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Posts Made By:
JamesJ
Forum:
Troubleshooting
Sat 10 September 2011, 11:57
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Gerald: After much tuning I had arrived at an...
Gerald:
After much tuning I had arrived at an accel setting of 12 which does not totally get rid of problem but nearly does. I was beginning to think my problem lay elsewhere as 12 seems to be very...
Forum:
Troubleshooting
Wed 24 August 2011, 19:30
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Gerald thanks for the links. I read enough to...
Gerald thanks for the links. I read enough to know I am in no danger of becoming an engineer. :)
Forum:
Troubleshooting
Tue 23 August 2011, 19:11
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Brad I previously had my x and y axis set the...
Brad I previously had my x and y axis set the same at 1230 IPM and accel set to 50. After quick accel changing I no have y set at 1230 IPM and accel set at 38. Tomorrow I will reduce the y accel some...
Forum:
Troubleshooting
Tue 23 August 2011, 19:05
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
I may have a clue to my problem. After checking...
I may have a clue to my problem. After checking everything it seems the problem is most like the description Gerald is describing. I re-read the Mach3 manual section that talks about motor tuning and...
Forum:
Troubleshooting
Tue 23 August 2011, 18:30
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Gerald it does seem like a judder and it does...
Gerald it does seem like a judder and it does decay after about 3 maybe 4 "oscillations". The first oscillation coming out of the half circle is the largest then the next 3 decay in size until it,...
Forum:
Troubleshooting
Tue 23 August 2011, 18:22
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Brad, I tried using a 1/2 " piece of drill rod...
Brad, I tried using a 1/2 " piece of drill rod chucked in the router collet with the system powered on and did not find any "slop". I am able to cause about .010" of deflection with heavy pressure....
Forum:
Troubleshooting
Tue 23 August 2011, 18:09
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Ken, thanks for the explanation of G64. I'm not...
Ken, thanks for the explanation of G64. I'm not sure how to proceed to find out if it is my problem. I don't think the sheet is moving as it was screwed down in the four corners with metal screws.
Forum:
Troubleshooting
Mon 22 August 2011, 18:01
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Brad/Sean: I checked the v-wheels and carefully...
Brad/Sean: I checked the v-wheels and carefully checked for slop in the gantry, car and Z-slide. Checked pinion for tightness on the y axis motor and the x axis motors.
Ken: The overshoot is a...
Forum:
Troubleshooting
Sun 21 August 2011, 21:33
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
I now realize that I should captured some of the...
I now realize that I should captured some of the profile of the plywood part. I will try to describe:
the direction of travel is from foreground to background and represents travel in the x axis....
Forum:
Troubleshooting
Sun 21 August 2011, 19:26
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Brad, no slop or wiggle anywhere along the Y axis...
Brad, no slop or wiggle anywhere along the Y axis in either Y direction or x direction. I will be sure to check you suggested items tomorrow after work.
Sean, I will be sure to check the items you...
Forum:
Troubleshooting
Sun 21 August 2011, 15:09
Replies:
32
Odd overshoot in Y axis when changing direction
Views:
33,861
Posted By
JamesJ
Odd overshoot in Y axis when changing direction
I have noticed that if I move the car back and forth rapidly it continues to overshoot when stopped. I have tuned the motors and even retuned the Y axis but the movement persists. The overshoots...
Showing results 1 to 11 of 11
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