# Printing problem with two extruders **URL:** \ **Category:** General Discussion\ **Created:** [October 12, 2024, 4:48pm UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352 "2024-10-12T16:48:51Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![mickaelr30](https://avatars.discourse-cdn.com/v4/letter/m/edb3f5/32.png) [@mickaelr30](https://klipper.discourse.group/u/mickaelr30)\ **Post date:** [October 12, 2024, 4:48pm UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352/1 "2024-10-12T16:48:51Z")
### Basic Information: Printer Model: Tronxy X5Sa 2E MCU / Printerboard: octopus pro Host / SBC : pc [klippy.log](https://klipper.discourse.group/uploads/short-url/wsTHjcdAtDrDRC3dZPaDLlJLOqm.log) (27.9 KB) hello, I configured my machine as indicated in [[X-In/1-Out Non-Mixing Extruder - Automate SuperSlicer & PrusaSlicer Filament Swaps - #16 by Snakn1](https://klipper.discourse.group/t/x-in-1-out-non-mixing-extruder-automate-superslicer-prusaslicer-filament-swaps/5285/16)] as explained by @jjarosz with prusaSlicer but it does not work. the machine starts printing with T0 then goes into purge to go to T1 finishes printing the first layer, goes to the second to print T1 then when it goes into purge to go to T0 I have this error: Unable to deduce the active extruder stepper what am I missing? thanks ---
**Author:** ![gjpc](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/gjpc/32/13128_2.png) [@gjpc](https://klipper.discourse.group/u/gjpc)\ **Post date:** [October 13, 2024, 6:22pm UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352/3 "2024-10-13T18:22:22Z")
Don’t know if it would help but a just posted a dual extruder config: > [@Zonestar P802QR2 with BTT boards](https://klipper.discourse.group/t/zonestar-p802qr2-with-btt-boards/19373): > > Heavily modified Zonestar P802QR2 with the mcu BTT SKR V1.4 BTT display D\_TFT24\_V1.1.27 and the BTT CB1 controller. Everything works, It does two color prints. Config file: [include mainsail.cfg] #[include zonestar\_macros.cfg] # host MCU service is preinstalled and ready to use with: #[mcu CB1] [mcu] # spare board #serial: /dev/serial/by-id/usb-Klipper\_lpc1769\_1DE0FF13618445AF63BED65CC42000F5-if00 #printer board serial: /dev/serial/by-id/usb-Klipper\_lpc1769\_1A5001184810… ---
**Author:** ![mickaelr30](https://avatars.discourse-cdn.com/v4/letter/m/edb3f5/32.png) [@mickaelr30](https://klipper.discourse.group/u/mickaelr30)\ **Post date:** [October 13, 2024, 8:40pm UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352/4 "2024-10-13T20:40:20Z")
mine only has one hot end but I’ll have a look ---
**Author:** ![Madjax](https://avatars.discourse-cdn.com/v4/letter/m/4da419/32.png) [@Madjax](https://klipper.discourse.group/u/Madjax)\ **Post date:** [October 14, 2024, 4:43am UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352/5 "2024-10-14T04:43:39Z")
Hey I’m dealing with the same issues with my printer. Sovol SV02 with a Manta M8p Board and 2 Extruders. I keep trying to tune the other extruder using Orca Slicers built in pressures advance test but keep getting the same “Unable to infer active extruder stepper”. even after changing the G-code file Manually. It will print with the other extruder fine and with two colors. just wont print right when I do calibration test. ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [October 14, 2024, 12:41pm UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352/6 "2024-10-14T12:41:12Z")
Hello @Madjax ! Same issues - same requirements: > ### Basic Information: > > Printer Model: > MCU / Printerboard: > Host / SBC > klippy.log > > _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** _ ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\ **Post date:** [December 13, 2024, 12:41pm UTC](https://klipper.discourse.group/t/printing-problem-with-two-extruders/19352/7 "2024-12-13T12:41:40Z")
Closed on December 13, 2024, 12:41pm UTC This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.