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Archive through April 13, 2007Buell_4130 04-13-07  12:05 am
         

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Buell_41
Posted on Friday, April 13, 2007 - 12:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Autocad and 3d is like uhh....
bolt

IMHO
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Wademan
Posted on Friday, April 13, 2007 - 12:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Any of you guys have experience with UniGraphics or Catia???

Are they good for real world use?? I took a full year of UniGraphics in college and developed a love/hate relationship with CAD programs. After about 30 hours is when the possesive fatherly feelings towards my models happened. Never did get too in depth with the complex 3D, I always assumed other industrial design programs were used for that complicated ass stuff.
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Steve_mackay
Posted on Friday, April 13, 2007 - 02:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yes, anything from autodesk, imho, sucks. Including inventor. Their exports positively suck.

After about 30 hours is when the possesive fatherly feelings towards my models happened.

30 HOURS!?! Damn, I wish I had that much time to build a single job : )

Here's my last model I did for a "government job". A front engine mount. To mount XB heads on to tuber frames. I'll be whittling away at the billet aluminum tomorrow.
Here's the 3D PDF

You'll need a fairly recent version of Adobe acrobat reader to view the full 3D model.

btw, that model took less than 30 minutes to make in VX.
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Interex2050
Posted on Friday, April 13, 2007 - 02:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

3D pdf, that is incredible!
WOW
Things like that bracket, solidworks would not have trouble with...
Well unless one decides to do it with surfaces...
Please do let us know how that whole thing turns out!
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Court
Posted on Friday, April 13, 2007 - 06:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Our folks are using some iteration of AutoDesk with an analysis add-on.

I get the "output" and it is some amazing stuff.

I gave a talk to a Columbia Engineering class a week ago last night and my prediction is that in 10 years 2D will be history and folks will say . . ."there was really a day you had to look at 2 sheets to understand something".

Why most of you guys are doing "things", we're designing (at least through 2028) power stations. I'm leading an effort to teach old dogs new tricks (called 3G) and I'm finding that it's easier to hire "new dogs".

The problem is I have some young pups who are "Abe Smart" with the modeling and designing who need a shortcut to get access to my 35 years of experience.

Funny thing is but a model doesn't care if you install something upside down. This is amazing stuff that I only have a hint of how it works . . . I totally dig listening to you guys discuss.

Fun time to be a 50 year old engineering grad student.

: )
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Nevrenuf
Posted on Friday, April 13, 2007 - 07:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

that's pretty good for a 30 min draw steve. the one thing i know first hand is without more 3d experience i'm not gonna go that much further in my career. and anyone that says that autocadd 3d isn't easy is right. not very user friendly and i have 07 to play with at home. although 08 is supposed to change all that. we'll see. i'll be talking to a lady today about maybe learning autoplant. if i can get that deal then i'll be set.
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Punkid8888
Posted on Friday, April 13, 2007 - 12:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I use UG all day long (NX4). I’m a designer at GE aviation working on military jet engines.

I began using solidworks in school and have found that the two programs use the same basic core so they are almost identical.

Everything I do is almost 100% "sketch" with full constraints. The initial result is more time consuming but you get a parametric model that is easier to make drastic changes to in less time during the development process and through out the engines life cycle.

I use to play around with solidworks at home but my computer is so slow its just annoying.

I also find that I really don't have the creative mind to do unstructured models. Weird I know but I love to model to dimension and or drawings not from my head or just a simple sketch.

Although I do have a plan of modeling a set of Cal-Trac Bars for my Project truck. I just have not got around to it yet.
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Steve_mackay
Posted on Saturday, April 14, 2007 - 01:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Interex, here's some of my Billet Porn : )

http://www.youtube.com/watch?v=wc15Gi3Yz54
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Nevrenuf
Posted on Saturday, April 14, 2007 - 07:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

your you tube isn't loading up that good steve.

(Message edited by nevrenuf on April 14, 2007)
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Interex2050
Posted on Saturday, April 14, 2007 - 01:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks Steve, great little video!
That is just so spiffy, it reminds me of when I used to work at a machine shop...
Setting everything up was such a pain but the end result was always spectacular.
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Buell_41
Posted on Sunday, April 15, 2007 - 01:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Court, really good points. I think that knowing how to draft and THINK in 2D and 3D is still very valuable. I'm what you might consider a young pup being 26, but in college I had a series of classes where we used drafting boards, vellum, some yellow ammonia smelling paper for blueprinting, airbrushing... We were required to look at pictures of 3D shapes and hand-draft them into (at least) 3 orthoganal views.

I don't think anything will be able to replace paper napkin engineering. Sure you can go back and model it later, but to solve an immediate problem immediately, you simply must know to think without a computer.

Still, sometimes its just pretty freakin cool. This is something I'm modeling from scratch.


engine rendered
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Nevrenuf
Posted on Sunday, April 15, 2007 - 03:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

video came up that time, it looks like the machine's mill down in layers. that was the first time i got to see a milling machine go. that's pretty cool stuff.
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Interex2050
Posted on Sunday, April 15, 2007 - 03:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Buell_41,
That is some nifty stuff right there... well done!
Nevrenuf,
Its quite gratifying watching your creation emerging from a solid chunk of material...
It would be nifty to get a time-lapse of the whole process.


Here is some other stuff I started working on...






Sadly I am still stuck with the modeling of the frame
I need to figure out how picky I should be...
I want full detail, but the amount of detail is exponentially proportional to the amount of head pain...
Grumble grumble


(Message edited by interex2050 on April 15, 2007)
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Sinatra
Posted on Sunday, April 15, 2007 - 03:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

i make the milling and cnc machines do what you design......you guys sure are smart.......i was amazed at how many engineer types and machinists are buell owners....just for the design aspect of the bikes...salute.
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Nevrenuf
Posted on Sunday, April 15, 2007 - 07:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

i'm waiting for a final confirmation on a job that will allow me to learn autoplant and after learn 3d modeling up in chattanooga. if all goes right, i can be up there as soon as the 23rd. without that experience, my career is dead in the water pretty much. having that 3d experience is where it's at anymore.
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Steve_mackay
Posted on Monday, April 16, 2007 - 01:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yup. 2D is dead. In my trade(tool & die). 2D is still needed, but I don't really know anyone doing just 2D design these days.

Sinatra, I do both the engineering aspect, and CNC stuff myself. I'll post some pics of my finished tuber motor mount sometime tomorrow morning.
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Djkaplan
Posted on Monday, April 16, 2007 - 09:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

"Any of you guys have experience with UniGraphics or Catia???"

I used Catia 10 years ago. Can't remember the what version it was, but I remember how difficult the users manual was to understand because it was literally translated from French. I remember it would end every chapter with the phrase, "Is easy, no?".

Don't be afraid of 3D modeling systems like SolidWorks. It just takes a little time for it to be an extension of your imagination. The basic building block of a dimension driven solid is a 2D sketch. The extra dimension is added in an extremely intuitive way that's easy to work with and understand.
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