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Calibration Tools

Sexball Probe

The Sexball gets its rather raunchy name from being a derivative of hartk's Sexbolt Z Endstop. The addition of a ball at the end of the shaft allows it to do multi axis (XYZ) probing.

Converting an existing Sexbolt Z Endstop is easy, all you need is to replace the existing shaft with a M5 threaded (one end) shaft and 12mm threaded ball.

Not just any Z endstop

Only Z endstops with a bushing are recommended for use as a Sexball Probe. If your Z endstop is the style with a deflanged pulley, you will need to source the another.

Sexball Probe

LDO Kit

All of the hardware components for a Sexball Probe come as a part of LDO's Base StealthChanger Kit.

Community Tools

Axiscope

Axiscope is a specialized tool created by members of our community that is designed to simplify the calibration process for multi-tool 3D printers running Klipper-toolchanger using camera-assisted alignment.

Axiscope provides a streamlined web interface for:

  • Semi-automated XY calibration using camera feedback.
  • Automated Z alignment through use of a Z endstop or Sexball Probe.
  • Quick and precise tool alignment.
  • No calculations required, the offsets are given to you in the exact format used with Klipper-toolchanger.

Axiscope

Which Camera?

Axiscope can technically use any webcam, but it's recommended to use a camera that is built for purpose. See our build guide on how to assemble a camera specifically for Axiscope or consider Ember Prototype's CXC camera.

More information can be found on the Axiscope Github.

Nudge

Nudge is a multi axis probe where the shaft is suspended in a wobbler using magnets and screws. Nudging the probe in any axis breaks contact with screws within the probe which triggers the probe.

Nudge

For more information and build instructions, visit the Nudge GitHub.

Calibration Prints

If you don't have any nozzle calibration aids at your disposal, test prints are a simple and reliable way to get your nozzles aligned.

Test prints work by doing a print with 2+ tools and studying the alignment manually. Adjust the offset by the measured amount and print again. Repeat these steps until you are happy with alignment.