- Need Help!- 96 Arrow 500
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Member
96 Arrow 500
Hi
I run a arrow 500 Acramatic 2100 control. Mainly produce mold parts
Recently I did a job were a block was ground square I picked it up in center. Did some milling found out I was of center
Did some tests.
If I machine the complete block profile an say a bore the bore is perfectly in center
If I take a ground block indicate it in center mill a bore it is off center in x by .002 and y .001
Take the same block indicate it in center shift my x and y mill bore I is good
What could be causing this
Thanks Joe
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Member
Re: 96 Arrow 500
Joe, I would either have someone run an X-Y, Z-Y, Z-X Renishaw QC20-W Ballbar ( example:
), or make various mechanical checks.
X-Z Tram; Y-Z Tram;
Thrust Bearing Test using a .0001" test indicator and a 5/16" ball bearing on the end of the X and then the Y ball-screws.
Looking and the Ballnut Pre-load or loss thereof of the X and then Y ball-screws.
Your control also has bi-directional laser compensation and possibly backlash compensation active which was set up when new and in good mechanical condition.
Greg W
- Need Help!- 96 Arrow 500
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