# Ender 3 w/ BL/CR Touch - Soft Stops make it unable to get my z-probe offset close enough
**URL:** https://marlin.crc.id.au/forum/t/ender-3-w-bl-cr-touch-soft-stops-make-it-unable-to-get-my-z-probe-offset-close-enough/902
**Category:** Support
**Created:** [13 May 2022 18:35 UTC](https://marlin.crc.id.au/forum/t/ender-3-w-bl-cr-touch-soft-stops-make-it-unable-to-get-my-z-probe-offset-close-enough/902 "2022-05-13T18:35:35Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Kare423](https://marlin.crc.id.au/forum/u/Kare423)
#### Post date: [13 May 2022 18:35 UTC](https://marlin.crc.id.au/forum/t/ender-3-w-bl-cr-touch-soft-stops-make-it-unable-to-get-my-z-probe-offset-close-enough/902/1 "2022-05-13T18:35:35Z")
I updated my firmware on my Ender 3, which also has a CR Touch. I just leveled the bed and I am trying to find my z probe offset, but it no longer will go into negative numbers. So, I’m unable to get my nozzle close enough to the build plate. Is there a way to get it to go into the negative numbers? Could this be added to the firmware? I’m new to 3D printing.
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### Author:  [@CRCinAU](https://marlin.crc.id.au/forum/u/CRCinAU)
#### Post date: [14 May 2022 01:55 UTC](https://marlin.crc.id.au/forum/t/ender-3-w-bl-cr-touch-soft-stops-make-it-unable-to-get-my-z-probe-offset-close-enough/902/2 "2022-05-14T01:55:23Z")
Hi,
See the “Setting your Z-Offset” section of the BLTouch FAQ:
> [@BLTouch - Frequently Asked Questions](https://marlin.crc.id.au/forum/t/bltouch-frequently-asked-questions/19):
>
> [image] The basic: The BLTouch has two parts from a firmware perspective. a) Control, often called servo. This consists of 3 wires: Red is +5v Yellow is signal and; either a Brown or Black is GND. The control signal is PWM and is treated just like a servo. b) Trigger. 2 wires: Black is GND White is the signal. Wiring the BLTouch to your controller All mainboards are different but they can have a dedicated bltouch plug - eg the creality V4 series boards [image] G V and IN are the cont…