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G-Code, CAD, and CAM discussions / Re: strange circle cutting
« on: August 10, 2012, 03:41:46 PM »
motors are direct coupled the coupling is tight backlash is on. it appears as if the y axis is not responding to smaller movement steps??
i set up a dial on the y axis and set jogg to step at 0.001 then wwalked the table getting this results
DRO Dial
0.0000 0.0000
0.0133 0.0000
0.0143 0.0000
0.0153 0.00098
0.0163 0.0012
0.0174 0.0022
0.0184 0.003
0.0194 0.0041
0.0204 0.005
i ran the table in for 1 inch befor starting so it would be well out of any backlash .
also while running these i noticed tha for some strnge reason the DRO for the x axis started gumping up by about 0.100" but no movement on the machine just the DRO??? then it stopedand i havent been able to reproduce that ..
i set up a dial on the y axis and set jogg to step at 0.001 then wwalked the table getting this results
DRO Dial
0.0000 0.0000
0.0133 0.0000
0.0143 0.0000
0.0153 0.00098
0.0163 0.0012
0.0174 0.0022
0.0184 0.003
0.0194 0.0041
0.0204 0.005
i ran the table in for 1 inch befor starting so it would be well out of any backlash .
also while running these i noticed tha for some strnge reason the DRO for the x axis started gumping up by about 0.100" but no movement on the machine just the DRO??? then it stopedand i havent been able to reproduce that ..