how do use CAD

[fly boy]

hey guys
I'm working on my 104 inch yak but i don't know how to use CAD can some one help.

[yonatan]

what do you wand to draw?

[fly boy]

100 to 130 inch yak 54 siler to like the AW or QQ one

[yonatan]

Well...
this is a Big CAD project!
i would highly recomend you to try design a small airplane and see how it goes
there are some dxf/dwg files over the internet you can use to start with
i use solid works and pro E i think those are the most easy softwere to use for 3d objects design
AUTOCAD works good but more for 2d drawings (for my opinion, i am sure its a matter of taste)

[Boogie]

It's good to have a buddy who can help you with the basics. When I first tried some 2d CAD friend came here and spent only about an hour showing me the basics and I was taking notes. Then when I really had problems and spent countless hours trying to do something and couldn't achieve the goal he was always there to help me. If you have any trouble just ask here.

[fly boy]

can i some how take a pic of a yak and convert it to CAD for out lines.???

[Ion01]

Yes, you can import the image and then draw on top of the image. Then scale it up our down til it is the size you want.

[shockflyer12345]

Hoy do you import a image in AutoCAD 2007?

[Ion01]

Type in the command line: imageattach

[Rikard Levenstam]

I have designed and machined in my CNC machine, i can tell you that this will need aloooot of time and knolleage... Please look at my Sukhoi if interested in Cad/CAM www.modellbyggeriet.se/sukhoi

My next project ready for machining is a small F3A machine (935mm span)

Good luck!

/Rikard

[airriley]

Don't get discouraged it is a bit to learn though at first. But with a few basic commands you can be well on your way to 2d drawing. I type my commands in because i started on CAD 6 and just stuck with the habit so I cant help you in telling you what the buttons are without looking at them but you will find that you use a few commands over and over and will allow you to get most everything done.

Line - L or line
Trim - Trim
Extend - Extend
Circle - Circle
Spline - Spline (play around with this, you will use it for many aircraft related curves) I use it a lot to import a picture and "trace" over it. It's like bending apiece of wire, you can get any shape you want.)
Many commands you can just type in at the command bar.
If you seearch hard you will even find dxf drawings of airfoils on line.

Good luck

[fly boy]

thanks guys but im not gonna bother right now got most of my yak done
i got enough projects being built right now.
that planes awesome for a first time at cad.