# Strain Gauge/Load Cell based Endstops **URL:** \ **Category:** Developers\ **Created:** [February 23, 2022, 5:15am UTC](https://klipper.discourse.group/t/strain-gauge-load-cell-based-endstops/2134 "2022-02-23T05:15:09Z")\ **Posts on this page:** 1\ **Showing post:** 101
**Author:** ![garethky](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/garethky/32/956_2.png) [@garethky](https://klipper.discourse.group/u/garethky)\ **Post date:** [April 13, 2023, 4:43pm UTC](https://klipper.discourse.group/t/strain-gauge-load-cell-based-endstops/2134/101 "2023-04-13T16:43:51Z")
> [@MFBS](#): > > I am keen to see some pics of where and how Prusa have mounted their strain gauge best I can do is this render on the Prusa XL [blog post](https://blog.prusa3d.com/original-prusa-xl-first-look_58312/): ![drivegear_1](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/a/a085f9eb8415b5dd487721628ec9da85f74c2ed2.jpeg) You can see the “barbell” shape cut into the aluminum frame below the gear? That’s a beam load cell element. I’ve tried to model something myself last night and I’m not happy about the “Design for Manufacture” aspects of this solution: ![Screenshot 2023-04-13 at 9.28.20 AM](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/7/7d98975ab7b4b06d4b38d3ddf04b7e94e4f6912e.png) ![Screenshot 2023-04-13 at 9.36.54 AM](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/a/a8f77f8b0c298f6245722cce25de02001e5861e7.jpeg) Its in 2 parts to make accessing the screws in the hot end and the extruder possible. It requires machining from 3 sides of the load cell part which is expensive. The support bar on top has 2 threaded features. It’s width is controlled by the hot end, so I cant easily control the bending modulus that way. I’d like to see a single part solution with fewer machining steps/setups. But maybe this is enough to get the creative juices flowing? [OnShape Link](https://cad.onshape.com/documents/499c592920752d5ee8118a7d/w/10f90d0fe0dcb8c5e0069b35/e/614814447ffc64faca2d375b) --- _[View the full topic](https://klipper.discourse.group/t/strain-gauge-load-cell-based-endstops/2134)._