Help fellow engineers/CAD users!!

[coombsie66]

Right, i need to draw out some internal Involute Splines in a hub design i have in Solid Works 3D drawing program. I only need a 2D DXF representation of the splines to be able to transfer them to my model.
There are programs out there that do a DXF output for the specified data inputs, such as GearTrax.
GearTrax has a free trial, which i have been trying to use, but it wont let me!

So can anyone help me in how to draw involute splines, i have all the details and specifications of the splines, PCD internal Exteral diameters etc.

Anyone drawn involute splines before? Or know how to? Or have a program that does it for you!?!?

Any help would be gratefully recieved, as i need this drawing done ASAP to send the workpiece off to ge the splines wire eroded.

[jon_s]

LOL! That was like reading another language! :shock:

not 100% sure but maybe Deth might know how... or at least I know he uses some of those types of programs

[coombsie66]

Originally Posted by jon_s LOL! That was like reading another language! :shock:

Haha, well the warning's in the title!

My group's CAD monkey (otherwise known as my housemate) thinks he can do em, but its gunna take a while.
Thanks for the replies guys, i may cive Deth a PM!

[deth]

sorry, havent worked with splines b4, but this looks like a pretty easy and FREE prog to use. what kinda of spline exactly do u want? if u can't find nething to do u u could always do one tooth and make it a circular pattern, but thats a lot of work

http://quickgear.bizland.com/id9.html

[coombsie66]

^^ Yeah, ive got that program DL'd already! Unfortunately it doesnt actually give you a drawing, which is the one thing i need!
I have every parameter i need, so it should be easy to draw, if i knew how!!!! Oh well, we'll see what happens.
Cheers for the help.

[Wutputt]

I never had to draw splines before in CAD and never use Solid Works before. So I can't really help you. But doesn't your CAD-progam has some help feature? If I don't know how to do something in a more complicated computer prog I use the help feature and try to do a search. Sometimes this works and the help feature has a nice description of the stuff I'm looking for.

Or does your CAD program has the ability to import Matlab m-scripts? If that's possible you may just make your spline in Matlab or use the Matlab Spline Toolbox and import the Matlab spline into the CAD program.

[gottacatchup]

I know how to use the standard AutoCAD and Inventor for 3D and 2D stuff but i have no idea how to do what you're asking.

[coombsie66]

Right, no worries guys, i finally got it done today, a very kind man called steve who i think ownes one of these software sites that draws these gears sorted me out with the files i needed.
It did then take about 3 hours to eventually integrate them into our design model, but it appears to be done!! WOHO.