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12th Mar 2004, 07:54 pm
Could someone please point me in the direction of a tutorial on how to make a realistic thread,(tapering and paralell).
I have used the search but can only find lisp routines and at the minute I want to make sure I can do everything myself before I get into lisp.
I am particularly interested in mulitiple start trapezium threads.

While I am here, anyone know a good free site where I can display results to show them off in the showcase area?

I would like you all to see that your help is not going to waste. :wink:

22nd Mar 2004, 05:12 pm
BUMP??

Anyone out there?

Mr T
22nd Mar 2004, 11:36 pm
BUMP??

Anyone out there?

Just draw a box in 3d, divide it up in equal parts. Use the se parts
to create a SPLINE or 3D polyline then extrude along that as a path.

Nick

fuccaro
23rd Mar 2004, 07:15 am
The first thing coming in my mind is... Lisp. Also it is possible (I think) to calculate the coords with Excel and create a script file to draw a 3DMESH.

Nick
Did you find a way to extrude something along a Spline curve? Or we are talking about Inventor?

Mr T
23rd Mar 2004, 08:39 pm
The first thing coming in my mind is... Lisp. Also it is possible (I think) to calculate the coords with Excel and create a script file to draw a 3DMESH.

Nick
Did you find a way to extrude something along a Spline curve? Or we are talking about Inventor?

In acad 2k save as r12 *.dxf then import into acad 2k then extrude with that spline as a path.

In inventor there is a dialogue box for you, it's seriously easier.
Nick

24th Mar 2004, 06:41 am
thx for your help guys. From one of those sites I at least gained the knowledge that what I was doing was correct and it was autocad that was behaving strangely. I used one of fuccaros lisps to make a spiral and tried to extrude along that path but as I now know autocad wont do that.

thx for the lisp fuccaro :)

Mr t could you explain further about splitting a box and using the se parts??

Mr t is there a steep learning curve between ac and inventor and is it used in engineering??

Mr T
24th Mar 2004, 10:52 pm
Mr t could you explain further about splitting a box and using the se parts??

Mr t is there a steep learning curve between ac and inventor and is it used in engineering??

See the forum topic here

Inventor is so easy to learn and easier than acad. Rather than use the command line it gives you a dialogue box and live preview eg an external/internal thread. And a screw hole, asks and shows a counterbore or countersink and if it's threaded.

I'll post up a wee video clip showin gyou this if you wish.

Inventor is a mechanical and manufacturing modelling programme.

Nick

25th Mar 2004, 06:47 am
After reading your previous post I went straight to autodesk and had a look and from what I seen it looks ok. I'll have to get myself that as soon as possible. Is it worthwhile getting a book or not?

In reference to threads I have found some lisps and giving those a try instead. Best way forward I think.

Mr T
25th Mar 2004, 06:37 pm
After reading your previous post I went straight to autodesk and had a look and from what I seen it looks ok. I'll have to get myself that as soon as possible. Is it worthwhile getting a book or not?

In reference to threads I have found some lisps and giving those a try instead. Best way forward I think.

Try one of the test drives of inventor their free and excellent.

Nick