# Verify Endstops

This section explains how to verify that all of the Endstops are detected by Klipper.

* Manually move all of the printer axes so that none of them are in contact with any of the Endstops;
* Send a <mark style="color:red;">`QUERY_ENDSTOPS`</mark> command in the <mark style="color:red;">`Console`</mark>;
  * It should return with the following status:
    * <mark style="color:red;">`x:open y:open z:open`</mark>

![x:open y:open z:open](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2FTMvjr82a26Rdqtx8ofHu%2Fend1.png?alt=media\&token=eef9c93d-c2eb-43b8-af1a-2a973e40d49d)

* Locate the <mark style="color:red;">`y-axis`</mark> Endstop, which is the switch located to the right of the rear stepper motor;

![y-axis Endstop](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2F2t5eYvszFqUJtZ3MGs6m%2Fend2.png?alt=media\&token=b6ac73ad-bce9-4cc2-b725-9455f7fd652e)

* Engage this switch by moving the <mark style="color:red;">`Heater Bed`</mark> to the rear of the printer until you hear the switch engage; OR
* If you are working close to the printer or with a partner to run these tests, you can manually engage the switch by pressing and holding it with your hand;
* Once the switch is engaged;
  * Send a <mark style="color:red;">`QUERY_ENDSTOPS`</mark> command in the <mark style="color:red;">`Console`</mark>;
  * It should return the following status:
    * <mark style="color:red;">`x:open y:TRIGGERED z:open`</mark>;

![x:open y:TRIGGERED z:open](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2FzvRxFmGqMN8nIXvAp2tv%2Fend3.png?alt=media\&token=70b1b897-7ae9-4a7f-ba61-685f9be8c3ad)

* Move the <mark style="color:red;">`Heater Bed`</mark> back to a neutral position or disengage the y-axis switch;
* Locate the <mark style="color:red;">`x-axis`</mark> Endstop, which is the switch located on the left side of the x-axis;

![x-axis Endstop](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2FxnbuMjQeRNIE7AUMQH5j%2Fend4.png?alt=media\&token=ac30b446-0ea3-42d9-8fe2-0d35183f1542)

* Engage this switch by move the <mark style="color:red;">`Hot End/Extruder`</mark> to the far left of the <mark style="color:red;">`x-axis`</mark> until your you hear the switch engage; OR
* If you are working close to the printer or with a partner to run these tests, you can manually engage the switch by pressing and holding it with your hand;
* Once the switch has been engaged;
  * Send a <mark style="color:red;">`QUERY_ENDSTOPS`</mark> command in the <mark style="color:red;">`Console`</mark>;
  * It should return the following status:
    * <mark style="color:red;">`x:TRIGGERED y:open z:open`</mark>;

![x:TRIGGERED y:open z:open](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2FfMdKhb4IT1QXPkglbz0Y%2Fend5.png?alt=media\&token=a55c0bef-cfd6-4eb1-b49b-c8fe42f71ed0)

* Move the <mark style="color:red;">`Hot End/Extruder`</mark> back to a neutral position or disengage the <mark style="color:red;">`x-axis`</mark> switch;
* Locate the <mark style="color:red;">`z-axis`</mark> Endstops, these are two optical sensors on either side of the of the print bed;
  * Shown in the picture below if the left <mark style="color:red;">`z-axis`</mark> Endstop;

![z-axis Endstop](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2FKDy3iiJ4ks7P7g1T0BPL%2Fend6.png?alt=media\&token=60543080-936a-4874-ac44-e7be003db96f)

* Engage this switch by placing an object (e.g. folded piece of paper) between the sensor; OR
* You can lower the <mark style="color:red;">`z-axis`</mark> to engage the metal piece shown above the optical sensor in the picture above;
* Once the switch has been engaged;
* Send a <mark style="color:red;">`QUERY_ENDSTOPS`</mark> command in the <mark style="color:red;">`Console`</mark>;
  * It should return the following status:
    * <mark style="color:red;">`x:open y:open z:TRIGGERED`</mark>;
* You can repeat this step for both left and right <mark style="color:red;">`z-axis`</mark> Endstops;

![x:open y:open z:TRIGGERED](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2FTeRWKaN5ul0X3juEJ25U%2Fend7.png?alt=media\&token=88b695f4-b21a-43b0-953b-47b6e69a26df)

* Remove the object(s) from the z-axis sensor(s);
  * Send a <mark style="color:red;">`QUERY_ENDSTOPS`</mark> command in the <mark style="color:red;">`Console`</mark>;
    * It should return the following status:
      * <mark style="color:red;">`x:open y:open z:open`</mark>;

![](https://3358793419-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUZ4ecqSLgI2D4esAcVS%2Fuploads%2F6YPDRaxPTBISjf1bgZK8%2Fend8.png?alt=media\&token=ff56bf12-06b2-41ab-a877-815616b0b57c)
