# BUG report on pause/resume dual printhead **URL:** \ **Category:** Snapmaker2.0 Troubleshooting guides\ **Tags:** Feature-Request, Bug-report\ **Created:** [October 9, 2024, 12:32pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892 "2024-10-09T12:32:41Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![gerardvandenelshout](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gerardvandenelshout/32/16097_2.png) [@gerardvandenelshout](https://forum.snapmaker.com/u/gerardvandenelshout)\ **Post date:** [October 9, 2024, 12:32pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/1 "2024-10-09T12:32:41Z")
Just had the following happen on 350AT with dual head: Was printing from CURA (latest) in memory ONLY right extruder in use Manual flow adjust to 104 Pressed PAUSE and confirmed Head+axis moved UP while about 10cm got extruded ??? pressing CONTINUE unloaded the filament while moving down printhead resumend on proper position but without filament. Since running of-line this is firmware issue. kind regards ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [October 9, 2024, 7:26pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/2 "2024-10-09T19:26:03Z")
Is this reproduceable? What firmware are you on? Do you print and pause from the touchscreen? I see a few firmware problems too if I print with a single nozzle on the dual print head… ---
**Author:** ![gerardvandenelshout](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gerardvandenelshout/32/16097_2.png) [@gerardvandenelshout](https://forum.snapmaker.com/u/gerardvandenelshout)\ **Post date:** [October 9, 2024, 7:46pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/3 "2024-10-09T19:46:13Z")
The latest current firmware…dont have access to machine now. And yes, used touchscreen…printer was used offline. Greetings from windmill country ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [October 10, 2024, 7:03pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/4 "2024-10-10T19:03:57Z")
If I press pause, the head moves up and there is a string from the model to the nozzle which is easy removable. If I press continue, it extrudes a few cm of filament and moves to the last print position. On my machine I can’t see a problem. May you record a video about and share it, please? ---
**Author:** ![gerardvandenelshout](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gerardvandenelshout/32/16097_2.png) [@gerardvandenelshout](https://forum.snapmaker.com/u/gerardvandenelshout)\ **Post date:** [October 10, 2024, 7:31pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/5 "2024-10-10T19:31:36Z")
I ll try to recreate tomorrow…local time late night now …hihi ---
**Author:** ![gerardvandenelshout](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gerardvandenelshout/32/16097_2.png) [@gerardvandenelshout](https://forum.snapmaker.com/u/gerardvandenelshout)\ **Post date:** [October 11, 2024, 8:23am UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/6 "2024-10-11T08:23:45Z")
Hi Chris as promissed some more info … Was not able to EXACTLY reproduce, however still an issue… The video shows a lot of plastic extruded just above the model…before descending again; thus ruining the print i guess… also included picture of touchdcreen with details. Kind regards, Gerard Want to send video but only 8MB allowed please send mailadress for wetransfer private. SNAPMAKER A350T/F350 FW: SNAPMAKER2\_V1.20.3\_20240716 TOUCHSCREEN V1.19.1 CTRL : V4.7.2 ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [October 11, 2024, 10:53am UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/7 "2024-10-11T10:53:07Z")
Unfortunately the pictures are missing. Send me the link in a pm please. ---
**Author:** ![gerardvandenelshout](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gerardvandenelshout/32/16097_2.png) [@gerardvandenelshout](https://forum.snapmaker.com/u/gerardvandenelshout)\ **Post date:** [October 11, 2024, 1:23pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/8 "2024-10-11T13:23:11Z")
Chris, send me ANY mailaddress and i send a we transfer…video is 250MB ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [October 11, 2024, 5:25pm UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/9 "2024-10-11T17:25:56Z")
I have sent you a PM. ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [October 12, 2024, 5:34am UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/10 "2024-10-12T05:34:21Z")
Thank you, I got it. Everything seems to me normal. The described extrusion is for purging the nozzle (refresh and extrude “old” baked filament) this should be like this and has to be removed by hand. For me it works best if I take it and remove it just before the nozzle touches the model. ---
**Author:** ![gerardvandenelshout](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gerardvandenelshout/32/16097_2.png) [@gerardvandenelshout](https://forum.snapmaker.com/u/gerardvandenelshout)\ **Post date:** [October 12, 2024, 5:47am UTC](https://forum.snapmaker.com/t/bug-report-on-pause-resume-dual-printhead/37892/11 "2024-10-12T05:47:19Z")
Oke Chris, Unfortunately what really went wrong was not repeatable…(or fortunately hihihi)… Case closed. Kind regards