Hi All,
Halfway through the roughing, I noticed this tapering in my stock (see 1st photo).
I paused the work, turned the B axis 90d, moved the Z axis in close and used a feeler gauge and recorded the gaps at near extreme points along the stock.
Results of measurements and calculations indicate that I’m out by 0.21 degrees (see 3rd photo)
Seems my math was spot on, since when I manually add a 0.209 degree tilt in Kinetic Control am getting a very consistent gap at the extreme ends of the stock.
That’s awesome… but how can I change the Kinetic Control to incorporate this correction into A-Axis home position ?
You can change the zero position of your A axis, but I would be hesitant to jump to making that change just yet. The A axis is calibrated to make the B table parallel to the travel of the XZ axes of the machine. The ER40 collet may not be holding your stock perfectly perpendicular to the table. It may not be seated properly or something like that. If you rotate the ER40 collet do see the same offset in A? I would start by investigating the work holding before adjusting the calibration of the machine.
If you’re confident that you want to change the zero position of the A axis it can be changed in the Config tab > Server tab > Machine Config panel > Overlay tab. I would enter your serial number into the text field at the top of the Machine Config panel and click the Download button to get a backup of your current calibration. You’ll be able to upload that calibration file to restore if you decide you want to revert your changes.
To adjust the A home offset, adjust the [JOINT_3]HOME_OFFSET value. There’s an edit button in the bottom right that will allow you to make changes. Then be sure to click the save button in the same place when done.
