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Author Topic: Fanuc Rotary Post for Version 1.0  (Read 450 times)
jim1108
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« on: June 03, 2018, 00:45:55 am »

CB version 1.0 only!

For rotary milling where the tool stays on Y centerline and the A and X axis sync with each other.


Remember to set your stock surface , clearance plane, and final depth of cut off the center line of the work surface.

Your drawing will have to fit the circumference of the work piece of course.


Depending on your machine configuration, the feed rate during the rotary motions may have to be bumped up significantly. Some machines do not have a setting for telling it what radius you will be cutting at.


Typically on my machine I teach Z zero on the part and add a negative value of the  part radius to that work offset.


This post is similar to my last Fanuc post upload.
   

* Fanuc 4th Axis.cbpp (1.94 KB - downloaded 8 times.)
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lloydsp
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« Reply #1 on: June 03, 2018, 00:58:08 am »

Thanks for the contribution.  Every post-processor teaches us more.

Lloyd
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Bubba
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« Reply #2 on: June 03, 2018, 16:49:09 pm »

Thank you for this.
 I wonder, Mach3 can run 4th Axis so, how much it differ from fanuc 4Th Axis post?
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jim1108
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« Reply #3 on: June 03, 2018, 18:25:34 pm »

I am not sure about Mach 3, but the Mach 3 post seems very similar to Fanuc, so I think it may work.

I just did a minor edit to the post and here it is. Some machines may not like the way it would rapid up in Z and back to A0 at the same time at the very end of the program. My machine will always do the Z move first in a rapid, so it was not an issue.

All I did was replace the clearance plane with a G91 G28 Z0 move instead, so the A0 is not posted in the same move. A little safer I think.

* Fanuc 4th Axis.cbpp (1.93 KB - downloaded 5 times.)
« Last Edit: June 03, 2018, 18:27:31 pm by jim1108 » Logged
Bubba
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« Reply #4 on: June 03, 2018, 19:47:19 pm »

I am not sure about Mach 3, but the Mach 3 post seems very similar to Fanuc,
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What do you think, Dh42 (David)?
I read somewhere while back the Fanuc post gcode and generic/Mach3 gcode are compatible..No? Cheesy
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dh42
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« Reply #5 on: June 04, 2018, 04:40:59 am »

I am not sure about Mach 3, but the Mach 3 post seems very similar to Fanuc,
********************
What do you think, Dh42 (David)?
I read somewhere while back the Fanuc post gcode and generic/Mach3 gcode are compatible..No? Cheesy

Hello

Yes, I also read that fanuc and mach3 Gcode are very similar Wink

++
David
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jim1108
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« Reply #6 on: June 06, 2018, 01:32:11 am »

Depending on how you draw your geometry this post may throw a Y move off center line as the first position instead of going to Y0. (Bad)

I would either align my drawing to Y0 or just manually edit it in the code. It only does this on the first rapid move to position, so no big deal.

The problem was (stupid me) the macro in the post telling the tool to move to the first Y position (in this case the first geometry CB wants to cut). This is fine for non rotational work.

All I did was replace the macro with a Y0 hard coded into the post. The macro for the x move stays the same.

Here it is.

* Fanuc 4th Axis.cbpp (2.01 KB - downloaded 1 times.)
« Last Edit: June 08, 2018, 16:38:17 pm by jim1108 » Logged
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