# Ender 3 Pro BL Touch nightmare

**URL:** https://marlin.crc.id.au/forum/t/ender-3-pro-bl-touch-nightmare/292
**Category:** Support
**Created:** [9 October 2021 21:30 UTC](https://marlin.crc.id.au/forum/t/ender-3-pro-bl-touch-nightmare/292 "2021-10-09T21:30:09Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![CRCinAU](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/crcinau/32/1337_2.png) [@CRCinAU](https://marlin.crc.id.au/forum/u/CRCinAU)
#### Post date: [9 October 2021 23:21 UTC](https://marlin.crc.id.au/forum/t/ender-3-pro-bl-touch-nightmare/292/3 "2021-10-09T23:21:13Z")

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The Z axis is not supposed to go below zero. This tells the printer you want to move your nozzle below the bed.

Once your printer is homed, use the Z-Offset wizard to calculate your Z-Offset.

Going below 0 on the Z axis is a recipe for trouble.

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