Trying to figure out how to enable Inverse Time Fucntion

[carboxyll]

Hello all,
I have a HAAS TM-3P with a 4th axis. I'm currently spiral cutting a 14" job but the 4th axis does not seem to be moving as fast as it should. The 4th has a max speed of 130deg/sec which works out to be 21.6 rotations a minute. I have a the feed set to F400. IPM which is the max travel speed of X,Y,Z axis. I believe it's cutting around 10 rotations a minute. I know it can travel much faster because I've done it doing rapid motion.

I think i should be using inverse time function? I can't seem to find this option in BobCad V29, is this something that is only available in 4th axis Pro?

Here is a snippit of code:

%
O0100 (PROGRAM NUMBER)
(PROGRAM NAME - COARSEHEREWEGO.NC)
(POST - Haas OEM V26 4axis)
(DATE - WED. 03/01/2017)
(TIME - 09:08AM)

N01 G00 G17 G40 G49 G80 G20 G90
N02 G90

(FIRST CUT - FIRST TOOL)
(Machine Setup - 1-Feature 4 Axis Rotary-4 Axis Rotary)
(FEATURE 4 AXIS ROTARY)

(TOOL #1 0.703 ENDMILL ROUGH)
N03 T1 M06
G92 A9720.0
N04 A9924.931
N05 G00 G90 G54 X-13.2569 Y-0.0002 S6000 M03
N06 G43 H1 D1 Z3.5
N07 Z2.9955
N08 Z2.8955
N09 G01 Z-0.0045 F400.
N10 X-13.2568 Z-0.0011 A9924.338
N11 X-13.2561 Y0. Z0.0135 A9921.837
N12 X-13.2554 Y0.0002 Z0.0265 A9919.337
N13 X-13.2547 Y0. Z0.0404 A9916.836
N14 X-13.254 Y-0.0002 Z0.0528 A9914.336
N15 X-13.2533 Y0. Z0.065 A9911.836
N16 X-13.2526 Y0.0002 Z0.0761 A9909.335
N17 X-13.2519 Y0. Z0.0856 A9906.835
N18 X-13.2512 Y-0.0002 Z0.0959 A9904.334
N19 X-13.2505 Y0. Z0.1066 A9901.834
N20 X-13.2498 Y0.0002 Z0.1197 A9899.333
N21 X-13.2491 Y0. Z0.1318 A9896.833
N22 X-13.2484 Y-0.0002 Z0.1433 A9894.332
N23 X-13.2477 Y0. Z0.1538 A9891.832

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[BurrMan]

Hello all,
I have a HAAS TM-3P with a 4th axis. I'm currently spiral cutting a 14" job but the 4th axis does not seem to be moving as fast as it should. The 4th has a max speed of 130deg/sec which works out to be 21.6 rotations a minute. I have a the feed set to F400. IPM which is the max travel speed of X,Y,Z axis. I believe it's cutting around 10 rotations a minute. I know it can travel much faster because I've done it doing rapid motion.

I think i should be using inverse time function? I can't seem to find this option in BobCad V29, is this something that is only available in 4th axis Pro?

The settings are in the post processor. But, some settings in the feature level wont output G93, like if you selected "Along" as your pattern type. Around and spiral types will output G93's.

Attach your bbcd file and post processor if you need help looking at it (Zip them). Open your post processor in notepad and review lines 322, 323 and 714. Also line 441 set to 2?. Not sure if setting line 440 to something other than continuous would affect this either.

[carboxyll]

The settings are in the post processor. But, some settings in the feature level wont output G93, like if you selected "Along" as your pattern type. Around and spiral types will output G93's.

Attach your bbcd file and post processor if you need help looking at it (Zip them). Open your post processor in notepad and review lines 322, 323 and 714. Also line 441 set to 2?. Not sure if setting line 440 to something other than continuous would affect this either.

Sorry, yes.... i meant to say it was a spiral cut. I was looking at the post processor yesterday and I did see the inverse time variable but I didn't really understand how to edit the post processor. The 322,323,714,441,440 looked good to me?
I appreciate your help. Attached is a .zip of the post and .bbcd.

Thank you again.

[BurrMan]

So it looks like the post is missing a variable that outputs the inverse instruction.

I added "movement_mode" variable (without the quotes) to the standard start of file and "feed_mode" to line 55 also, and your post now outputs the G93 at the start....

It IS a different post than the standard BC_4x_Mill post we use, so I cant really confirm that that is the entire change needed or if it outputs good for your machine etc.....

My suggestion would be to start with the BC_4x_Mill standard post, then modify "IT" with the changes your machine needs, referring to the OEM has post as a reference.

If you are uneasy with that, and want your post to do inverse, I would refer to the BC_4x_Mill post for the feed_mode variable and be sure it's where it needs to be. (see the other 50's lines, etc....)

But I know nothing about your machine... here is your post with just the 1 line changed to test.

[Edited and corrected variable names in text]

[carboxyll]

So it looks like the post is missing a variable that outputs the inverse instruction.

I added "movement_mode" variable (without the quotes) to the standard start of file and "feed_mode" to line 55 also, and your post now outputs the G93 at the start....

It IS a different post than the standard BC_4x_Mill post we use, so I cant really confirm that that is the entire change needed or if it outputs good for your machine etc.....

My suggestion would be to start with the BC_4x_Mill standard post, then modify "IT" with the changes your machine needs, referring to the OEM has post as a reference.

If you are uneasy with that, and want your post to do inverse, I would refer to the BC_4x_Mill post for the feed_mode variable and be sure it's where it needs to be. (see the other 50's lines, etc....)

But I know nothing about your machine... here is your post with just the 1 line changed to test.

[Edited and corrected variable names in text]

Thanks! This got me going.... I also realized that the generic HAAS_OEM post generated a G93 toolpath, but the HAAS_4X_OEM did not...odd. Regardless I'm up and running. Thank you again