# FLsun Q5 delta\_calibrate does not recognize probe triggering

**URL:** <https://klipper.discourse.group/t/flsun-q5-delta-calibrate-does-not-recognize-probe-triggering/24835>\
**Category:** General Discussion\
**Created:** [September 10, 2025, 2:18am UTC](https://klipper.discourse.group/t/flsun-q5-delta-calibrate-does-not-recognize-probe-triggering/24835 "2025-09-10T02:18:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Wumbologist](https://avatars.discourse-cdn.com/v4/letter/w/e480ec/32.png) [@Wumbologist](https://klipper.discourse.group/u/Wumbologist)\
**Post date:** [September 10, 2025, 2:18am UTC](https://klipper.discourse.group/t/flsun-q5-delta-calibrate-does-not-recognize-probe-triggering/24835/1 "2025-09-10T02:18:19Z")

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### Basic Information:

Printer Model: FLsun Q5  
 MCU / Printerboard: BTT SKR mini E3 V3.0  
 Host / SBC: Raspberry Pi 4  
 klippy.log

[klippy(8).log](https://klipper.discourse.group/uploads/short-url/ltGBNblMSGXJeqK4AMaL6y0W4sq.log) (358.9 KB)

_Fill out above information and_ _ **in all cases attach your** _ **`klippy.log` _file_** (use zip to compress it, if too big). _Pasting your_ `printer.cfg` _is **not** needed_  
_ **Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there** _

### Describe your issue:

My stock probe seems to work fine. QUERY\_PROBE returns OPEN and TRIGGERED correctly, but when running DELTA\_CALIBRATE, the probe triggering does not stop the descent of the print head, and it will crash into the bed if not stopped. Here is the relevant sections from my config file:

the “^” in front of the pin was a suggested fix that did not work. The issue occurs without it too

[probe]

pin: ^!PA1

x\_offset: 0

y\_offset: 0

z\_offset: 20.26

speed: 5.0

samples: 5

samples\_result: average

sample\_retract\_dist: 3

samples\_tolerance: 0.02

samples\_tolerance\_retries: 5

[delta\_calibrate]

radius: 95

horizontal\_move\_z: 25

speed: 10

…

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\
**Post date:** [November 9, 2025, 2:18am UTC](https://klipper.discourse.group/t/flsun-q5-delta-calibrate-does-not-recognize-probe-triggering/24835/2 "2025-11-09T02:18:50Z")

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