Core XY, sensor-less homing, integrated camera, touch screen, pi, 32-bit controller, fast, quiet, beautiful prints. 300 x 300 x any build volume. Just change out the Z lead screws, rods, and four pillars. Total BOM around $700 USD. Build time around 6 hours.

Getting an accurate scan of a golf ball can be difficult with general-purpose 3D scanners. This purpose-built golf ball scanner uses a very accurate Keyence LK-081 laser displacement sensor with an Open Builds linear actuator for the vertical axis and a Sherline CNC rotary table for the turntable. Scan detail is determined by the sample step size and can be set arbitrarily based on desired scan time.

A 250x250 mm Delta Printer utilizing a Duet Wifi controller and a Titan Aero direct drive extruder.

For the x and y Axis you set the zero point with a limit switch, but how can you get the zero position for the z Axis? You have different thickness of material to mill and when you change the tool, you have also a other z Axis positon. With the Sensor, you can define the zero position of the piece automaticly.