[cigla]

Hello!

Does any body now how to write the cnc program for wood splitting cone for Fanuc 21i?

[txcncman]

Upload a drawing. Program a taper. Then G76 for a taper thread.

[cigla]

Here is some drawing.
Hope you'll get all dimensions..

[cigla]

View image: trn

[txcncman]

Profile of taper will be:

X0. Z0.
X111.54 Z-134.

I think the thread cycle will be:

G00 X115. Z14.44
G76 P010060 Q50 R0.1
G76 X104.95 Z-134. P440 Q50 R-57.09 F4.

[cigla]

X0. Z0.
X111.54 Z-134.

This for taper is the last passage, right?

Before this passage i need to make something like stairs.
And thaen whit last passage with taper.
Is there cycle for this?

[txcncman]

X0. Z0.
X111.54 Z-134.

This for taper is the last passage, right?

Before this passage i need to make something like stairs.
And thaen whit last passage with taper.
Is there cycle for this?

Yes. Those numbers would be the final profile shape. There are canned cycles that can be used or you can manually calculate each cut. If you do not know basic CNC lathe programming, this project is too advanced for you. Start with the basics and work your way up to something like this.

[cigla]

Here is drawing of my cone. Can you help me with some cycle for get this conture.
I can write this program by writing point to point but i want some more elegant solution.

[txcncman]

So, you do not know G71 multi-pass turning cycle?

Do you have the machine manuals?

[cigla]

I have machine manuals but there are not on English language ,but German and i don't understand 100% this manuals.
Acualy we never use G71 function until now. i now use G76 function.

[txcncman]

You need to get some English language versions of the manuals. You will be needing them.

[txcncman]

In the mean time, you can reference pages such as this:

http://www.cnczone.com/forums/g-code...c_control.html

[cigla]

Thanks i will try to do this