. At Autodesk University last week much of the emphasis was on analyis capabilities that are in the next-generation tools. 3D has moved from the Possible domain into the Expected, and in many cases, Required domain. On Friday you might check out the Keynote address at http://au.autodesk.com.

 

Students can get access to an AU Virtual Premier Pass for all of the recorded sessions.

Students can download free Autodesk next-generation software from http://www.autodesk.com/edcommunity now a million members strong.