LATHE CANNED CYCLE (INSIDE PROFILING)

[Anonymous]

The Fanuc post generate a positive U in the canned cycle for inside profiling which is the wrong way. It should be a negative U when using finish allowance.

[akash.kamoolkar]

@Anonymous 

We are aware of this issue and working on fixing it.

Thanks,

Akash Kamoolkar

[seth.madore]

Yes, this is a known issue, sadly. The team is aware of it and are working on a fix. No ETA on when though 😞

[Anonymous]

It's been noted before and it need correcting but for now, I was able to enter negative value for radial stock to leave and it posted correctly, with negative U value.

[Anonymous]

Thanks.
Would it be possible to have a G70 canned finish cycle too?

[akash.kamoolkar]

We do have the G70 on the development horizon but no definite time frame for when we might implement it.

Regards,

Akash Kamoolkar

[Anonymous]

It's probably been noted before. Independent finish allowances are very
necessary too..
To achieve good surface finishes I leave a lot more in the X than the Z..

Thanks guys.

[akash.kamoolkar]

@Anonymous 

We've already implemented variable X and Z finish allowances for canned cycles and they will be released in an upcoming update.

Regards,

Akash Kamoolkar

[Anonymous]

When putting negative value at u also puts negative value at w  and we want w positive or at least zero for internal G71-G72 canned cycle. 

Example   G71 P10 Q11 U-0.2 W-0.1 D1.2 F0.127

When simulating something like the above it cuts through material.

Because i use several times internal G71 with u and w both set to zero this works fine

G71 P10 Q11 U0. W0. D1.2 F0.127 

The main problem here is that u and w should be independent.I noticed that u value is two times w value when post processing even though X and Z finish allowance are the same.And that's ok by me ,because this is how i use them most of the time but there are instances that you may want a much larger u than w ,5 to 1 or even 10 to 1.

Also i can post process an internal profile with canned cycle G71 alone or with some operations together  but never as the whole setup (i can't understand the relationship-contradiction of operations even though i tried) --when i try it ,it ends up to this log

Information: Configuration: HAAS ST-20
Information: Vendor: Haas Automation
Information: Posting intermediate data to 'C:\Users\ria\Desktop\tassos\Post Process (G - code)\9998.nc'
Information: Total number of warnings: 3
Error: Failed to post process. See below for details.
...
Code page changed to '1253 (ANSI - Õ•û»û»÷·ý½ù¹úºî®)'
Start time: Friday, September 27, 2019 8:32:42 AM
Warning: function getProgramNameAsInt does not always return a value
Warning: function getProgramNameAsInt does not always return a value
Warning: function getProgramNameAsString does not always return a value
Code page changed to '20127 (ASCII-×—.à .Ñ‘.)'
Post processor engine: 4.3.0 45264
Configuration path: C:\Users\ria\AppData\Roaming\Autodesk\Fusion 360 CAM\Posts\haas st-20.cps
Include paths: C:\Users\ria\AppData\Roaming\Autodesk\Fusion 360 CAM\Posts
Configuration modification date: Wednesday, September 25, 2019 1:38:52 PM
Output path: C:\Users\ria\Desktop\tassos\Post Process (G - code)\9998.nc
Checksum of intermediate NC data: f0d60177b770aca9787bfe28f71d5abc
Checksum of configuration: eadd42c234130ed31d2f47cd9245fb29
Vendor url: https://www.haascnc.com
Legal: Copyright (C) 2012-2019 by Autodesk, Inc.
Generated by: Fusion 360 CAM 2.0.6440
...
Error: Cycle parameter 'marker' after first move. 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: Failed to execute configuration.
Stop time: Friday, September 27, 2019 8:32:42 AM
Post processing failed.

This   Error: Cycle parameter 'marker' after first move.   refers to internal profile operation with G71 for sure.

Hope i helped.

[Anonymous]

You are right about negative sign, looks like I mixed up something in my trials.

[akash.kamoolkar]

@Anonymous 

You are seeing the u value as twice the x finish allowance you enter in the operation dialog because u is being output in diameter coordinates. You can reset that in the post processor.

I have replicated the issue you reported. IT seems there is a bug when there is more than 1 canned cycle in a setup you cannot post process the entire setup without getting this error. We will look into this issue.

Regards,

Akash Kamoolkar

[Anonymous]

Also, when using the Canned Cycle the post outputs initial position as X0.
Z0. before the actual position of the tool. This can cause some trouble.
(this is actual code I just posted a minute ago.)

(PROFILE ROUGHING1)
M1
T0909
(.750 B BAR .015R)
G54
M8
G99
G97 S2500 M3
G0 X0. Z0.
G0 X0.95 Z0.1
Z0.0325
X1.
G71 U0.065 R0.04
G71 P10 Q20 U0.004 W0.002 F0.008 S2500
N10 G1 X1.603 Z0.
X1.563 Z-0.02
Z-0.125
X1.56
Z-0.693
G18 G3 X1.54 Z-0.703 R0.01
G1 X1.356
G2 X1.336 Z-0.713 R0.01
G1 Z-0.902
N20 X1.
G0 X0.95 Z0.0325
Z0.1

[akash.kamoolkar]

@Anonymous 

Yes, this is a known issue and we're working on fixing it.

Regards,

Akash Kamoolkar

[akash.kamoolkar]

To update everyone, the september hotfix 2 is now live and fixes both issues: incorrect U and W values as well as the incorrect X0Z0 rapid move in the beginning.

Regards,

Akash Kamoolkar

[Anonymous]

Keep up the good work guys!

[Anonymous]

Hi,

is this bug ,when two or more canned cycles exist in the same setup not post processing the setup as a whole, going to be fixed? (it's a bit frustrating having to split the post process in two or more parts and then edit).

[Anonymous]

I have a test setup with one G71 and one G72 cycle, I duplicated both so there are 4 cycles in same setup.

Everything posted fine in Haas and Doosan Lynx post.

[Anonymous]

I have an operation with two G71 canned cycles (one external and one internal) and the setup can't be posted as a whole ,only in two parts separating the two G71 operations. When i try to post the whole setup i get this log :

Information: Configuration: HAAS ST-20
Information: Vendor: Haas Automation
Information: Posting intermediate data to 'C:\Users\ria\Desktop\tassos\Post Process (G - code)\1018.nc'
Information: Total number of warnings: 3
Error: Failed to post process. See below for details.
...
Code page changed to '1253 (ANSI - Õ•û»û»÷·ý½ù¹úºî®)'
Start time: Sunday, October 13, 2019 4:44:59 AM
Warning: function getProgramNameAsInt does not always return a value
Warning: function getProgramNameAsInt does not always return a value
Warning: function getProgramNameAsString does not always return a value
Code page changed to '20127 (ASCII-×—.à .Ñ‘.)'
Post processor engine: 4.3.0 45264
Configuration path: C:\Users\ria\AppData\Roaming\Autodesk\Fusion 360 CAM\Posts\haas st-20.cps
Include paths: C:\Users\ria\AppData\Roaming\Autodesk\Fusion 360 CAM\Posts
Configuration modification date: Saturday, October 12, 2019 5:23:22 AM
Output path: C:\Users\ria\Desktop\tassos\Post Process (G - code)\1018.nc
Checksum of intermediate NC data: 0b3ce8f9115fbd7d6aa7f83ba6aa72f7
Checksum of configuration: 2c77eba2b849ea716648efa03550ea0a
Vendor url: https://www.haascnc.com
Legal: Copyright (C) 2012-2019 by Autodesk, Inc.
Generated by: Fusion 360 CAM 2.0.6516
...
Error: Cycle parameter 'marker' after first move.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: Failed to execute configuration.
Stop time: Sunday, October 13, 2019 4:44:59 AM
Post processing failed.

[Anonymous]

No problems here, you must have something in your Fusion file that should not be there, check grooving setting.

[Anonymous]

Groove settings are as they should. The bug occurs when you have a full setup of operations and trying to post process NOT when doing it with only two operations ,even if they are both canned cycles, as you did (i have the same results as you when doing it---post process is ok). I have attached an f3d file if you want to check and reproduce..(setup 2 is the one i'm refering)