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Lab talk, the good, the bad, and the ugly
Dental-CAM
Roland dwx 52dci lines on zirconia crown surface???
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<blockquote data-quote="barath" data-source="post: 366778" data-attributes="member: 27999"><p>The parting line issue is due to improper calibration. While the machine is calibrated the machine finds the center of rotation of the disk holder. If the calibration process ends up finding a wrong center eg: 50um away from actual center along one of the axis, Then when A axis makes 180 degree the parting line of 100um forms at the junction of 0 and 180. The reason for this might be loss of steps in stepper motors, faulty drivers or crooked machine . It has nothing to do with spindle or machining strategy. The best way to find this is to mill a cube and measure its dimensions and analyze which axis is the parting line resulting from.</p></blockquote><p></p>
[QUOTE="barath, post: 366778, member: 27999"] The parting line issue is due to improper calibration. While the machine is calibrated the machine finds the center of rotation of the disk holder. If the calibration process ends up finding a wrong center eg: 50um away from actual center along one of the axis, Then when A axis makes 180 degree the parting line of 100um forms at the junction of 0 and 180. The reason for this might be loss of steps in stepper motors, faulty drivers or crooked machine . It has nothing to do with spindle or machining strategy. The best way to find this is to mill a cube and measure its dimensions and analyze which axis is the parting line resulting from. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAM
Roland dwx 52dci lines on zirconia crown surface???
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