Bad geometry can be caused by a several things:
Tilted torch axis - either torch itself or the hole in the nozzle is off-axis.
- Check consumables.
- Check that the torch is parallel with the Z axis and square to the table.
Load on the arm
- Support the torch cable to reduce weight and any sideways pull.
If you are getting the curve even with the stylus, it’s likely this one:
Bad calibration - try doing it again using these tips:
- Update to the latest firmware, both on the machine and on the pendant.
- Check that your triangle calibration fixture is straight and square, your calibration will only be as straight and square as the fixture.
- Make sure to use a good, flat surface, and clamp the triangle fixture to the machine so that it does not move throughout the whole process.
- Keep the stylus/torch pressed against the shuttle cone so they don’t separate as you move them.
- Move the shuttle slower to improve accuracy, take about 10 seconds to smoothly go across each rail.
- Try the “Use Defaults” option at the start of calibration instead of starting from your last calibration values.
