# Difficulties with Z probe "No trigger on z after full movement"

**URL:** <https://klipper.discourse.group/t/difficulties-with-z-probe-no-trigger-on-z-after-full-movement/12977>\
**Category:** General Discussion\
**Created:** [January 8, 2024, 10:20pm UTC](https://klipper.discourse.group/t/difficulties-with-z-probe-no-trigger-on-z-after-full-movement/12977 "2024-01-08T22:20:54Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![gago](https://avatars.discourse-cdn.com/v4/letter/g/f04885/32.png) [@gago](https://klipper.discourse.group/u/gago)\
**Post date:** [January 9, 2024, 12:22pm UTC](https://klipper.discourse.group/t/difficulties-with-z-probe-no-trigger-on-z-after-full-movement/12977/4 "2024-01-09T12:22:38Z")

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I got it, my Z motors were inverted. I was following this article for x,y and z directions but my printer is a corexy, so the z+ should move downwards and not upwards as stated here. Another issue tackled, let me move to the next one.

> [@Understanding X and Y Axes Limits and Homing](https://klipper.discourse.group/t/understanding-x-and-y-axes-limits-and-homing/10779):
>
> The X and Y Axis Klipper needs to know from its printer.cfg settings how far the X and Y axes can safely move without hitting the printer’s frame. It also needs to know where the origin (X=0 / Y=0) is. This origin is the beginning of the usable printer bed. In the following, we assume a Cartesian printer that follows the conventions of a [Cartesian Coordinate System](https://en.wikipedia.org/wiki/Cartesian_coordinate_system). This is also the reason why it is a quasi-standard to define the origin as the left-front corner of the bed. This way, all logic…

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