"Z Bend" Z Sensor

Most deltas have some amount of effector tilt as the head moves around the print surface, so a Z sensor that is offset from the nozzle will introduce errors due to tilt.

This sensor has zero X and Y offset, which means that effector tilt doesn't affect the measured Z value.

It automatically deploys and retracts, and seems to work very well.

| Specification | |
| -------------- :| -------------|
| Deployment | Automatic |
| Bed surface | Compatible with all bed surfaces |
| Bed preparation | None |
| Sensing method | Physical touch probe, which triggers an optical sensor |
| X offset from nozzle | 0 |
| Y offset from nozzle | 0 |
| Repeatability | Around 0.01mm |
| Printer type | Recommended for Delta printers |


Here is a video showing how it works:
https://www.youtube.com/watch?v=U1EvF51eAaQ