# Issue with Tai Chi extruder setup

**URL:** https://klipper.discourse.group/t/issue-with-tai-chi-extruder-setup/19534
**Category:** General Discussion
**Created:** [October 21, 2024, 3:08pm UTC](https://klipper.discourse.group/t/issue-with-tai-chi-extruder-setup/19534 "2024-10-21T15:08:01Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![mjfsch](https://avatars.discourse-cdn.com/v4/letter/m/cc9497/32.png) [@mjfsch](https://klipper.discourse.group/u/mjfsch)
#### Post date: [October 22, 2024, 8:24am UTC](https://klipper.discourse.group/t/issue-with-tai-chi-extruder-setup/19534/3 "2024-10-22T08:24:47Z")

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To use the Tai-Chi hotend, youll need to set up your second extruder as an extruder stepper, something like this

```auto
[extruder_stepper extruder1]
extruder: 
step_pin: PC13
dir_pin: !PF0
enable_pin: !PF1
microsteps: 16
rotation_distance: 7.71

```

youll then need to need to configure your T0 and T1 macros to change the extruder thats been used

```auto
[gcode_macro T0]
gcode:
	SYNC_EXTRUDER_MOTION EXTRUDER="extruder" MOTION_QUEUE="extruder"
	SYNC_EXTRUDER_MOTION EXTRUDER="extruder1" MOTION_QUEUE=""

[gcode_macro T1]
gcode:
	SYNC_EXTRUDER_MOTION EXTRUDER="extruder" MOTION_QUEUE=""
	SYNC_EXTRUDER_MOTION EXTRUDER="extruder1" MOTION_QUEUE="extruder"

```

if you want to use PA, then you need to set that in the startup gcode

```auto
[delayed_gcode STARTUP_GCODE]
initial_duration: 0.1
gcode:
	set_pressure_advance extruder=extruder advance=0.45 smooth_time=0.04
	set_pressure_advance extruder=extruder1 advance=0.45 smooth_time=0.04

```

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