[num1bryanp]

Hello All,

I am having problems with my 1989 Bridgeport interact 720 with Heidenhain 351/355 controller.

After two years cleaning and rebuilding and creating a fusion 360 post, I think I have found why the machine was for sale in the first place.

When programmatic cutting the Y-axis is drifting at a constant rate, you can see on the screen Y changing, yet If I just manually make a cut it is square and Y does not change.

Here is a picture show the problem, the first arrow is showing the drift and the second is showing a manual cut that is square.

Any ideas?

Thanks, Bryan

Attachment 412548

[num1bryanp]

When I was making some more test cuts in the air yesterday and found out it is also drifting in the X direction when cutting in the Y only axis. It will cut a square but not parallel to the table.

Is there machine parameters that may be wrong or need to set to fix this problem?

Video's showing movement in the X direction only, Y only, and a 90 angle. I did my best to sync the include screen information.

In each case, the first file is a video and the second is .h control file. I included the .h file.

Move X

Dropbox - Move X.mov

Dropbox - 5004.h



Move Y

Dropbox - Move Y.mov

Dropbox - 5005.h



Move 90

Dropbox - Move 90.mov

https://www.dropbox.com/s/xc3duikp4ofbofl/5006.h?dl=0


Any ideas on how I might fix this is greatly appreciated.


If you need more information about the machine or need me to do a test please just ask.


Thanks,

Bryan

[num1bryanp]

Hello All,

So the real question was, what can supersede other commands.
Wait for it..... The Touch Probe

Press Touch Probe
Up arrowed to Rotation ent
It was set +2.0 degrees, pressed 0, ent
ROT disappeared... and this problem is put to bed.

Video of fix
https://www.dropbox.com/s/stc6n4c2tm...20res.mp4?dl=0

Thanks for your help,
Bryan