# Two klipper printers turning heat off to bed and nozzle on print start

**URL:** <https://klipper.discourse.group/t/two-klipper-printers-turning-heat-off-to-bed-and-nozzle-on-print-start/12181>\
**Category:** General Discussion\
**Created:** [December 9, 2023, 3:51pm UTC](https://klipper.discourse.group/t/two-klipper-printers-turning-heat-off-to-bed-and-nozzle-on-print-start/12181 "2023-12-09T15:51:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FoxWrangler](https://avatars.discourse-cdn.com/v4/letter/f/0ea827/32.png) [@FoxWrangler](https://klipper.discourse.group/u/FoxWrangler)\
**Post date:** [December 9, 2023, 3:51pm UTC](https://klipper.discourse.group/t/two-klipper-printers-turning-heat-off-to-bed-and-nozzle-on-print-start/12181/1 "2023-12-09T15:51:11Z")

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### Basic Information:

Printer Model: Tronxy X5SA, Ender 3  
 MCU / Printerboard: Chitu V6, E3 mini V3  
[klippy(4).log](https://klipper.discourse.group/uploads/short-url/yU7rD1Fo7FKMjwRbW20lr1KaNsW.log) (1.1 MB)

_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** _

 ![unnamed](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/8/86599153a2319b1845ca1fbf19912154cab78412.jpeg)

### Describe your issue:

NOTE: Having same issue on both printers.  
I have just recent flashed both of my printers over to mainsail. Having finished basic calibration I am now now trying to get a print off. I preheat both bed and extruder, start print and get these messages in the photo popping up, both bed and extruder enter cool down but the printer keeps going. I am assuming that the macros are causing me issues but I cant seem to figure out what I am missing.

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**Author:** ![Sineos](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/sineos/32/18_2.png) [@Sineos](https://klipper.discourse.group/u/Sineos)\
**Post date:** [December 9, 2023, 5:13pm UTC](https://klipper.discourse.group/t/two-klipper-printers-turning-heat-off-to-bed-and-nozzle-on-print-start/12181/2 "2023-12-09T17:13:08Z")

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```auto
Unknown command:"PRINT_START"
Unknown command:"START_PRINT"

```

Means that you have neither a PRINT\_START nor START\_PRINT macro in your printer.cfg. See [klipper/config/sample-macros.cfg at 99d7af87fd7cd74b9a6eab355eb71327ed3b8256 · Klipper3d/klipper · GitHub](https://github.com/Klipper3d/klipper/blob/99d7af87fd7cd74b9a6eab355eb71327ed3b8256/config/sample-macros.cfg#L15-L49) for an example of such a macro.

Make sure to pass the correct parameters from your slicer. They depend on the slicer you are using.

```auto
Unknown command:"EXCLUDE_OBJECT_START"

```

Means you have setup your slicer to support cancelling individual objects but you have not configured Klipper for it. See [Exclude Objects - Klipper documentation](https://www.klipper3d.org/Exclude_Object.html)

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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:** [February 7, 2024, 5:13pm UTC](https://klipper.discourse.group/t/two-klipper-printers-turning-heat-off-to-bed-and-nozzle-on-print-start/12181/3 "2024-02-07T17:13:39Z")

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Closed on February 7, 2024, 5:13pm UTC

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