Mori NH5000 DCG leaving witness marks ini X quadrant

[dstryr]

Milling a boss or a hole and getting witness marks in the x quadrants. 0 and 180*
Did a ball bar test and we adjusted our backlash and motor power parameters to really shrink these but still there. Anyone have this problem and maybe have a solution?

[Jasond0530]

Had the same problem with my NH5000'S mori engineer was kind enough to leave me these

faq_SV02-999-49-006E Quadrant Projection Adjustment.pdf

O0000001.txt

[absolute technologies]

It's been my experience that many service technicians when doing the ball bar test end up over compensating the back-lash setting. It seems they tighten up on the electronic backlash setting that makes the ball-bar plot look better however physically there is no back-lash and the machine is over compensating.  A good test to make sure back-lash isn't too tight or too loose is to mount a .0001 indicator in the machine and touch off somewhere. With the machine in .0001 handle mode, move the machine in the + direction one click at-a-time, watching the dial indicator then come back negative direction 1 click. You should have at least 1 no more than 2 clicks in the opposite direction before the dial indicator needle starts to move. If you come back 1 click and the machine only moves a half a tenth then you can't get much better than that but if you come back 1 click and the machine moves more than .0001 or does a little dance then its' likely your back-lash is probably too tight. Physically the machine has to have some back-lash, just not too much and certainly you don't want it over compensating.

 

Good Luck!

Len Dye

[dstryr]

Had the same problem with my NH5000'S mori engineer was kind enough to leave me these

Wow thank you so much.

[dstryr]

Had the same problem with my NH5000'S mori engineer was kind enough to leave me these

Finally had a chance to deal with this....

Parameter 2257

X was 160

X2 was 160

OOTB settings

 

Kept running parts until I was happy and ended up with

X 80

X2 80

 

Thanks again so much for this document. Saved me lots of headaches.

[dstryr]

Had the same problem with my NH5000'S mori engineer was kind enough to leave me these

Finally had a chance to deal with this....

Parameter 2257

X was 160

X2 was 160

OOTB settings

 

Kept running parts until I was happy and ended up with

X 80

X2 80

 

Thanks again so much for this document. Saved me lots of headaches.