# How to Add Limit Switches onto LongMill

**URL:** <https://forum.sienci.com/t/how-to-add-limit-switches-onto-longmill/3583>\
**Category:** Guides & Resources\
**Created:** [September 2, 2021, 6:20pm UTC](https://forum.sienci.com/t/how-to-add-limit-switches-onto-longmill/3583 "2021-09-02T18:20:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kellyz](https://forum.sienci.com/letter_avatar_proxy/v4/letter/k/9fc29f/32.png) [@kellyz](https://forum.sienci.com/u/kellyz)\
**Post date:** [September 2, 2021, 6:20pm UTC](https://forum.sienci.com/t/how-to-add-limit-switches-onto-longmill/3583/1 "2021-09-02T18:20:21Z")

</div>

Many customers have expressed interest in limit switches as an add-on, because they want the increased accuracy of positioning their workpiece at the correct location. For mechanical switches and inductive sensors, we have created some documentation on how to generally assemble them onto the LongMill, and what settings to activate.

This guide is not specific to our limit switch products (which are coming soon)!

> **[Inductive Sensors - LongMill CNC](https://resources.sienci.com/view/lm-inductive-sensors/)**
>
> Limit switches, end stops or homing switches are sensors that sit at one or both ends of each movement axis of a CNC. Repeatably locates the machine via homing.

 ![lim switc](https://forum.sienci.com/uploads/default/original/2X/3/3112b4a408c5abf61cb3d7bfbad8846dfc57efde.png)